| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 342026000 |
Mounted on aircraft (EPO)
| 42 |
| 342026000 |
Ground based (EPO)
| 8 |
| 342026000 |
Mounted on satellite (EPO) | 5 |
| 20080211714 | Method of Measuring the Speed of Air by Doppler Radar - A method of measuring the speed of air in a zone of the atmosphere by the Doppler effect by means of a radar, the method comprising the steps of transmitting bursts of three pulses at different rates F | 09-04-2008 |
| 20090160700 | Monitoring and Mapping of Atmospheric Phenomena - A computerized system for mapping an atmospheric phenomenon in a geographic region. Multiple free-space electromagnetic communications links are previously distributed in the geographic region. The system includes an interface to monitoring mechanisms attached respectively to the free-space electromagnetic communications links. The monitoring mechanisms respectively monitor attenuation levels of the free-space electromagnetic communications links. A processor simultaneously processes the attenuation levels, and maps in the geographic region the atmospheric phenomenon. The simultaneous processing preferably applies a non-linear model which relates the attenuation levels the atmospheric phenomenon, and solves a tomographic problem based on the non-linear model and the attenuation levels. The tomographic problem is preferably solved by an interactive algorithm based on consecutive refinement and linear inversion at each iteration. Alternatively, an interpolation is performed based on respective inverse distance from the communications links. Preferably, the interpolation is further based on respective lengths of communications links. A data interface preferably provides to subscribers temporal information related to the atmospheric phenomenon within portions of the geographic region. | 06-25-2009 |
| 20090174596 | POLARIZATION-MODULATED TRANSMITTER FOR A WEATHER RADAR - Polarization modulated transmitter, in particular for a weather radar, with at least two signal paths ( | 07-09-2009 |
| 20090243917 | METHOD OF PROCESSING A RADAR IMAGE, OBTAINED IN PARTICULAR FROM AN AIRBORNE RADAR, WITH EVALUATION OF THE ALTITUDE OF THE 0ºC ISOTHERM - The invention targets a method of processing a radar image obtained from a radar. It comprises an automatic evaluation of the altitude of the isotherm at zero degrees Celsius, called zero isotherm, using a processing of the reflectivity information (rf(px)) conveyed by pixels (px) forming all or part of the radar image. | 10-01-2009 |
| 20090243918 | System and Method for Presenting Wind Speed Information - A system and method for presenting wind speed information in a manner so as to be easily understood and appreciated by viewers of televised weather report presentations and the like. Wind speed information is presented as two or three-dimensional wind speed contour lines, delineating geographic areas corresponding to different wind speeds, overlaid on a geographic map display either alone, or in combination with radar reflectivity information. Wind velocity information received from a weather radar system, such as NEXRAD, relative to the weather radar is converted to absolute wind speed information for display. | 10-01-2009 |
| 20090267826 | SYSTEM FOR MEASURING TURBULENCE REMOTELY - A system for detecting turbulence along a path that is subject to turbulence. The system may make use of at least one transmitter to transmit electromagnetic (EM) energy along the path and at least one receiver to receive the EM energy. At least one of the transmitter and the receiver moves along the path. The receiver may have an antenna responsive to incident EM energy to produce a received signal, and an input for accepting a velocity signal indicating a velocity that the receiver or the transmitter is moving. The receiver processes the received signal using the velocity signal to remove a shift associated with the received signal because of relative motion between a source of the EM energy and the receiver or transmitter that is moving along the path. Thus, the receiver determines an alteration of the EM energy caused by the turbulence and outputs a signal indicative of the turbulence. | 10-29-2009 |
| 20090295627 | Dual-polarization radar processing system using time domain method - Embodiments of the present invention provide for improved estimation of environmental parameters in a dual-polarization radar system. In some embodiments, environmental parameters can be estimated using a linear combination of data received in two orthogonal polarization states. In particular, embodiments of the invention improve ground clutter and noise mitigation in dual polarization radar systems. Moreover, embodiments of the invention also provide for systems to determine the differential reflectivity and/or the magnitude of the co-polar correlation coefficient and the differential phase in a dual polarization radar system. | 12-03-2009 |
| 20090315762 | Adaptive specific differential phase in dual-polarization radar - Systems and methods are provided for adaptively estimating the specific differential phase (K | 12-24-2009 |
| 20100026565 | METHOD FOR GENERATING A REPRESENTATION OF AN ATMOSPHERIC VORTEX KINEMATIC STRUCTURE - A method for generating a representation of a kinematic structure of an atmospheric vortex is provided. The method comprises receiving a plurality of signals from a Doppler radar. The signals are reflected at a plurality of pulse volumes. The method also comprises measuring a plurality of Doppler velocities based on the received signals. A plurality of scaled Doppler velocities are calculated representing the plurality of measured Doppler velocities, the radial distance between the Doppler radar and the pulse volume where the Doppler velocity is measured, and the distance between the radar and a first estimated atmospheric vortex center. The method also comprises generating a representation of the kinematic structure of the atmospheric vortex using the plurality of scaled Doppler wind velocity values. | 02-04-2010 |
| 20100117892 | METHOD FOR RADAR MONITORING OF WAKE TURBULENCE - The present invention relates to a method for detecting and grading the state and the evolution of wake turbulence caused by an aircraft, on the basis of the radar signals reflected by this turbulence, these signals being analyzed through analysis cells of given dimension in terms of distance and bearing. This method mainly comprises:
| 05-13-2010 |
| 20100164786 | Method of Characterizing the Convection Intensity of a Cloud, by a Meteorological Radar - The present invention relates to a method of characterizing the convection intensity of a cloud by a meteorological radar. | 07-01-2010 |
| 20100207809 | RADAR DEVICE AND RAIN/SNOW AREA DETECTING DEVICE - A radar device is disclosed. The radar device includes a radar antenna, from which detection signals are transmitted while the radar antenna being rotated, the radar device generating a radar image from reflection waves of the transmitted detection signals, a reception module for receiving the reflection waves of the detection signals, an inclination calculating module for calculating an inclination of level of the received signals that continue in a predetermined direction, the inclination being a rate of change in the received signal level per predetermined range in the predetermined direction, and a rain/snow reflection determining module for determining whether the received signals are reflection signals from at least one of rain and snow by using the inclination calculated by the inclination calculating module. | 08-19-2010 |
| 20100253574 | WEATHER RADAR AND WEATHER OBSERVATION METHOD - A weather radar includes an antenna unit of an active phased array system in which a plurality of antenna elements configured to transmit a radar pulse and receive a reflected pulse are arranged in a vertical direction, a transmission beam formation unit configured to divide an observation range in the elevation angle direction into a plurality of observation elevation angles, subdivide each observation elevation angle into a plurality of regions, assign a set of a plurality of regions not adjacent to each other to a pulse repetition interval (PRI), and form a fan-shaped transmission beam in the elevation angle direction for each of the regions in the set, and a reception beam formation unit configured to form a plurality pencil-shaped reception beams for each of the plurality of regions. | 10-07-2010 |
| 20100309041 | METHOD AND DEVICE FOR DETECTING PRECIPITATION BY RADAR - A method for detecting precipitation in a region monitored by radar beams includes ascertaining a first average power of a first backscattered radar signal, ascertaining a second average power of a second backscattered radar signal, and detecting an existence of a homogenous medium when the average powers conform. | 12-09-2010 |
| 20100328144 | WEATHER RADAR AND WEATHER OBSERVATION METHOD - A weather radar includes an antenna unit configured to transmit a radio wave from a plurality of antenna elements, and receive a reflected wave from a weather target by carrying out beam scanning in an elevation angle direction by phase control, a drive unit configured to control an elevation angle of an aperture of the antenna unit, and a controller configured to cause the antenna unit to carry out the beam scanning in a state where the aperture is faced to a point which presents a maximum range in the observational range by the drive unit, and direct, at a time point when the weather target is detected based on a received signal of the reflected wave, the aperture toward the weather target by the drive unit. | 12-30-2010 |
| 20110018757 | WEATHER RADAR APPARATUS AND RAINFALL RATE CALCULATION METHOD - According to one embodiment, a weather radar apparatus includes a transmitting/receiving unit configured to simultaneously transmit radar waves of a horizontally polarized wave and a vertically polarized wave and receive reflected waves, a signal processing unit configured to perform dual polarization observation based on a reception output from the transmitting/receiving unit and calculate a received power of each polarized wave, an observation parameter calculation unit configured to calculate, based on the received powers, a first observation parameter having a first spatial resolution, and a second observation parameter having higher correlation with a rainfall rate than that of the first observation parameter and a second spatial resolution lower than the first spatial resolution, and a rainfall rate calculation unit configured to synthetically determine the rainfall rate based on the first observation parameter and the second observation parameter. | 01-27-2011 |
| 20110050486 | DOPPLER RADAR APPARATUS AND METHOD OF CALCULATING DOPPLER VELOCITY - According to one embodiment, a Doppler radar apparatus includes a quadrature detection unit configured to quadrature-detect a received signal of a reflected pulse from an observation target, and generate time-series data including an in-phase component and a quadrature component, an interference judgment unit configured to judge whether an interference signal is mixed into the received signal based on the time-series data, a correction unit configured to correct a vector expressed by the in-phase component and the quadrature component such that variation with respect to time of a deviation angle of the vector continues when the interference judgment unit has judged that an interference signal is mixed into the received signal, and a calculation unit configured to calculate a Doppler velocity of the observation target based on an amount of variation with respect to time of the deviation angle of corrected vector. | 03-03-2011 |
| 20110063164 | WEATHER RADAR APPARATUS AND SIGNAL PROCESSING METHOD THEREOF - According to one embodiment, a weather radar apparatus includes a transmitting/receiving unit configured to transmit a radar wave to an observation target and receive a reflected wave, a distribution unit configured to distribute a received signal of the reflected wave to a main path and at least another path, an extraction unit configured to extract, from a signal of the other path, an interference wave signal extracted from another radio station, and a removing unit configured to remove the interference wave signal extracted from a signal of the main path. | 03-17-2011 |
| 20110090111 | METHOD AND APPARATUS FOR THE NOWCAST OF LIGHTNING THREAT USING POLARIMETRIC RADAR - A system and method for predicting the probability of cloud-to-ground lightning strikes, ‘frequent’, more than 2 strikes per minute on average, cloud to ground lightning strikes, and/or ‘numerous’, more than 4 strikes per minute on average, through the use of polarimetric radar is presented. The data volume created by the polarimetric radar is processed to identify the type of hydrometeors in each range cell. For each vertical column, the maximum height of the graupel is compared to the lowest height of ice crystals in the volume. In the event that the lowest height of ice crystals is ambiguous, the height of the temperature where ice crystals form, −10° C., may be substituted for the lowest height of the ice crystals. Probability density functions are applied to the height difference to determine the probability of cloud to ground lightning within the column. Lightning probability product data are displayed on a visualization system in a georeferenced manner providing georeferenced lightning warnings. A forecast of the probabilities of cloud-to-ground lightning is determined by simple translation using storm track properties. | 04-21-2011 |
| 20110102249 | RESOLUTION ENHANCEMENT SYSTEM (RES) FOR NETWORKED RADARS - Embodiments provide methods, systems, and/or devices that can provide measurements of the inherent reflectivity distribution from different look angles using N radar nodes. Doppler weather radars generally operate with very good spatial resolution in range and poor cross range resolution at farther ranges. Embodiments provide methodologies to retrieve higher resolution reflectivity data from a network of radars. In a networked radar environment, each radar may observe a common reflectivity distribution with different spreading function. The principle that the underlying reflectivity distribution should remain identical for all the nodes may be used to solve the inverse problem to determine intrinsic reflectivities. | 05-05-2011 |
| 20110102250 | SENSITIVITY ENHANCEMENT SYSTEM - Sensitivity is a critical aspect of weather radar systems. Such systems not only detect atmospheric patterns but often need to precisely measure weak precipitation echoes. Embodiments of the invention use pulse compression techniques to increase the sensitivity of weather radar systems. These techniques can include sending two waveforms into a region of interest, where the second waveform is designed based on knowledge about the first waveform. Such systems can enhance the sensitivity of weather radars about 10 dB. | 05-05-2011 |
| 20110234453 | WEATHER RADAR APPARATUS AND WEATHER OBSERVATION METHOD - According to one embodiment, a weather radar apparatus includes an antenna unit, a drive unit, an adjustment unit, and a control unit. The antenna unit is configured to transmit radio waves from a plurality of antenna elements, perform beam scan in a direction of elevation angle by phase control, and receive waves reflected by a weather target. The drive unit is configured to drive an elevation angle and an azimuth angle of an aperture plane of the antenna unit. The adjustment unit is configured to adjust an observation range and an observation elevation angle by the antenna unit and the drive unit in accordance with a plurality of observation modes. The control unit is configured to set the observation mode based on a received signal of the reflected waves. | 09-29-2011 |
| 20110267224 | STORM ADVECTION NOWCASTING - Embodiments of the invention can predict the ground location and intensity of storm cells for a future time using radar reflectivity data. In some embodiments, a Sinc approximation of the general flow equation can be solved to predict the ground location and intensity of a storm cell. In some embodiments, to solve the Sinc approximation the velocity of a storm cell can be estimated using various techniques including solving the flow equation in the frequency domain. The results can provide efficient prediction of storm cell position in nowcasting applications. | 11-03-2011 |
| 20110285582 | CYLINDRICAL POLARIMETRIC PHASED ARRAY RADAR - A radar data acquisition system including a polarimetric phased array antenna and a radar control and processing system. The polarimetric phased array antenna includes a support system, an array of panels and a switching network. One or more of the panels include a dual pole antenna for at least one of transmitting and receiving a dual polarization electromagnetic beam. The switching network communicates with the panels such that at least one of power, radar and control signals are sent to and received from one or more selected panels. The radar control and processing system communicates with the switching network for forming electromagnetic signals directed to one or more selected panels such that the selected panels form a dual polarization electromagnetic beam, and for reading signals sensed by one or more selected panels and for decoding the signals into an electronic radar output. | 11-24-2011 |
| 20110291879 | SYSTEM AND METHOD FOR DETECTING AND DETERMINING REMOTE ATMOSPHERIC ANOMALIES - A system for detecting and determining remote atmospheric anomalies is furnished with a movable-beam anemometry probe for measuring the orthogonal projection onto the sighting axis, named the radial component, of a relative velocity remotely, with respect to a remote air mass by Doppler frequency shift. The system comprises means for determining wind heterogeneities remotely, on the basis of at least two successive measurements, at one and the same remote point, of the radial component of the relative velocity of the system with respect to the remote air mass, by said anemometry probe, the line of sight of said anemometry probe comprising said remote point during said successive measurements. | 12-01-2011 |
| 20110298656 | RADAR SENSOR AND METHOD FOR DETECTING PRECIPITATION USING A RADAR SENOR - In the method for detecting precipitation using a radar sensor, the radar sensor emits a transmission signal, whose frequency is varied periodically in successive modulation ramps. Signals received by the radar sensor are analyzed to determine precipitation on the basis of two different criteria. In the method, a first criterion relates to signals which are received during a pass-through of a modulation ramp, and a second criterion relates to a comparison of signals which are received during a pass-through of at least two successive modulation ramps. | 12-08-2011 |
| 20110304501 | RADAR RETURN SIGNAL PROCESSING APPARATUS AND METHOD - According to one embodiment, a radar return signal processing apparatus includes a detector, an estimation unit and an extraction unit. The detector detects an average Doppler frequency, a spectrum width, and a received power of each of echoes, from a radar return signal obtained repeatedly at regular intervals. The estimation unit estimates an optimum mixed density function by learning modeling a shaped of the frequency spectrum by calculating repeatedly a sum of density functions of each of the echoes. The extraction unit extracts information on any one of the echoes included in the radar return signal, from a parameter of the estimated mixed density function. | 12-15-2011 |
| 20120013503 | METHOD FOR DETECTING PRECIPITATON USING A RADAR LOCATING DEVICE FOR MOTOR VEHICLES - A method for detecting precipitation using a radar locating device for motor vehicles, that is designed to locate objects in the surroundings of the vehicle, in which method a locating signal ( | 01-19-2012 |
| 20120032840 | METHOD FOR DETECTING PRECIPITATION USING A RADAR SENSOR SYSTEM FOR MOTOR VEHICLES - A method for detecting precipitation using a radar sensor system for motor vehicles designed for locating objects in the surroundings of the vehicle, in which method a locating signal that is a measure of the received power density as a function of the distance is integrated across a specific distance range lying below a limit distance for detecting precipitation. The locating signal is subjected to a filtering procedure before being integrated, the filtering procedure suppressing the peaks caused by located objects so that the filtered signal forms a measure of the noise level as a function of the distance. | 02-09-2012 |
| 20120133551 | METHOD OF CORRECTING REFLECTIVITY MEASUREMENTS AND RADAR IMPLEMENTING THIS METHOD - A method of correcting reflectivity measurements performed by a radar, such as a weather radar, includes a reflectivity measurement being associated with a resolution volume. The method includes acquiring the reflectivity measurement Z | 05-31-2012 |
| 20130002475 | OFF-DIAGONAL ELEMENT ECHO POWER ESTIMATOR FOR POLARIZATION WEATHER RADAR - Embodiments of the invention are directed to improving the sensitivity in polarimetric radar data. In particular, embodiments of the invention improve the sensitivity of such systems with improved post processing techniques. The sensitivity can be improved by using the co-polar elements (off diagonal elements) of the covariance matrix in power and/or reflectivity determinations. This can not only improve the sensitivity but may also enhance identification and improve quantitative estimates of precipitation. | 01-03-2013 |
| 20130135142 | OBJECT SENSING DEVICE - An object sensing device has a radiation part that radiates an exploring wave forward, a sensing part having a first sensing element and a second sensing element, wherein the first sensing element and the second sensing element sense a reflected wave of the exploring wave radiated by the radiation part; and a determination part. The determination part determines a rainfall state ahead based on an intensity of the reflected wave sensed by the first sensing element. The determination part determines existence or non-existence of an object positioned forward based on an intensity of the reflected wave sensed by the second sensing element. A visual-field restricting member is disposed in front of the first sensing element. The visual-field restricting member causes a visual field, in which the first sensing element senses the reflected wave, to differ from a visual field, in which the second sensing element senses the reflected wave. | 05-30-2013 |
| 20130141274 | ROTATIONAL PARABOLIC ANTENNA WITH VARIOUS FEED CONFIGURATIONS - A rotational antenna includes a stationary feed which is disposed in a substantially vertical orientation. A parabolic dish is rotationally mounted about the stationary feed in a state of being tipped with respect to the stationary, substantially vertically oriented feed. The rotational parabolic antenna may alternatively be provided with a rotating radio frequency (RF) and acoustic feed. Other embodiments are disclosed. | 06-06-2013 |
| 20130271313 | Robust Attenuation Correction System for Radar Reflectivity and Differential Reflectivity - Embodiments of the invention are directed toward attenuation correction of radar data. Atmospheric attenuation is a function of atmospheric water drop size and temperature. A number of different theoretical models are available to mathematically describe the particle drop shape that influences attenuation estimation. Each of these models has proven effective in different scenarios. It can be difficult, however, to predict which theoretical model to use. The total differential phase gives an idea of the attenuation, but it depends on the model. Moreover, the total attenuation along a rain path must be apportioned to different parts of the radar path in order to correct for attenuation along a radar path. Embodiments of this invention allows for a system to apportion the attenuation to different parts of the radar beam. Embodiments of the invention also allow for optimization of a number of different theoretical models for both drop size and temperature. | 10-17-2013 |
| 20140028495 | System and Method for Evaluating Wind Flow Fields Using Remote Sensing Devices - The present invention provides a system and method for obtaining data to determine one or more characteristics of a wind field using a first remote sensing device and a second remote sensing device. Coordinated data is collected from the first and second remote sensing devices and analyzed to determine the one or more characteristics of the wind field. The first remote sensing device is positioned to have a portion of the wind field within a first scanning sector of the first remote sensing device. The second remote sensing device is positioned to have the portion of the wind field disposed within a second scanning sector of the second remote sensing device. | 01-30-2014 |
| 20140028496 | APPARATUS AND METHOD FOR USING RADAR TO EVALUATE WIND FLOW FIELDS FOR WIND ENERGY APPLICATIONS - The present invention provides an apparatus and method for obtaining data to determine one or more characteristics of a wind flow field using one or more radars. Data is collected from the one or more radars, and analyzed to determine the one or more characteristics of the wind flow field. The one or more radars are positioned to have a portion of the wind flow field within a scanning sector of the one or more radars. | 01-30-2014 |
| 20140176362 | Systems and Methods For Inferring Localized Hail Intensity - The present invention is directed to system and method of processing meteorological data. The process comprises receiving a meteorological data corresponding to a geographic region from at least one meteorological data source for a selected time slice, with the meteorological data including radar reflectivity data. The system processes the meteorological data to derive probability of severe hail for points within the geographic region, processes the meteorological data to derive vertically integrated liquid for the points within the geographic region, and processes the meteorological data to derive enhanced echo tops for the points within the geographic region. The system processes the vertically integrated liquid and the enhanced echo tops to derive vertically integrated liquid density for the points within the geographic region and processes the probability of severe hail and the vertically integrated liquid density to derive derived hail index numbers for the points within the geographic region. The system generate data packets of the derived hail index numbers, with each of the derived hail index numbers corresponding to a local geographic point. | 06-26-2014 |
| 20140253370 | WEATHER RADAR APPARATUS, OBSERVATION SEQUENCE GENERATION METHOD, AND OBSERVATION SEQUENCE GENERATION PROGRAM - According to one embodiment, a weather radar apparatus includes an antenna apparatus, a signal processing apparatus, a data converter, a forecasting unit, a state determination unit, and radar controller. The antenna apparatus radiates a radar pulse and receives a reflection pulse. The signal processing apparatus calculates a reception intensity, a Doppler speed, and a speed width. The data converter calculates rainfall intensity data and wind direction/speed data. The forecasting unit generates forecasting data based on the rainfall intensity data and on the wind direction/speed data. The state determination unit generates an observation sequence. The radar controller controls the antenna apparatus in accordance with the observation sequence. | 09-11-2014 |
| 20140292563 | Radar System and Methods for Making and Using Same - A transmitter front end circuit is described. The transmitter front end circuit is provided with a radar transmitter port, a radar receiver port, a radar amplifier, a coupler, a radar antenna input and a signal director. The radar amplifier has a low power side receiving a transmit signal having a transmit waveform modulated onto a carrier frequency from the radar transmitter port, and a high power side outputting an amplified transmit waveform suitable for transmission to a radar antenna. The coupler is coupled to the high power side of the radar amplifier to sample the amplified transmit waveform. The radar antenna input is configured to receive return signals from a radar antenna. And, the signal director selectively directs the sample of the amplified transmit waveform and the return signals to the radar receiver port. | 10-02-2014 |
| 20140327570 | WEATHER RADAR - Weather radar for measuring radar signals in the GHz range with a receiver containing at least one signal path, the receiver comprising a receiving facility for an incoming radar signal, on which a test signal generated by a test signal generator is superimposed in a coupler, and a processing device to amplify, filter and convert both signals to lower frequencies, wherein for filtering a matched filter is provided, and with an evaluation device in which calibration parameters of the signal path are derived from the test signal for the frequency of the test signal in order to determine the signal strength of the received radar signal, wherein the test signal is superimposed with at least one frequency differing from the frequency of the radar signal, so that the radar signal and the test signal are processed separately from one another by the evaluation device, and the calibration parameters of the signal path for the frequency of the radar signal are determinable from the test signal through a modeling of the frequency dependence of the calibration parameters for frequencies around those of the radar signal. | 11-06-2014 |
| 20140333475 | METHOD AND ARRANGEMENT FOR REMOVING GROUND CLUTTER - A digital radar receiver generates the input signal which is a stream of complex numbers. The input signal is rearranged and sorted by measurement volumes, resulting in Doppler data vectors. Doppler data vectors are filtered using a number of different digital filters. The output Doppler data vectors of the filters together with the original Doppler data vector are the candidate signals. Each candidate signal is analyzed using several criteria in order to find the one signal which is most likely to be caused by precipitation and has the ground clutter removed by the filtering. The selected signal is then used to calculate the meteorological products. The selected signal is also used to derive a velocity value or velocity distribution while taking into account the effects of the filtering performed earlier. | 11-13-2014 |
| 20150029055 | ANTENNA AND METHOD OF MANUFACTURING THE ANTENNA - A slot array antenna where slots are arrayed in two directions is provided for suppressing occurrence of side lobes. An antenna includes a radiation waveguide part and probes. The radiation waveguide part has two sheets of metal plates facing each other and outwardly radiates a radio wave from a plurality of slots formed in one of the metal plates. Each probe is arranged for every slot to extend inward of the radiation waveguide part from the face where the slots are formed, and changes a transmission mode of the radio wave within the radiation waveguide part. The slots are narrow and arranged at fixed intervals in both a longitudinal direction and a lateral direction of the slots. The probe is disposed for every slot, on either side of the slot in the lateral direction. Between the adjacent slots, the probes are disposed on the opposite sides in the lateral direction. | 01-29-2015 |
| 20150061929 | METEOROLOGICAL OBSERVATION SYSTEM USING VEHICLES - Disclosed herein is a meteorological observation system using vehicles. The meteorological observation system using vehicles includes a meteorological observation device embedded in each of the vehicles and configured to periodically detect surrounding weather information and to photograph weather conditions, the vehicle configured to run on a road using radar devices for detecting the front and right and left sides of the vehicle, that is, sensors for supporting driving and prevent a collision, and to provide mobility to the meteorological observation device, a meteorological server configured to collect pieces of the weather information from the meteorological observation devices moving in respective areas through wireless communication and to provide the pieces of weather information to a meteorological observation center, the meteorological observation center configured to use information, received from the meteorological server, as statistical data or meteorological observation and forecast data. | 03-05-2015 |
| 20150070208 | WEATHER RADAR AND WEATHER OBSERVATION METHOD - According to one embodiment, weather radar includes first antenna unit, second antenna unit, transmitter and receiver. First antenna electronically scans first area of observation space with first transmission beams. Second antenna electronically scans second area whose slant range is shorter than that of first area with second transmission beams of wider width than first transmission beams. Transmitter transmits radio wave to first area from first antenna with first transmission beams and transmits radio wave to second area from second antenna with second transmission beams. Receiver forms reception beams with first antenna to receive reflected wave from first area and reflected wave from second area with reception beams. | 03-12-2015 |
| 20150145717 | INTEGRATED RAINFALL ESTIMATION METHOD USING X-BAND DUAL-POLARIMETRIC RADAR MEASUREMENT DATA - An integrated rainfall calculation method using X-band dual-polarimetric radar measurement data includes a precipitation classification step of classifying hydrometeors into four types of snow, rain/snow, rain and non-meteorological target through a fuzzy logic technique using a correlation coefficient (cross correlation coefficient, ρ | 05-28-2015 |
| 20150145718 | RADAR WEATHER DATA SIGNAL PROCESSING METHOD AND SIGNAL PROCESSING MODULE - Disclosed is a radar weather data signal processing module comprising: a pulse compression unit for pulse-compressing a received weather signal; a correlation coefficient calculation unit for calculating a correlation coefficient on the basis of the pulse-compressed weather signal; and a weather variable calculation unit for calculating a weather variable on the basis of the calculated correlation coefficient. | 05-28-2015 |
| 20160054439 | Phased Array Antenna Using Stacked Beams in Elevation and Azimuth - A radar system uses a rotating antenna array having rows that display dispersive properties while feeding multiple radiating elements. In some embodiments, the radiating elements are dual polarized. In at least one embodiment, beam spoiling may be used to generate an unfocused transmit beam that covers an entire elevation range of interest. Digital beam forming may be used during a receive mode to achieve a stack of narrow-width receive beams in elevation. Frequency scanning may also be used to achieve stacked beams in azimuth. | 02-25-2016 |
| 20160061945 | CLUTTER SUPPRESSING DEVICE AND RADAR APPARATUS PROVIDED WITH THE SAME - A clutter suppressing device for suppressing echo data of static clutter components indicating reflection waves caused by radar transmission signals reflecting on a static object is provided. The device includes a static clutter component suppressor configured to receive reception signals containing the static clutter components, and suppress the static clutter components, a reference data memory configured to store, as reference data, echo data of the reception signals obtained in fine weather and in which the static clutter components are suppressed by the static clutter component suppressor, and a rain component extracting module configured to extract echo data indicating rain components contained in the reception signals, by removing the reference data stored in the reference data memory from echo data of the reception signals obtained in rainy weather and in which the static clutter components are suppressed by the static clutter component suppressor. | 03-03-2016 |
| 20160131758 | WEATHER RADAR WITH BRIGHT BAND SUPPRESSION - This disclosure is directed to methods, devices, and systems for generating a weather radar output with bright band suppression. In one example, a method includes determining, for each of several portions of a vertical column from a weather radar signal, a reflectivity range selected from a highest reflectivity range and one or more lower reflectivity ranges. The method further includes determining, in response to determining that portions of the vertical column are in the highest reflectivity range, whether a combination of the reflectivity ranges of the portions of the vertical column meet criteria indicative of high-reflectivity stratiform weather. The method further includes generating, in response to determining that the combination of the reflectivity ranges of the portions of the vertical column meet the criteria indicative of high-reflectivity stratiform weather, a weather radar output that indicates each of the portions of the vertical column as associated with one of the lower reflectivity ranges. | 05-12-2016 |
| 20160154101 | MATCHING SYSTEM BETWEEN CONVECTIVE CELL IN WEATHER RADAR IMAGE AND LIGHTNING AND CONTROL METHOD THEREOF | 06-02-2016 |
| 20160252614 | METEOROLOGICAL RADAR SYSTEM AND METHOD AND DEVICE FOR PROCESSING METEOROLOGICAL INFORMATION | 09-01-2016 |
| 20090066563 | Method and Apparatus for Correcting Weather data, and Computer Program Product - The invention relates to a method, an apparatus and a computer program product for correcting the weather data of radial speed, spectral width and/or differential reflectivity which have been acquired from radar echo data recorded by a ground-based, radar-based remote-sensing appliance ( | 03-12-2009 |
| 20100302094 | SYSTEMS AND METHODS FOR USING NEXRAD INFORMATION TO VERIFY WEATHER RADAR INFORMATION - Systems and methods distinguish weather radar returns from terrain radar returns. An exemplary embodiment receives a radar return from a weather radar system on board an installation vehicle, receives ground-based weather radar information, compares a location of the radar return received from the onboard weather radar system with a corresponding location in the received ground-based, and determines that the radar return received from the onboard weather radar system is a weather radar return when a location in the received ground-based weather radar information indicates a presence of weather at the location of the radar return. | 12-02-2010 |
| 20110074624 | SYSTEMS AND METHODS FOR PREPARING GROUND-BASED WEATHER RADAR INFORMATION FOR USE IN AN INSTALLATION VEHICLE - Systems and methods prepare ground-based supplemental weather radar information for integration with onboard weather radar information. An exemplary embodiment receives ground-based weather radar information from a ground-based weather radar station, the ground-based weather radar information referenced in a first coordinate system; generates supplemental weather radar information from the received ground-based weather radar information, wherein the supplemental weather radar information is referenced to a second coordinate system based upon at least latitude and longitude; and communicates the supplemental weather radar information, wherein the communicated supplemental weather radar information is integrated with weather radar information of an onboard weather radar system of an installation vehicle. | 03-31-2011 |
| 20110291878 | ROTATIONAL PARABOLIC ANTENNA WITH VARIOUS FEED CONFIGURATIONS - A rotational antenna includes a stationary feed which is disposed in a substantially vertical orientation. A parabolic dish is rotationally mounted about the stationary feed in a state of being tipped with respect to the stationary, substantially vertically oriented feed. The rotational parabolic antenna may alternatively be provided with a rotating radio frequency (RF) and acoustic feed. Other embodiments are disclosed. | 12-01-2011 |
| 20120086596 | SYSTEM AND METHOD FOR GENERATING DERIVED PRODUCTS IN A RADAR NETWORK - The present invention relates to systems and methods of measuring atmospheric conditions using networked radar systems. A processor receives sensed data from the radar nodes of the network to determine weather conditions within the atmospheric region measured by network. Preferred embodiments use a velocity processor to determine the velocity of the atmosphere in real time for display. | 04-12-2012 |
| 20130321200 | WIDE BAND CLEAR AIR SCATTER DOPPLER RADAR - Systems and methods for measuring wind speed and direction in clear air conditions using a wide band Doppler radar in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, a wide band Doppler radar system includes an antenna assembly includes at least one transmit antenna and at least one receive antenna; a transceiver connected to the antenna assembly configured to transmit a radar beam includes a transmit signal on a Ka-band carrier frequency and receive a backscattered radar beam includes a carrier frequency that is frequency shifted relative to the transmitted Ka-band carrier frequency of the backscattered radar beam; a data acquisition system connected to the transceiver configured to estimate a wind velocity vector by calculating a Doppler shift between at least one transmitted radar beam and at least one received backscattered radar beam. | 12-05-2013 |
| 20140203961 | Debris Examination Using Ballistic and Radar Integrated Software - A method is provided for analyzing debris events after a launch of a rocket-propelled vehicle. Radar and Doppler data of the launch of the rocket-powered vehicle is collected for a period of time. Atmospheric conditions are determined at the time of launch. A trajectory of the rocket-propelled vehicle is determined during ascent. The collected radar and Doppler data is aligned and calibrated. A first portion of the collected radar and Doppler data is processed with a first means for assessing and characterizing debris. In parallel with the first portion of the collected radar and Doppler data, a second portion of the collected radar and Doppler data is processed with a second means for assessing and characterizing debris. Assessed and characterized debris is identified that may be a threat to the vehicle. And, reports of the identified debris are generated. | 07-24-2014 |
| 20140327569 | RADAR WEATHER DETECTION FOR A WIND TURBINE - A radar system for a wind turbine is provided. The radar system comprises a first radar unit ( | 11-06-2014 |
| 20080278371 | METHODS AND SYSTEMS FOR REDUCING ACQUISITION TIME IN AIRBORNE WEATHER RADAR - An airborne weather radar system and method. The method includes serially generating and transmitting first and second radar pulses having non-overlapping frequency ranges, receiving reflected echoes from the transmitted radar pulses in parallel, and processing the received echoes into a usable form. In an alternative embodiment, the method also includes serially transmitting at least one additional radar pulse having an additional frequency range that does not overlap with the frequency ranges of previously transmitted radar pulses in the serial transmission. The system includes a radar processor configured to serially generate a first control signal for a first radar pulse having a first frequency range and a second control signal for a second radar pulse having a second frequency range that does not overlap with the first frequency range. The radar processor also includes a second component configured to process received echoes in parallel into a usable form. | 11-13-2008 |
| 20080291082 | Method for detecting atmospheric turbulence by an embedded electromagnetic sensor, notably on board an aircraft - An aim of the invention is to allow the detection of turbulence in the absence of tracers. A radar is embedded aboard an aircraft ( | 11-27-2008 |
| 20080309549 | METHOD FOR STORING MEASUREMENTS MADE BY A RADAR - The present invention relates to a method for storing measurements of a given type made by a radar, each measurement having been made at a position in a given coordinate system. The method comprises a step of accessing a structured data storage space, each location of which is addressable by a pair of positive integers and each location of which is able to store at least one evolution profile of the measurements of the given type as a function of altitude. It also comprises a meshing step which associates a ground position with a pair of positive integers allowing a location to be addressed. The method also comprises a step of modifying the content of the location with the pair of integers as its address by storing there an evolution profile such that for each ground position sufficiently close to the position associated with the pair and for which a measurement has been made at a certain altitude, the evolution profile provides approximately the measurement made at this altitude. | 12-18-2008 |
| 20090189802 | SYSTEM AND METHOD FOR USING IRIDIUM SATELLITE SIGNALS FOR METEOROLOGICAL MEASUREMENTS - A method for obtaining weather related information for a portion of the Earth's atmosphere between a mobile platform traversing over a predetermined surface portion of the Earth, and at least one Iridium satellite from the Iridium satellite constellation. The method involves modifying at least one Iridium satellite from a constellation of Iridium satellites to include time and location information in wireless signals that are transmitted in real time by the one satellite. The mobile platform receives the wireless signals from the one Iridium satellite. An occultation system carried on the mobile platform analyzes the time and position information, in addition to location information pertaining to a real time location of the mobile platform, and to derive real time atmospheric weather related information for a geographic area between the mobile platform and the one Iridium satellite. | 07-30-2009 |
| 20090219197 | SYSTEMS AND METHODS FOR SUPPLEMENTAL WEATHER INFORMATION PRESENTATION ON A DISPLAY - An embodiment of the supplemental weather display system presents supplemental weather information on a display in a craft. An exemplary embodiment receives the supplemental weather information from a remote source, determines a location of the supplemental weather information relative to the craft, receives weather information from an on-board radar system, and integrates the supplemental weather information with the weather information received from the on-board radar system. | 09-03-2009 |
| 20090273510 | SYSTEM AND METHOD USING AIRBORNE RADAR OCCULTATION FOR MEASURING ATMOSPHERIC PROPERTIES - A method for estimating an atmospheric condition existing between a portion of the Earth's surface and an airborne mobile platform travelling over the portion of the Earth's surface. The method may involve emitting a radar signal beam toward the Earth's surface from the mobile platform and receiving back at least a portion of the radar signal beam reflected from the Earth's surface. The time of flight information of the radar signal beam is analyzed as a function of elevation angle to determine a specific time of flight value associated with a specific elevation angle of the radar signal beam. The specific time of flight value is used to determine a refractivity of the atmosphere through which the radar signal beam and the reflected radar signal has passed. The refractivity is used to determine the atmospheric condition. | 11-05-2009 |
| 20090322594 | DISPLAY OF HIGH-CRUISE-ALTITUDE WEATHER - A method implementable in a weather-radar system of an aircraft, the weather-radar system configured to generate to a display device, in response to radar return information indicating reflectivity levels below a predetermined reflectivity threshold, an image in a first presentation format. The method includes determining if the altitude of the aircraft is above a predetermined threshold altitude, and, if the altitude of the aircraft is above the threshold altitude, displaying, in response to radar return information indicating reflectivity levels below the predetermined reflectivity threshold, the image in a second presentation format different from the first presentation format. | 12-31-2009 |
| 20100019958 | SYSTEMS AND METHODS FOR LOCATION-BASED DISCRIMINATION OF TURBULENCE - Systems and methods differentiate weather, such as storm cells and/or turbulence regions, based on location relative to a planned flight path of an aircraft. An exemplary embodiment compares a location of the weather with a location of a region of space corresponding to the planned flight path of the aircraft. In response to the location of the weather region being outside of the region of space, an icon is presented on a display corresponding to the weather using a first icon format. In response to location of the weather being within the region of space, the icon corresponding to the weather is presented on the display using a second icon format, the second icon format different from the first icon format. | 01-28-2010 |
| 20100052978 | METHOD AND APPARATUS FOR MAKING AIRBORNE RADAR HORIZON MEASUREMENTS TO MEASURE ATMOSPHERIC REFRACTIVITY PROFILES - A method for determining a refractivity profile of an atmosphere of the Earth. The method may involve: generating radar signals from a radar device located above the Earth's surface toward the Earth's surface; measuring a time of flight and a reflected intensity of reflected radar signals received back at the radar device; using the measured time of flight and the reflected intensity of the reflected radar signals received by the radar device to determine a distance to a radar horizon where the radar signals are tangent to the Earth's surface; and using the distance to the radar horizon to determine a refractivity profile of the atmosphere through which the radar signals and the reflected radar signals have travelled. | 03-04-2010 |
| 20100103029 | ENHANCED ALERTING OF CHARACTERISTIC WEATHER HAZARDS - A method of providing weather radar images to a flight crew of an aircraft includes obtaining raw volumetric radar data corresponding to at least one signal reflected off of a weather system. Based on the radar data, the weather system is computationally classified as being of a first type of a plurality of weather-system types. After classifying the weather system, the radar data is image processed, the image processing yielding an image representing the weather system and corresponding to the first weather-system type. The image is displayed on a display device. | 04-29-2010 |
| 20100109942 | Method for Processing Measured Vertical Profiles of the Power of the Echoes Returned Following a Transmission of Radar Signals - The method processes measured vertical profiles of the power of the echoes returned following a transmission of radar signals, each measured vertical profile being a function of the sweep angle of the radar beam and associated with a given pointing angle/distance box pair of the radar beam. The method generates a synthetic vertical profile of the power of the echoes returned by the ground only, and includes, for each measured vertical profile: superposition of the synthetic vertical profile on the measured vertical profile in question, for various values of the sweep angle, calculation of the error that exists between the measured vertical profile and the synthetic vertical profile, for each sweep angle value in question, and an exclusion, from the measured vertical profile, of the values for which the calculated error is less than a given threshold, in order to generate a resultant vertical profile with no ground echoes. | 05-06-2010 |
| 20100188283 | Method for Characterizing an Atmospheric Turbulence Using Representative Parameters Measured by Radar - The present invention relates to a method for characterizing an atmospheric turbulence by representative parameters measured by a radar. The emission beam of the radar carried by an aircraft scanning the zone of the turbulence, a measured parameter being the total variance of the velocity of the turbulence σ | 07-29-2010 |
| 20100194628 | SYSTEMS AND METHODS FOR DISPLAYING RADAR-MEASURED TURBULENCE INTENSITY ON A VERTICAL DISPLAY - Weather radar detecting systems and methods are operable to display a vertical view of intensities of turbulence regions. An exemplary embodiment has a radar operable to detect turbulence, a processing system operable to determine location and intensity of the detected turbulence, a three-dimensional (3-D) weather information database comprising of a plurality of voxels that is associated with a unique geographic location with respect to the aircraft wherein the information corresponding to the turbulence intensity is stored, and a display operable to display a vertical view of a selected vertical slice, wherein the displayed vertical view displays the determined turbulence intensity and the determined location of the turbulence. | 08-05-2010 |
| 20100201565 | ALERTING OF UNKNOWN WEATHER DUE TO RADAR ATTENUATION - A system and method for determining and displaying an unknown weather due to receiving maximum radar attenuation compensation using a three-dimensional memory. The system and method may also determine whether the flight plan conflicts with an unknown weather zone. The user is alerted to an unknown weather zone and any flight plan conflict with an unknown zone. The user is alerted to the unknown weather zone using displays, sounds, or words that can be generated based on a determined hazard level. | 08-12-2010 |
| 20100245164 | SYSTEMS AND METHODS FOR COLLECTING WEATHER INFORMATION USING AN AIRBORNE AIRCRAFT - Weather information recording systems and methods are operable to record information detected by airborne aircraft. An exemplary embodiment generates a trigger event corresponding to the presence of weather of interest, stores weather information collected by an aviation electronics system in a memory in response to generating the trigger event, and downloads the stored weather information to a remote memory. | 09-30-2010 |
| 20100245165 | SYSTEMS AND METHODS FOR ASSESSING WEATHER IN PROXIMITY TO AN AIRBORNE AIRCRAFT - Dynamic weather model systems and methods are operable to assess weather in proximity to an airborne aircraft. An exemplary embodiment receives a radar return from the weather, determines reflectivity information from the received radar return, retrieves a weather model from a weather model data base, compares the weather with the retrieved weather model and the determined reflectivity information, predicts a characteristic of the weather based upon the comparison of the weather and the weather model, and determines if the predicted characteristic is potentially hazardous to the airborne aircraft. The weather model is defined by at least one weather modeling algorithm, and is defined by at least one of a parameter and a variable parameter range residing in a weather characteristics database. | 09-30-2010 |
| 20100245166 | TURBULENCE PREDICTION OVER EXTENDED RANGES - Methods and systems for predicting turbulence. An exemplary system decomposes near-range reflectivity data into multiple adaptive, three-dimensional Gaussian component functions and decomposes turbulence data into multiple adaptive, three-dimensional Gaussian component functions. The multiple adaptive, three-dimensional Gaussian component functions may include parameters, such as center position, amplitude, and dimensional standard deviations that are determined adaptively to maximally match the measured reflectivity. The multiple adaptive, three-dimensional Gaussian component functions may include parameters adjusted to maximally match the measured turbulence data. | 09-30-2010 |
| 20100245167 | SYSTEMS AND METHODS FOR GAUSSIAN DECOMPOSITION OF WEATHER RADAR DATA FOR COMMUNICATION - Exemplary methods and systems provide for processing weather data received from a weather radar system. An exemplary embodiment receives radar reflectivity data, decomposes the received radar reflectivity data into multiple adaptive Gaussian component functions, selects at least one parameter from the decomposed Gaussian component functions, generates the compressed weather radar display data based on the at least one selected parameter, and communicates the weather radar display data from the craft. | 09-30-2010 |
| 20100302093 | SYSTEMS AND METHODS FOR AIRCRAFT TO AIRCRAFT EXCHANGE OF RADAR INFORMATION OVER LOW BANDWIDTH COMMUNICATION CHANNELS - Systems and methods communicate weather information between aircraft using low bandwidth communication transceivers. An exemplary embodiment receives weather information from a weather radar system on board a remote aircraft, processes the received weather information into weather radar image information that is displayable on at least a display, processes the weather radar image information into a reduced size dataset, and communicates the reduced size dataset to an installation aircraft over the low bandwidth communication channel, wherein the low bandwidth communication channel is generated by a low bandwidth communication transceiver on board the remote aircraft. | 12-02-2010 |
| 20100328143 | SYSTEMS AND METHODS FOR GENERATION OF COMPREHENSIVE AIRSPACE WEATHER CONDITION DISPLAY FROM SHARED AIRCRAFT SENSOR DATA BY A TRANSMITTING AIRCRAFT - Systems and methods communicate sensor data pertaining to detected weather between aircraft. An exemplary system has at least one sensor on a transmitting aircraft that is configured to detect weather and configured to output sensor data, and a transceiver that is configured to receive a query from a requesting aircraft for the sensor data and that is configured to transmit a signal with the sensor data for receipt by the requesting aircraft in response to receiving the query. Upon receipt by the requesting aircraft, the received sensor data of the transmitting aircraft may then be fused with sensor data of the requesting aircraft for a geographic region of interest to extend the effective sensor coverage and to resolve at least one of a location conflict and a severity conflict between the sensor data of the transmitting aircraft and the requesting aircraft. | 12-30-2010 |
| 20110001662 | PROCESS AND A DEVICE FOR AUTOMATICALLY DETERMINING METEOROLOGICAL CONDITIONS IN THE VICINITY OF AN AIRCRAFT - A process and a device for automatically determining meteorological conditions in the vicinity of an aircraft is disclosed. The device ( | 01-06-2011 |
| 20110057832 | Method for determining the angular aperture corresponding to the extent in a plane of an object seen by a radar antenna - The present invention relates to a method for determining the angular aperture corresponding to the extent in a plane of an object seen by a radar antenna, the object being situated at a given distance from the radar antenna. Echoes are measured in directions | 03-10-2011 |
| 20110148692 | METHODS AND SYSTEMS FOR DETECTION OF HAZARD TO AVIATION DUE TO CONVECTIVE WEATHER - Systems and methods for improving output of weather information. A weather radar system receives weather reflectivity values. A processing device stores the received weather reflectivity values into a three-dimensional buffer, calculates a sum of the reflectivity value stored in a column of cells within the three-dimensional buffer, and assigns a first hazard indication to the cells of the column when the result of the calculation is above a first threshold. A display device generates a weather display based on data stored in the three-dimensional buffer. The weather display includes a display icon associated with the hazard indication when a cell from the three-dimensional buffer has been selected for the weather display. | 06-23-2011 |
| 20110148693 | INFERENCE OF TURBULENCE HAZARD FROM PROXIMITY TO RADAR TURBULENCE MEASUREMENT - Systems and methods for conveying turbulence hazards to a flight crew. An exemplary weather radar system includes a three-dimensional buffer, a processor, and a display. The processor receives weather radar reflectivity values, stores the received weather radar reflectivity values into a three-dimensional buffer, generates and stores turbulence values into cells of the three-dimensional buffer based on the stored respective reflectivity values, and generates first display icons for cells that are located within a predefined threshold distance from a cell in the three-dimensional buffer that has been determined to include a turbulence value that is greater than a first threshold value. The display presents the first display icons when associated cells are selected for display from the three-dimensional buffer. | 06-23-2011 |
| 20110148694 | SYSTEMS AND METHODS FOR INFERING HAIL AND LIGHTNING USING AN AIRBORNE WEATHER RADAR VOLUMETRIC BUFFER - A weather radar system for improving output of potential lightning and hail weather conditions. An exemplary system includes a processor that receives and stores the weather radar reflectivity values into a three-dimensional buffer, receives an outside air temperature value, and determines freezing level based on the received outside air temperature value. The processor generates lightning icon(s) when a reflectivity value stored at cell(s) of the three-dimensional buffer above determined freezing level is greater than a first threshold amount. Also, the processor adds 1.6 km to the determined freezing level and generates hail icon(s) when a reflectivity value stored at cell(s) at the determined freezing level plus 1.6 km are greater than a second threshold amount. The display device displays the hail and lightning icons when an altitude value that corresponds to the cells associated with the generated lightning icons has been selected for display. | 06-23-2011 |
| 20110187588 | METHODS AND SYSTEMS FOR PRESENTING WEATHER HAZARD INFORMATION ON AN IN-TRAIL PROCEDURES DISPLAY - Systems and methods for improving situational awareness on an in-trails procedures display. A radar system transmits a radar signal and receives and stores weather radar reflectivity values into a three-dimensional buffer. A processor determines whether any of the stored weather reflectivity values indicate the presence of a weather hazard and generates one or more weather hazard icons based on the stored weather reflectivity values. An in-trail procedures display device displays the generated weather hazard icons. Wake vortex information for other aircraft is generated and outputted on the in-trail procedures display. Also, the processor receives a request for an altitude change and generates an alert when the aircraft is determined not to be cleared to transition to the requested altitude based on a projected transition, any existing weather hazards, wake vortices of proximate aircraft, and in-trail procedures. | 08-04-2011 |
| 20120139778 | SYSTEMS AND METHODS FOR IMPROVING RELEVANT WEATHER DETERMINATION - Systems and methods for improving relevant weather determination for aircraft at altitude. An exemplary system includes a weather radar component and memory that stores weather radar data in a three-dimensional (3D) buffer. A processor calculates vertically integrated reflectivity using the stored weather radar data at a predefined reference altitude at one or more locations from the aircraft. The processor then adjusts a lower boundary of a relevant weather envelope from a first value to a second value, if the vertically integrated reflectivity is greater than a predefined threshold. The range of the adjusted lower boundary of the envelope is associated with the weather radar data having the calculated vertically integrated reflectivity greater than the predefined threshold. A display device displays the weather radar data located within the envelope in a first manner and displays the weather radar data located outside of the envelope in a second manner. | 06-07-2012 |
| 20120139779 | METHOD OF CORRECTING REFLECTIVITY MEASUREMENTS BY ISOTHERM DETECTION AND RADAR IMPLEMENTING THE METHOD - A method of correcting the reflectivity measurements performed by a radar such as a weather radar, a reflectivity measurement being associated with a resolution volume includes analyzing the current resolution volume to determine whether the plane representing the 0° C. isotherm passes through it. When the plane representing the 0° C. isotherm passes through the current resolution volume, the volume is split into two parts lying on either side of said plane, the attenuation associated with the resolution volume is determined by taking into account the contribution of each of the parts to the measured reflectivity. The reflectivity associated with the current resolution volume is corrected using the attenuation thus determined. An onboard weather radar implements the method. | 06-07-2012 |
| 20120154209 | SYSTEMS AND METHODS FOR PREDICTING LOCATIONS OF WEATHER RELATIVE TO AN AIRCRAFT - Systems and methods for predicting when a weather anomaly (e.g., convective cell) will intersect with an aircraft. Direction of movement and velocity information for at least one weather anomaly are received at a processor from a radar system. An intercept point for the at least one weather anomaly is determined based on the received location, direction of movement and velocity information and location and current speed information for the aircraft. Then, a first indicator based on the intercept point is displayed on a display device. | 06-21-2012 |
| 20120212367 | METHODS AND SYSTEMS FOR IDENTIFYING HAZARDOUS FLIGHT ZONE AREAS ON A DISPLAY - Systems and methods for representing a weather hazard without also including a large percentage of non-hazard area. An exemplary system includes a memory that stores radar reflectivity data in a three-dimensional buffer, a display device and a processor that is in data communication with the memory and the display device. The processor receives a two-dimensional shape based on a portion of the data stored in the three-dimensional buffer, then finds a center of the shape. Next the processor finds the furthest away point of the shape in a plurality of regions sharing the center as a common point and generates a polygon based on the furthest away points. The display device displays the generated polygon. The shape is associated with hazardous weather information determined from the radar reflectivity data stored in the three-dimensional buffer. The display device is an aircraft weather radar display. | 08-23-2012 |
| 20120249365 | METHOD AND SYSTEM FOR GENERATING WEATHER AND GROUND REFLECTIVITY INFORMATION - A method, system, and computer program product for storing weather radar return data into a three-dimensional buffer. The system located on an aircraft includes a radar system that transmits a radar signal and generates a radar measurement as a result of radar return of the transmitted radar signal. A three-dimensional buffer includes a plurality of storage locations. A processor generates or updates a reflectivity value in storage locations in the three-dimensional buffer based on the generated radar measurement, a previously stored reflectivity value for the storage location, and uncertainty parameters. The uncertainty parameters of normalized radar cross section for ground elements are initialized based on a type of ground associated with each of the elements. The uncertainty parameters for weather reflectivity are initialized based on a priori information. The generated reflectivity values are stored in the three-dimensional buffer according to the storage locations. | 10-04-2012 |
| 20120268319 | AIR-TO-GROUND ANTENNA - A directional antenna is disclosed. The directional antenna may include a support structure for defining a support surface; a first antenna stack positioned on the support surface, the first antenna stack having multiple antenna elements oriented in a first orientation, allowing the first antenna stack to concentrate radiations in a first direction; a second antenna stack positioned on the support surface, the second antenna stack having multiple antenna elements oriented in a second orientation, the second orientation being rotated a predetermined angle with respect to the first orientation, allowing the second antenna stack to concentrate radiations in a second direction different from the first direction; and a controller configured to selectively activate at least one of the first antenna stack or the second antenna stack to steer the radiations of the directional antenna in different directions without physical/mechanical movement of the antenna stacks. | 10-25-2012 |
| 20120280857 | HORIZON SCANNING SYSTEM FOR A ROTARY WING AIRCRAFT INCLUDING SENSORS HOUSED WITHIN A TUBERCLE ON A ROTOR BLADE - A rotary wing aircraft, a rotor blade and a horizon scanning system are provided. The rotary wing aircraft, for example, may include, but is not limited to, a mast, an engine configured to provide rotational force to the mast and a controller. The rotary wing aircraft may further include a rotor blade connected to the mast having a leading edge, a plurality of tubercles positioned on the leading edge of the rotor blade, and a sensor housed within at least one of the plurality tubercles communicatively connected to the controller. | 11-08-2012 |
| 20130009808 | Aircraft Weather Radar with Reduced Heading, Attitude and Range Artifacts - An avionic weather radar system tracks aircraft orientation with respect to acquired scan radar data to correct the display of the weather radar data for range distortion and orientation changes of the aircraft between radar acquisition and display, reducing image artifacts. | 01-10-2013 |
| 20130234884 | SYSTEM AND METHOD TO IDENTIFY REGIONS OF AIRSPACE HAVING ICE CRYSTALS USING AN ONBOARD WEATHER RADAR SYSTEM - Systems and methods of detecting type I ice crystals using an aircraft's onboard weather radar system are disclosed. An exemplary embodiment identifies radar returns having a return level signal strength less than a radar return sensitivity threshold level, determines if at least one of a weather condition and a flight condition concurrently exists with the identified radar returns having the return level signal strength less than the radar return sensitivity threshold level, and identifies a region of airspace potentially having type I ice crystals when the at least one of the weather condition and the flight condition concurrently exists with the identified radar returns having the return level signal strength less than the radar return sensitivity threshold level. | 09-12-2013 |
| 20130328715 | MILLIMETER WAVE RADAR SYSTEM FOR AND METHOD OF WEATHER DETECTION - A system and method relates to a weather detection system using millimeter wave radar data. Processing electronics receives millimeter wave radar (MMWR) data and senses a presence of weather spatial extent using return strength data associated with the MMWR data. The processing electronics uses spectral width data associated with the MMWR data to assign a level to the weather in the spatial extent. | 12-12-2013 |
| 20140118188 | METHODS AND SYSTEMS FOR PRESENTING WEATHER HAZARD INFORMATION ON AN IN-TRAIL PROCEDURES DISPLAY - Systems and methods for improving situational awareness on an in-trails procedures display. A radar system transmits a radar signal and receives and stores weather radar reflectivity values into a three-dimensional buffer. A processor determines whether any of the stored weather reflectivity values indicate the presence of a weather hazard and generates one or more weather hazard icons based on the stored weather reflectivity values. An in-trail procedures display device displays the generated weather hazard icons. Wake vortex information for other aircraft is generated and outputted on the in-trail procedures display. Also, the processor receives a request for an altitude change and generates an alert when the aircraft is determined not to be cleared to transition to the requested altitude based on a projected transition, any existing weather hazards, wake vortices of proximate aircraft, and in-trail procedures. | 05-01-2014 |
| 20140159949 | AIRCRAFT COMPRISING AN ONBOARD WEATHER RADAR ANTENNA PROVIDED WITH INCLINED PANELS - An aircraft comprising a fuselage and a radome fixed to the fuselage. The radome defines a housing and the fuselage comprises a sealed bulkhead closing the housing. A weather radar antenna comprises a main panel. A plurality of peripheral panels are arranged around the main panel, inclined from a planar surface of the main panel and located on the same side of the planar surface. The housing contains the antenna which is mounted on the fuselage through a mechanical support fixed to the fuselage and to the weather radar antenna on the same side of the planar surface as the peripheral panels. A bird strike shield is located between the antenna and the sealed bulkhead. The shield comprises a dome with a top and a base, the base being fixed to the aircraft fuselage. An opening is formed at the top of the dome through which the mechanical support passes. | 06-12-2014 |
| 20140361923 | SYSTEM AND METHOD OF DISPLAYING CONVECTIVE WEATHER ON A WEATHER RADAR DISPLAY - A convective weather graphic element generator system generates graphic elements associated with severe convective weather for presentation on a display on an aircraft. An exemplary system employs a weather radar and a processing system. The processing system determines a value associated with the detected convective weather based on the received weather radar returns detected by the weather radar, compares the value associated with the detected convective weather with a threshold, and generates a graphic element for a region of airspace when the value associated with the detected convective weather exceeds the threshold. The display is configured to concurrently present the weather reflectivity information generated by the weather radar and the graphic element associated with the convective weather, wherein portions of both the presented graphic element and the presented weather reflectivity information of the corresponding area are concurrently visible on the display. | 12-11-2014 |
| 20140361924 | ON-BOARD METEOROLOGICAL RADAR HAVING A ROTATING ANTENNA - A meteorological radar installed on board an aircraft, including a mechanical support fixed to a bulkhead of a nose of the aircraft, wherein an antenna is mounted on the mechanical support to enable turning mobility around an axis of rotation. The antenna includes a pedestal, on which at least one blade, extending radially along the axis of rotation, is installed. A free side of the blade, along which a plurality of radiating elements is distributed, perceptibly has the shape of a portion of conic in a plane including the axis of rotation. Because the blade is mobile only in rotation along the axis of rotation, and the selection of the emission/reception direction is performed electronically, not mechanically, the space and length requirements of the meteorological radar are fixed, whether the meteorological radar is in operation or not, and are determined based on the eccentricity and parameter of the conic. | 12-11-2014 |
| 20160033641 | SYSTEM AND METHOD TO IDENTIFY REGIONS OF AIRSPACE HAVING ICE CRYSTALS USING AN ONBOARD WEATHER RADAR SYSTEM - Systems and methods of detecting type I ice crystals using an aircraft's onboard weather radar system are disclosed. An exemplary embodiment identifies radar returns having a return level signal strength less than a radar return sensitivity threshold level, determines if at least one of a weather condition and a flight condition concurrently exists with the identified radar returns having the return level signal strength less than the radar return sensitivity threshold level, and identifies a region of airspace potentially having type I ice crystals when the at least one of the weather condition and the flight condition concurrently exists with the identified radar returns having the return level signal strength less than the radar return sensitivity threshold level. | 02-04-2016 |
| 20160131739 | DISPLAY SYSTEM AND METHOD USING WEATHER RADAR SENSING - An enhanced vision method uses or an enhanced vision system includes an onboard weather radar system configured to improve angular resolution and/or resolution in range. The onboard weather radar system generates image data representative of the external scene topography of a runway environment associated with radar returns received by the onboard weather radar system. The radar returns are in an X-band or a C-band. The enhanced vision system also includes a display in communication with the onboard weather radar system and is configured to display an image associated with the image data that is generated by the onboard weather radar system. The enhanced vision system can also be used as an enhanced flight vision system. | 05-12-2016 |
| 20110140955 | SYSTEM FOR MEASURING TURBULENCE REMOTELY - A method of predicting turbulence that may involve receiving electromagnetic energy that has traveled along a path subject to the turbulence, with the turbulence altering the electromagnetic energy. A determination may be made as to the alteration caused by the turbulence by filtering the electromagnetic energy as it was received with a velocity of one of a transmitter of the electromagnetic energy or a receiver that received the electromagnetic energy. | 06-16-2011 |
| 20120092213 | GNSS ATMOSPHERIC ESTIMATION WITH FEDERATED IONOSPHERIC FILTER - Methods and apparatus are presented for estimating environmental parameters from GNSS signals in real time. Some embodiments estimate a float solution using a federated ionospheric filter. Some embodiments fix ambiguities for improved estimates. | 04-19-2012 |
| 20120119944 | GNSS ATMOSPHERIC ESTIMATION WITH AMBIGUITY FIXING - Methods and apparatus are presented for estimating environmental parameters from GNSS signals in real time. Some embodiments estimate a float solution using a federated ionospheric filter. Some embodiments fix ambiguities for improved estimates. | 05-17-2012 |
| 20130147659 | SYSTEM FOR DETECTING SEA-SURFACE WIND, USING SATELLITE OBSERVATION, AND A METHOD FOR DETECTING SEA-SURFACE WIND - Systems and methods are provided that involve obtaining emissivity and reflectivity by the ratio of the radiance temperature versus the sea level temperature as observed by a satellite, and may further calculate two reflectivity values observed or simulated by the vertical or horizontal polarized channels of microwave, and then estimate a surface roughness. Further, illustrative implementations may involve obtaining the regression relation expression between the surface roughness and the wind strength and then detecting the sea-surface wind, using the information observed by the satellite again. As such, the sea-surface wind information can be obtained through satellite observation, and the information can be utilized for preventive activities against disaster including typhoon, the energy industry including wind power and the fishery in quasi-real time. | 06-13-2013 |
| 20140300510 | WEATHER DETECTION USING SATELLITE COMMUNICATION SIGNALS - Disclosed is a satellite weather detection system that uses atmospheric precipitation density data. Subscribers detect the signal strength and signal-to-noise ratio of signals that are transmitted from the satellite. Upstream transmit power data is also collected, which is needed to achieve a given SNR at a gateway. The values of the downstream signal strength and signal-to-noise ratio data as well as the upstream transmit power data are normalized and compared with current atmospheric data. The data can be color coded and graphically displayed to show weather patterns. Location and velocity of high precipitation density cells can be tracked to predict movement of storms. | 10-09-2014 |
| 20090295626 | MARITIME CLIMATE INFORMATION SYSTEM AND METHOD FOR COLLECTING AND PROCESSING MARTIME CLIMATE INFORMATION - The present invention discloses a maritime climate information system and a method for collecting and processing the maritime climate information. The system is characterized in that the detecting device, the positioning device and the first maritime wireless network device are disposed on the first maritime vehicle, and respectively used to detect the climate information around the first maritime vehicle, and calculate the coordinate of the first maritime vehicle and transmit the climate information and the coordinate. Through the maritime network structure formed by the second maritime wireless network devices disposed on the second maritime vehicles, the operating interface of each maritime vehicle of this system receives the climate information and the coordinate, and displays an electronic map on which the climate information is displayed. By using this method, this system can provide more accurate and immediate maritime climate information. | 12-03-2009 |
| 342026000 |
Mounted on ship (EPO) | 1 |
| 20080211714 | Method of Measuring the Speed of Air by Doppler Radar - A method of measuring the speed of air in a zone of the atmosphere by the Doppler effect by means of a radar, the method comprising the steps of transmitting bursts of three pulses at different rates F | 09-04-2008 |
| 20090160700 | Monitoring and Mapping of Atmospheric Phenomena - A computerized system for mapping an atmospheric phenomenon in a geographic region. Multiple free-space electromagnetic communications links are previously distributed in the geographic region. The system includes an interface to monitoring mechanisms attached respectively to the free-space electromagnetic communications links. The monitoring mechanisms respectively monitor attenuation levels of the free-space electromagnetic communications links. A processor simultaneously processes the attenuation levels, and maps in the geographic region the atmospheric phenomenon. The simultaneous processing preferably applies a non-linear model which relates the attenuation levels the atmospheric phenomenon, and solves a tomographic problem based on the non-linear model and the attenuation levels. The tomographic problem is preferably solved by an interactive algorithm based on consecutive refinement and linear inversion at each iteration. Alternatively, an interpolation is performed based on respective inverse distance from the communications links. Preferably, the interpolation is further based on respective lengths of communications links. A data interface preferably provides to subscribers temporal information related to the atmospheric phenomenon within portions of the geographic region. | 06-25-2009 |
| 20090174596 | POLARIZATION-MODULATED TRANSMITTER FOR A WEATHER RADAR - Polarization modulated transmitter, in particular for a weather radar, with at least two signal paths ( | 07-09-2009 |
| 20090243917 | METHOD OF PROCESSING A RADAR IMAGE, OBTAINED IN PARTICULAR FROM AN AIRBORNE RADAR, WITH EVALUATION OF THE ALTITUDE OF THE 0ºC ISOTHERM - The invention targets a method of processing a radar image obtained from a radar. It comprises an automatic evaluation of the altitude of the isotherm at zero degrees Celsius, called zero isotherm, using a processing of the reflectivity information (rf(px)) conveyed by pixels (px) forming all or part of the radar image. | 10-01-2009 |
| 20090243918 | System and Method for Presenting Wind Speed Information - A system and method for presenting wind speed information in a manner so as to be easily understood and appreciated by viewers of televised weather report presentations and the like. Wind speed information is presented as two or three-dimensional wind speed contour lines, delineating geographic areas corresponding to different wind speeds, overlaid on a geographic map display either alone, or in combination with radar reflectivity information. Wind velocity information received from a weather radar system, such as NEXRAD, relative to the weather radar is converted to absolute wind speed information for display. | 10-01-2009 |
| 20090267826 | SYSTEM FOR MEASURING TURBULENCE REMOTELY - A system for detecting turbulence along a path that is subject to turbulence. The system may make use of at least one transmitter to transmit electromagnetic (EM) energy along the path and at least one receiver to receive the EM energy. At least one of the transmitter and the receiver moves along the path. The receiver may have an antenna responsive to incident EM energy to produce a received signal, and an input for accepting a velocity signal indicating a velocity that the receiver or the transmitter is moving. The receiver processes the received signal using the velocity signal to remove a shift associated with the received signal because of relative motion between a source of the EM energy and the receiver or transmitter that is moving along the path. Thus, the receiver determines an alteration of the EM energy caused by the turbulence and outputs a signal indicative of the turbulence. | 10-29-2009 |
| 20090295627 | Dual-polarization radar processing system using time domain method - Embodiments of the present invention provide for improved estimation of environmental parameters in a dual-polarization radar system. In some embodiments, environmental parameters can be estimated using a linear combination of data received in two orthogonal polarization states. In particular, embodiments of the invention improve ground clutter and noise mitigation in dual polarization radar systems. Moreover, embodiments of the invention also provide for systems to determine the differential reflectivity and/or the magnitude of the co-polar correlation coefficient and the differential phase in a dual polarization radar system. | 12-03-2009 |
| 20090315762 | Adaptive specific differential phase in dual-polarization radar - Systems and methods are provided for adaptively estimating the specific differential phase (K | 12-24-2009 |
| 20100026565 | METHOD FOR GENERATING A REPRESENTATION OF AN ATMOSPHERIC VORTEX KINEMATIC STRUCTURE - A method for generating a representation of a kinematic structure of an atmospheric vortex is provided. The method comprises receiving a plurality of signals from a Doppler radar. The signals are reflected at a plurality of pulse volumes. The method also comprises measuring a plurality of Doppler velocities based on the received signals. A plurality of scaled Doppler velocities are calculated representing the plurality of measured Doppler velocities, the radial distance between the Doppler radar and the pulse volume where the Doppler velocity is measured, and the distance between the radar and a first estimated atmospheric vortex center. The method also comprises generating a representation of the kinematic structure of the atmospheric vortex using the plurality of scaled Doppler wind velocity values. | 02-04-2010 |
| 20100117892 | METHOD FOR RADAR MONITORING OF WAKE TURBULENCE - The present invention relates to a method for detecting and grading the state and the evolution of wake turbulence caused by an aircraft, on the basis of the radar signals reflected by this turbulence, these signals being analyzed through analysis cells of given dimension in terms of distance and bearing. This method mainly comprises:
| 05-13-2010 |
| 20100164786 | Method of Characterizing the Convection Intensity of a Cloud, by a Meteorological Radar - The present invention relates to a method of characterizing the convection intensity of a cloud by a meteorological radar. | 07-01-2010 |
| 20100207809 | RADAR DEVICE AND RAIN/SNOW AREA DETECTING DEVICE - A radar device is disclosed. The radar device includes a radar antenna, from which detection signals are transmitted while the radar antenna being rotated, the radar device generating a radar image from reflection waves of the transmitted detection signals, a reception module for receiving the reflection waves of the detection signals, an inclination calculating module for calculating an inclination of level of the received signals that continue in a predetermined direction, the inclination being a rate of change in the received signal level per predetermined range in the predetermined direction, and a rain/snow reflection determining module for determining whether the received signals are reflection signals from at least one of rain and snow by using the inclination calculated by the inclination calculating module. | 08-19-2010 |
| 20100253574 | WEATHER RADAR AND WEATHER OBSERVATION METHOD - A weather radar includes an antenna unit of an active phased array system in which a plurality of antenna elements configured to transmit a radar pulse and receive a reflected pulse are arranged in a vertical direction, a transmission beam formation unit configured to divide an observation range in the elevation angle direction into a plurality of observation elevation angles, subdivide each observation elevation angle into a plurality of regions, assign a set of a plurality of regions not adjacent to each other to a pulse repetition interval (PRI), and form a fan-shaped transmission beam in the elevation angle direction for each of the regions in the set, and a reception beam formation unit configured to form a plurality pencil-shaped reception beams for each of the plurality of regions. | 10-07-2010 |
| 20100309041 | METHOD AND DEVICE FOR DETECTING PRECIPITATION BY RADAR - A method for detecting precipitation in a region monitored by radar beams includes ascertaining a first average power of a first backscattered radar signal, ascertaining a second average power of a second backscattered radar signal, and detecting an existence of a homogenous medium when the average powers conform. | 12-09-2010 |
| 20100328144 | WEATHER RADAR AND WEATHER OBSERVATION METHOD - A weather radar includes an antenna unit configured to transmit a radio wave from a plurality of antenna elements, and receive a reflected wave from a weather target by carrying out beam scanning in an elevation angle direction by phase control, a drive unit configured to control an elevation angle of an aperture of the antenna unit, and a controller configured to cause the antenna unit to carry out the beam scanning in a state where the aperture is faced to a point which presents a maximum range in the observational range by the drive unit, and direct, at a time point when the weather target is detected based on a received signal of the reflected wave, the aperture toward the weather target by the drive unit. | 12-30-2010 |
| 20110018757 | WEATHER RADAR APPARATUS AND RAINFALL RATE CALCULATION METHOD - According to one embodiment, a weather radar apparatus includes a transmitting/receiving unit configured to simultaneously transmit radar waves of a horizontally polarized wave and a vertically polarized wave and receive reflected waves, a signal processing unit configured to perform dual polarization observation based on a reception output from the transmitting/receiving unit and calculate a received power of each polarized wave, an observation parameter calculation unit configured to calculate, based on the received powers, a first observation parameter having a first spatial resolution, and a second observation parameter having higher correlation with a rainfall rate than that of the first observation parameter and a second spatial resolution lower than the first spatial resolution, and a rainfall rate calculation unit configured to synthetically determine the rainfall rate based on the first observation parameter and the second observation parameter. | 01-27-2011 |
| 20110050486 | DOPPLER RADAR APPARATUS AND METHOD OF CALCULATING DOPPLER VELOCITY - According to one embodiment, a Doppler radar apparatus includes a quadrature detection unit configured to quadrature-detect a received signal of a reflected pulse from an observation target, and generate time-series data including an in-phase component and a quadrature component, an interference judgment unit configured to judge whether an interference signal is mixed into the received signal based on the time-series data, a correction unit configured to correct a vector expressed by the in-phase component and the quadrature component such that variation with respect to time of a deviation angle of the vector continues when the interference judgment unit has judged that an interference signal is mixed into the received signal, and a calculation unit configured to calculate a Doppler velocity of the observation target based on an amount of variation with respect to time of the deviation angle of corrected vector. | 03-03-2011 |
| 20110063164 | WEATHER RADAR APPARATUS AND SIGNAL PROCESSING METHOD THEREOF - According to one embodiment, a weather radar apparatus includes a transmitting/receiving unit configured to transmit a radar wave to an observation target and receive a reflected wave, a distribution unit configured to distribute a received signal of the reflected wave to a main path and at least another path, an extraction unit configured to extract, from a signal of the other path, an interference wave signal extracted from another radio station, and a removing unit configured to remove the interference wave signal extracted from a signal of the main path. | 03-17-2011 |
| 20110090111 | METHOD AND APPARATUS FOR THE NOWCAST OF LIGHTNING THREAT USING POLARIMETRIC RADAR - A system and method for predicting the probability of cloud-to-ground lightning strikes, ‘frequent’, more than 2 strikes per minute on average, cloud to ground lightning strikes, and/or ‘numerous’, more than 4 strikes per minute on average, through the use of polarimetric radar is presented. The data volume created by the polarimetric radar is processed to identify the type of hydrometeors in each range cell. For each vertical column, the maximum height of the graupel is compared to the lowest height of ice crystals in the volume. In the event that the lowest height of ice crystals is ambiguous, the height of the temperature where ice crystals form, −10° C., may be substituted for the lowest height of the ice crystals. Probability density functions are applied to the height difference to determine the probability of cloud to ground lightning within the column. Lightning probability product data are displayed on a visualization system in a georeferenced manner providing georeferenced lightning warnings. A forecast of the probabilities of cloud-to-ground lightning is determined by simple translation using storm track properties. | 04-21-2011 |
| 20110102249 | RESOLUTION ENHANCEMENT SYSTEM (RES) FOR NETWORKED RADARS - Embodiments provide methods, systems, and/or devices that can provide measurements of the inherent reflectivity distribution from different look angles using N radar nodes. Doppler weather radars generally operate with very good spatial resolution in range and poor cross range resolution at farther ranges. Embodiments provide methodologies to retrieve higher resolution reflectivity data from a network of radars. In a networked radar environment, each radar may observe a common reflectivity distribution with different spreading function. The principle that the underlying reflectivity distribution should remain identical for all the nodes may be used to solve the inverse problem to determine intrinsic reflectivities. | 05-05-2011 |
| 20110102250 | SENSITIVITY ENHANCEMENT SYSTEM - Sensitivity is a critical aspect of weather radar systems. Such systems not only detect atmospheric patterns but often need to precisely measure weak precipitation echoes. Embodiments of the invention use pulse compression techniques to increase the sensitivity of weather radar systems. These techniques can include sending two waveforms into a region of interest, where the second waveform is designed based on knowledge about the first waveform. Such systems can enhance the sensitivity of weather radars about 10 dB. | 05-05-2011 |
| 20110234453 | WEATHER RADAR APPARATUS AND WEATHER OBSERVATION METHOD - According to one embodiment, a weather radar apparatus includes an antenna unit, a drive unit, an adjustment unit, and a control unit. The antenna unit is configured to transmit radio waves from a plurality of antenna elements, perform beam scan in a direction of elevation angle by phase control, and receive waves reflected by a weather target. The drive unit is configured to drive an elevation angle and an azimuth angle of an aperture plane of the antenna unit. The adjustment unit is configured to adjust an observation range and an observation elevation angle by the antenna unit and the drive unit in accordance with a plurality of observation modes. The control unit is configured to set the observation mode based on a received signal of the reflected waves. | 09-29-2011 |
| 20110267224 | STORM ADVECTION NOWCASTING - Embodiments of the invention can predict the ground location and intensity of storm cells for a future time using radar reflectivity data. In some embodiments, a Sinc approximation of the general flow equation can be solved to predict the ground location and intensity of a storm cell. In some embodiments, to solve the Sinc approximation the velocity of a storm cell can be estimated using various techniques including solving the flow equation in the frequency domain. The results can provide efficient prediction of storm cell position in nowcasting applications. | 11-03-2011 |
| 20110285582 | CYLINDRICAL POLARIMETRIC PHASED ARRAY RADAR - A radar data acquisition system including a polarimetric phased array antenna and a radar control and processing system. The polarimetric phased array antenna includes a support system, an array of panels and a switching network. One or more of the panels include a dual pole antenna for at least one of transmitting and receiving a dual polarization electromagnetic beam. The switching network communicates with the panels such that at least one of power, radar and control signals are sent to and received from one or more selected panels. The radar control and processing system communicates with the switching network for forming electromagnetic signals directed to one or more selected panels such that the selected panels form a dual polarization electromagnetic beam, and for reading signals sensed by one or more selected panels and for decoding the signals into an electronic radar output. | 11-24-2011 |
| 20110291879 | SYSTEM AND METHOD FOR DETECTING AND DETERMINING REMOTE ATMOSPHERIC ANOMALIES - A system for detecting and determining remote atmospheric anomalies is furnished with a movable-beam anemometry probe for measuring the orthogonal projection onto the sighting axis, named the radial component, of a relative velocity remotely, with respect to a remote air mass by Doppler frequency shift. The system comprises means for determining wind heterogeneities remotely, on the basis of at least two successive measurements, at one and the same remote point, of the radial component of the relative velocity of the system with respect to the remote air mass, by said anemometry probe, the line of sight of said anemometry probe comprising said remote point during said successive measurements. | 12-01-2011 |
| 20110298656 | RADAR SENSOR AND METHOD FOR DETECTING PRECIPITATION USING A RADAR SENOR - In the method for detecting precipitation using a radar sensor, the radar sensor emits a transmission signal, whose frequency is varied periodically in successive modulation ramps. Signals received by the radar sensor are analyzed to determine precipitation on the basis of two different criteria. In the method, a first criterion relates to signals which are received during a pass-through of a modulation ramp, and a second criterion relates to a comparison of signals which are received during a pass-through of at least two successive modulation ramps. | 12-08-2011 |
| 20110304501 | RADAR RETURN SIGNAL PROCESSING APPARATUS AND METHOD - According to one embodiment, a radar return signal processing apparatus includes a detector, an estimation unit and an extraction unit. The detector detects an average Doppler frequency, a spectrum width, and a received power of each of echoes, from a radar return signal obtained repeatedly at regular intervals. The estimation unit estimates an optimum mixed density function by learning modeling a shaped of the frequency spectrum by calculating repeatedly a sum of density functions of each of the echoes. The extraction unit extracts information on any one of the echoes included in the radar return signal, from a parameter of the estimated mixed density function. | 12-15-2011 |
| 20120013503 | METHOD FOR DETECTING PRECIPITATON USING A RADAR LOCATING DEVICE FOR MOTOR VEHICLES - A method for detecting precipitation using a radar locating device for motor vehicles, that is designed to locate objects in the surroundings of the vehicle, in which method a locating signal ( | 01-19-2012 |
| 20120032840 | METHOD FOR DETECTING PRECIPITATION USING A RADAR SENSOR SYSTEM FOR MOTOR VEHICLES - A method for detecting precipitation using a radar sensor system for motor vehicles designed for locating objects in the surroundings of the vehicle, in which method a locating signal that is a measure of the received power density as a function of the distance is integrated across a specific distance range lying below a limit distance for detecting precipitation. The locating signal is subjected to a filtering procedure before being integrated, the filtering procedure suppressing the peaks caused by located objects so that the filtered signal forms a measure of the noise level as a function of the distance. | 02-09-2012 |
| 20120133551 | METHOD OF CORRECTING REFLECTIVITY MEASUREMENTS AND RADAR IMPLEMENTING THIS METHOD - A method of correcting reflectivity measurements performed by a radar, such as a weather radar, includes a reflectivity measurement being associated with a resolution volume. The method includes acquiring the reflectivity measurement Z | 05-31-2012 |
| 20130002475 | OFF-DIAGONAL ELEMENT ECHO POWER ESTIMATOR FOR POLARIZATION WEATHER RADAR - Embodiments of the invention are directed to improving the sensitivity in polarimetric radar data. In particular, embodiments of the invention improve the sensitivity of such systems with improved post processing techniques. The sensitivity can be improved by using the co-polar elements (off diagonal elements) of the covariance matrix in power and/or reflectivity determinations. This can not only improve the sensitivity but may also enhance identification and improve quantitative estimates of precipitation. | 01-03-2013 |
| 20130135142 | OBJECT SENSING DEVICE - An object sensing device has a radiation part that radiates an exploring wave forward, a sensing part having a first sensing element and a second sensing element, wherein the first sensing element and the second sensing element sense a reflected wave of the exploring wave radiated by the radiation part; and a determination part. The determination part determines a rainfall state ahead based on an intensity of the reflected wave sensed by the first sensing element. The determination part determines existence or non-existence of an object positioned forward based on an intensity of the reflected wave sensed by the second sensing element. A visual-field restricting member is disposed in front of the first sensing element. The visual-field restricting member causes a visual field, in which the first sensing element senses the reflected wave, to differ from a visual field, in which the second sensing element senses the reflected wave. | 05-30-2013 |
| 20130141274 | ROTATIONAL PARABOLIC ANTENNA WITH VARIOUS FEED CONFIGURATIONS - A rotational antenna includes a stationary feed which is disposed in a substantially vertical orientation. A parabolic dish is rotationally mounted about the stationary feed in a state of being tipped with respect to the stationary, substantially vertically oriented feed. The rotational parabolic antenna may alternatively be provided with a rotating radio frequency (RF) and acoustic feed. Other embodiments are disclosed. | 06-06-2013 |
| 20130271313 | Robust Attenuation Correction System for Radar Reflectivity and Differential Reflectivity - Embodiments of the invention are directed toward attenuation correction of radar data. Atmospheric attenuation is a function of atmospheric water drop size and temperature. A number of different theoretical models are available to mathematically describe the particle drop shape that influences attenuation estimation. Each of these models has proven effective in different scenarios. It can be difficult, however, to predict which theoretical model to use. The total differential phase gives an idea of the attenuation, but it depends on the model. Moreover, the total attenuation along a rain path must be apportioned to different parts of the radar path in order to correct for attenuation along a radar path. Embodiments of this invention allows for a system to apportion the attenuation to different parts of the radar beam. Embodiments of the invention also allow for optimization of a number of different theoretical models for both drop size and temperature. | 10-17-2013 |
| 20140028495 | System and Method for Evaluating Wind Flow Fields Using Remote Sensing Devices - The present invention provides a system and method for obtaining data to determine one or more characteristics of a wind field using a first remote sensing device and a second remote sensing device. Coordinated data is collected from the first and second remote sensing devices and analyzed to determine the one or more characteristics of the wind field. The first remote sensing device is positioned to have a portion of the wind field within a first scanning sector of the first remote sensing device. The second remote sensing device is positioned to have the portion of the wind field disposed within a second scanning sector of the second remote sensing device. | 01-30-2014 |
| 20140028496 | APPARATUS AND METHOD FOR USING RADAR TO EVALUATE WIND FLOW FIELDS FOR WIND ENERGY APPLICATIONS - The present invention provides an apparatus and method for obtaining data to determine one or more characteristics of a wind flow field using one or more radars. Data is collected from the one or more radars, and analyzed to determine the one or more characteristics of the wind flow field. The one or more radars are positioned to have a portion of the wind flow field within a scanning sector of the one or more radars. | 01-30-2014 |
| 20140176362 | Systems and Methods For Inferring Localized Hail Intensity - The present invention is directed to system and method of processing meteorological data. The process comprises receiving a meteorological data corresponding to a geographic region from at least one meteorological data source for a selected time slice, with the meteorological data including radar reflectivity data. The system processes the meteorological data to derive probability of severe hail for points within the geographic region, processes the meteorological data to derive vertically integrated liquid for the points within the geographic region, and processes the meteorological data to derive enhanced echo tops for the points within the geographic region. The system processes the vertically integrated liquid and the enhanced echo tops to derive vertically integrated liquid density for the points within the geographic region and processes the probability of severe hail and the vertically integrated liquid density to derive derived hail index numbers for the points within the geographic region. The system generate data packets of the derived hail index numbers, with each of the derived hail index numbers corresponding to a local geographic point. | 06-26-2014 |
| 20140253370 | WEATHER RADAR APPARATUS, OBSERVATION SEQUENCE GENERATION METHOD, AND OBSERVATION SEQUENCE GENERATION PROGRAM - According to one embodiment, a weather radar apparatus includes an antenna apparatus, a signal processing apparatus, a data converter, a forecasting unit, a state determination unit, and radar controller. The antenna apparatus radiates a radar pulse and receives a reflection pulse. The signal processing apparatus calculates a reception intensity, a Doppler speed, and a speed width. The data converter calculates rainfall intensity data and wind direction/speed data. The forecasting unit generates forecasting data based on the rainfall intensity data and on the wind direction/speed data. The state determination unit generates an observation sequence. The radar controller controls the antenna apparatus in accordance with the observation sequence. | 09-11-2014 |
| 20140292563 | Radar System and Methods for Making and Using Same - A transmitter front end circuit is described. The transmitter front end circuit is provided with a radar transmitter port, a radar receiver port, a radar amplifier, a coupler, a radar antenna input and a signal director. The radar amplifier has a low power side receiving a transmit signal having a transmit waveform modulated onto a carrier frequency from the radar transmitter port, and a high power side outputting an amplified transmit waveform suitable for transmission to a radar antenna. The coupler is coupled to the high power side of the radar amplifier to sample the amplified transmit waveform. The radar antenna input is configured to receive return signals from a radar antenna. And, the signal director selectively directs the sample of the amplified transmit waveform and the return signals to the radar receiver port. | 10-02-2014 |
| 20140327570 | WEATHER RADAR - Weather radar for measuring radar signals in the GHz range with a receiver containing at least one signal path, the receiver comprising a receiving facility for an incoming radar signal, on which a test signal generated by a test signal generator is superimposed in a coupler, and a processing device to amplify, filter and convert both signals to lower frequencies, wherein for filtering a matched filter is provided, and with an evaluation device in which calibration parameters of the signal path are derived from the test signal for the frequency of the test signal in order to determine the signal strength of the received radar signal, wherein the test signal is superimposed with at least one frequency differing from the frequency of the radar signal, so that the radar signal and the test signal are processed separately from one another by the evaluation device, and the calibration parameters of the signal path for the frequency of the radar signal are determinable from the test signal through a modeling of the frequency dependence of the calibration parameters for frequencies around those of the radar signal. | 11-06-2014 |
| 20140333475 | METHOD AND ARRANGEMENT FOR REMOVING GROUND CLUTTER - A digital radar receiver generates the input signal which is a stream of complex numbers. The input signal is rearranged and sorted by measurement volumes, resulting in Doppler data vectors. Doppler data vectors are filtered using a number of different digital filters. The output Doppler data vectors of the filters together with the original Doppler data vector are the candidate signals. Each candidate signal is analyzed using several criteria in order to find the one signal which is most likely to be caused by precipitation and has the ground clutter removed by the filtering. The selected signal is then used to calculate the meteorological products. The selected signal is also used to derive a velocity value or velocity distribution while taking into account the effects of the filtering performed earlier. | 11-13-2014 |
| 20150029055 | ANTENNA AND METHOD OF MANUFACTURING THE ANTENNA - A slot array antenna where slots are arrayed in two directions is provided for suppressing occurrence of side lobes. An antenna includes a radiation waveguide part and probes. The radiation waveguide part has two sheets of metal plates facing each other and outwardly radiates a radio wave from a plurality of slots formed in one of the metal plates. Each probe is arranged for every slot to extend inward of the radiation waveguide part from the face where the slots are formed, and changes a transmission mode of the radio wave within the radiation waveguide part. The slots are narrow and arranged at fixed intervals in both a longitudinal direction and a lateral direction of the slots. The probe is disposed for every slot, on either side of the slot in the lateral direction. Between the adjacent slots, the probes are disposed on the opposite sides in the lateral direction. | 01-29-2015 |
| 20150061929 | METEOROLOGICAL OBSERVATION SYSTEM USING VEHICLES - Disclosed herein is a meteorological observation system using vehicles. The meteorological observation system using vehicles includes a meteorological observation device embedded in each of the vehicles and configured to periodically detect surrounding weather information and to photograph weather conditions, the vehicle configured to run on a road using radar devices for detecting the front and right and left sides of the vehicle, that is, sensors for supporting driving and prevent a collision, and to provide mobility to the meteorological observation device, a meteorological server configured to collect pieces of the weather information from the meteorological observation devices moving in respective areas through wireless communication and to provide the pieces of weather information to a meteorological observation center, the meteorological observation center configured to use information, received from the meteorological server, as statistical data or meteorological observation and forecast data. | 03-05-2015 |
| 20150070208 | WEATHER RADAR AND WEATHER OBSERVATION METHOD - According to one embodiment, weather radar includes first antenna unit, second antenna unit, transmitter and receiver. First antenna electronically scans first area of observation space with first transmission beams. Second antenna electronically scans second area whose slant range is shorter than that of first area with second transmission beams of wider width than first transmission beams. Transmitter transmits radio wave to first area from first antenna with first transmission beams and transmits radio wave to second area from second antenna with second transmission beams. Receiver forms reception beams with first antenna to receive reflected wave from first area and reflected wave from second area with reception beams. | 03-12-2015 |
| 20150145717 | INTEGRATED RAINFALL ESTIMATION METHOD USING X-BAND DUAL-POLARIMETRIC RADAR MEASUREMENT DATA - An integrated rainfall calculation method using X-band dual-polarimetric radar measurement data includes a precipitation classification step of classifying hydrometeors into four types of snow, rain/snow, rain and non-meteorological target through a fuzzy logic technique using a correlation coefficient (cross correlation coefficient, ρ | 05-28-2015 |
| 20150145718 | RADAR WEATHER DATA SIGNAL PROCESSING METHOD AND SIGNAL PROCESSING MODULE - Disclosed is a radar weather data signal processing module comprising: a pulse compression unit for pulse-compressing a received weather signal; a correlation coefficient calculation unit for calculating a correlation coefficient on the basis of the pulse-compressed weather signal; and a weather variable calculation unit for calculating a weather variable on the basis of the calculated correlation coefficient. | 05-28-2015 |
| 20160054439 | Phased Array Antenna Using Stacked Beams in Elevation and Azimuth - A radar system uses a rotating antenna array having rows that display dispersive properties while feeding multiple radiating elements. In some embodiments, the radiating elements are dual polarized. In at least one embodiment, beam spoiling may be used to generate an unfocused transmit beam that covers an entire elevation range of interest. Digital beam forming may be used during a receive mode to achieve a stack of narrow-width receive beams in elevation. Frequency scanning may also be used to achieve stacked beams in azimuth. | 02-25-2016 |
| 20160061945 | CLUTTER SUPPRESSING DEVICE AND RADAR APPARATUS PROVIDED WITH THE SAME - A clutter suppressing device for suppressing echo data of static clutter components indicating reflection waves caused by radar transmission signals reflecting on a static object is provided. The device includes a static clutter component suppressor configured to receive reception signals containing the static clutter components, and suppress the static clutter components, a reference data memory configured to store, as reference data, echo data of the reception signals obtained in fine weather and in which the static clutter components are suppressed by the static clutter component suppressor, and a rain component extracting module configured to extract echo data indicating rain components contained in the reception signals, by removing the reference data stored in the reference data memory from echo data of the reception signals obtained in rainy weather and in which the static clutter components are suppressed by the static clutter component suppressor. | 03-03-2016 |
| 20160131758 | WEATHER RADAR WITH BRIGHT BAND SUPPRESSION - This disclosure is directed to methods, devices, and systems for generating a weather radar output with bright band suppression. In one example, a method includes determining, for each of several portions of a vertical column from a weather radar signal, a reflectivity range selected from a highest reflectivity range and one or more lower reflectivity ranges. The method further includes determining, in response to determining that portions of the vertical column are in the highest reflectivity range, whether a combination of the reflectivity ranges of the portions of the vertical column meet criteria indicative of high-reflectivity stratiform weather. The method further includes generating, in response to determining that the combination of the reflectivity ranges of the portions of the vertical column meet the criteria indicative of high-reflectivity stratiform weather, a weather radar output that indicates each of the portions of the vertical column as associated with one of the lower reflectivity ranges. | 05-12-2016 |
| 20160154101 | MATCHING SYSTEM BETWEEN CONVECTIVE CELL IN WEATHER RADAR IMAGE AND LIGHTNING AND CONTROL METHOD THEREOF | 06-02-2016 |
| 20160252614 | METEOROLOGICAL RADAR SYSTEM AND METHOD AND DEVICE FOR PROCESSING METEOROLOGICAL INFORMATION | 09-01-2016 |
| 20090066563 | Method and Apparatus for Correcting Weather data, and Computer Program Product - The invention relates to a method, an apparatus and a computer program product for correcting the weather data of radial speed, spectral width and/or differential reflectivity which have been acquired from radar echo data recorded by a ground-based, radar-based remote-sensing appliance ( | 03-12-2009 |
| 20100302094 | SYSTEMS AND METHODS FOR USING NEXRAD INFORMATION TO VERIFY WEATHER RADAR INFORMATION - Systems and methods distinguish weather radar returns from terrain radar returns. An exemplary embodiment receives a radar return from a weather radar system on board an installation vehicle, receives ground-based weather radar information, compares a location of the radar return received from the onboard weather radar system with a corresponding location in the received ground-based, and determines that the radar return received from the onboard weather radar system is a weather radar return when a location in the received ground-based weather radar information indicates a presence of weather at the location of the radar return. | 12-02-2010 |
| 20110074624 | SYSTEMS AND METHODS FOR PREPARING GROUND-BASED WEATHER RADAR INFORMATION FOR USE IN AN INSTALLATION VEHICLE - Systems and methods prepare ground-based supplemental weather radar information for integration with onboard weather radar information. An exemplary embodiment receives ground-based weather radar information from a ground-based weather radar station, the ground-based weather radar information referenced in a first coordinate system; generates supplemental weather radar information from the received ground-based weather radar information, wherein the supplemental weather radar information is referenced to a second coordinate system based upon at least latitude and longitude; and communicates the supplemental weather radar information, wherein the communicated supplemental weather radar information is integrated with weather radar information of an onboard weather radar system of an installation vehicle. | 03-31-2011 |
| 20110291878 | ROTATIONAL PARABOLIC ANTENNA WITH VARIOUS FEED CONFIGURATIONS - A rotational antenna includes a stationary feed which is disposed in a substantially vertical orientation. A parabolic dish is rotationally mounted about the stationary feed in a state of being tipped with respect to the stationary, substantially vertically oriented feed. The rotational parabolic antenna may alternatively be provided with a rotating radio frequency (RF) and acoustic feed. Other embodiments are disclosed. | 12-01-2011 |
| 20120086596 | SYSTEM AND METHOD FOR GENERATING DERIVED PRODUCTS IN A RADAR NETWORK - The present invention relates to systems and methods of measuring atmospheric conditions using networked radar systems. A processor receives sensed data from the radar nodes of the network to determine weather conditions within the atmospheric region measured by network. Preferred embodiments use a velocity processor to determine the velocity of the atmosphere in real time for display. | 04-12-2012 |
| 20130321200 | WIDE BAND CLEAR AIR SCATTER DOPPLER RADAR - Systems and methods for measuring wind speed and direction in clear air conditions using a wide band Doppler radar in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, a wide band Doppler radar system includes an antenna assembly includes at least one transmit antenna and at least one receive antenna; a transceiver connected to the antenna assembly configured to transmit a radar beam includes a transmit signal on a Ka-band carrier frequency and receive a backscattered radar beam includes a carrier frequency that is frequency shifted relative to the transmitted Ka-band carrier frequency of the backscattered radar beam; a data acquisition system connected to the transceiver configured to estimate a wind velocity vector by calculating a Doppler shift between at least one transmitted radar beam and at least one received backscattered radar beam. | 12-05-2013 |
| 20140203961 | Debris Examination Using Ballistic and Radar Integrated Software - A method is provided for analyzing debris events after a launch of a rocket-propelled vehicle. Radar and Doppler data of the launch of the rocket-powered vehicle is collected for a period of time. Atmospheric conditions are determined at the time of launch. A trajectory of the rocket-propelled vehicle is determined during ascent. The collected radar and Doppler data is aligned and calibrated. A first portion of the collected radar and Doppler data is processed with a first means for assessing and characterizing debris. In parallel with the first portion of the collected radar and Doppler data, a second portion of the collected radar and Doppler data is processed with a second means for assessing and characterizing debris. Assessed and characterized debris is identified that may be a threat to the vehicle. And, reports of the identified debris are generated. | 07-24-2014 |
| 20140327569 | RADAR WEATHER DETECTION FOR A WIND TURBINE - A radar system for a wind turbine is provided. The radar system comprises a first radar unit ( | 11-06-2014 |
| 20080278371 | METHODS AND SYSTEMS FOR REDUCING ACQUISITION TIME IN AIRBORNE WEATHER RADAR - An airborne weather radar system and method. The method includes serially generating and transmitting first and second radar pulses having non-overlapping frequency ranges, receiving reflected echoes from the transmitted radar pulses in parallel, and processing the received echoes into a usable form. In an alternative embodiment, the method also includes serially transmitting at least one additional radar pulse having an additional frequency range that does not overlap with the frequency ranges of previously transmitted radar pulses in the serial transmission. The system includes a radar processor configured to serially generate a first control signal for a first radar pulse having a first frequency range and a second control signal for a second radar pulse having a second frequency range that does not overlap with the first frequency range. The radar processor also includes a second component configured to process received echoes in parallel into a usable form. | 11-13-2008 |
| 20080291082 | Method for detecting atmospheric turbulence by an embedded electromagnetic sensor, notably on board an aircraft - An aim of the invention is to allow the detection of turbulence in the absence of tracers. A radar is embedded aboard an aircraft ( | 11-27-2008 |
| 20080309549 | METHOD FOR STORING MEASUREMENTS MADE BY A RADAR - The present invention relates to a method for storing measurements of a given type made by a radar, each measurement having been made at a position in a given coordinate system. The method comprises a step of accessing a structured data storage space, each location of which is addressable by a pair of positive integers and each location of which is able to store at least one evolution profile of the measurements of the given type as a function of altitude. It also comprises a meshing step which associates a ground position with a pair of positive integers allowing a location to be addressed. The method also comprises a step of modifying the content of the location with the pair of integers as its address by storing there an evolution profile such that for each ground position sufficiently close to the position associated with the pair and for which a measurement has been made at a certain altitude, the evolution profile provides approximately the measurement made at this altitude. | 12-18-2008 |
| 20090189802 | SYSTEM AND METHOD FOR USING IRIDIUM SATELLITE SIGNALS FOR METEOROLOGICAL MEASUREMENTS - A method for obtaining weather related information for a portion of the Earth's atmosphere between a mobile platform traversing over a predetermined surface portion of the Earth, and at least one Iridium satellite from the Iridium satellite constellation. The method involves modifying at least one Iridium satellite from a constellation of Iridium satellites to include time and location information in wireless signals that are transmitted in real time by the one satellite. The mobile platform receives the wireless signals from the one Iridium satellite. An occultation system carried on the mobile platform analyzes the time and position information, in addition to location information pertaining to a real time location of the mobile platform, and to derive real time atmospheric weather related information for a geographic area between the mobile platform and the one Iridium satellite. | 07-30-2009 |
| 20090219197 | SYSTEMS AND METHODS FOR SUPPLEMENTAL WEATHER INFORMATION PRESENTATION ON A DISPLAY - An embodiment of the supplemental weather display system presents supplemental weather information on a display in a craft. An exemplary embodiment receives the supplemental weather information from a remote source, determines a location of the supplemental weather information relative to the craft, receives weather information from an on-board radar system, and integrates the supplemental weather information with the weather information received from the on-board radar system. | 09-03-2009 |
| 20090273510 | SYSTEM AND METHOD USING AIRBORNE RADAR OCCULTATION FOR MEASURING ATMOSPHERIC PROPERTIES - A method for estimating an atmospheric condition existing between a portion of the Earth's surface and an airborne mobile platform travelling over the portion of the Earth's surface. The method may involve emitting a radar signal beam toward the Earth's surface from the mobile platform and receiving back at least a portion of the radar signal beam reflected from the Earth's surface. The time of flight information of the radar signal beam is analyzed as a function of elevation angle to determine a specific time of flight value associated with a specific elevation angle of the radar signal beam. The specific time of flight value is used to determine a refractivity of the atmosphere through which the radar signal beam and the reflected radar signal has passed. The refractivity is used to determine the atmospheric condition. | 11-05-2009 |
| 20090322594 | DISPLAY OF HIGH-CRUISE-ALTITUDE WEATHER - A method implementable in a weather-radar system of an aircraft, the weather-radar system configured to generate to a display device, in response to radar return information indicating reflectivity levels below a predetermined reflectivity threshold, an image in a first presentation format. The method includes determining if the altitude of the aircraft is above a predetermined threshold altitude, and, if the altitude of the aircraft is above the threshold altitude, displaying, in response to radar return information indicating reflectivity levels below the predetermined reflectivity threshold, the image in a second presentation format different from the first presentation format. | 12-31-2009 |
| 20100019958 | SYSTEMS AND METHODS FOR LOCATION-BASED DISCRIMINATION OF TURBULENCE - Systems and methods differentiate weather, such as storm cells and/or turbulence regions, based on location relative to a planned flight path of an aircraft. An exemplary embodiment compares a location of the weather with a location of a region of space corresponding to the planned flight path of the aircraft. In response to the location of the weather region being outside of the region of space, an icon is presented on a display corresponding to the weather using a first icon format. In response to location of the weather being within the region of space, the icon corresponding to the weather is presented on the display using a second icon format, the second icon format different from the first icon format. | 01-28-2010 |
| 20100052978 | METHOD AND APPARATUS FOR MAKING AIRBORNE RADAR HORIZON MEASUREMENTS TO MEASURE ATMOSPHERIC REFRACTIVITY PROFILES - A method for determining a refractivity profile of an atmosphere of the Earth. The method may involve: generating radar signals from a radar device located above the Earth's surface toward the Earth's surface; measuring a time of flight and a reflected intensity of reflected radar signals received back at the radar device; using the measured time of flight and the reflected intensity of the reflected radar signals received by the radar device to determine a distance to a radar horizon where the radar signals are tangent to the Earth's surface; and using the distance to the radar horizon to determine a refractivity profile of the atmosphere through which the radar signals and the reflected radar signals have travelled. | 03-04-2010 |
| 20100103029 | ENHANCED ALERTING OF CHARACTERISTIC WEATHER HAZARDS - A method of providing weather radar images to a flight crew of an aircraft includes obtaining raw volumetric radar data corresponding to at least one signal reflected off of a weather system. Based on the radar data, the weather system is computationally classified as being of a first type of a plurality of weather-system types. After classifying the weather system, the radar data is image processed, the image processing yielding an image representing the weather system and corresponding to the first weather-system type. The image is displayed on a display device. | 04-29-2010 |
| 20100109942 | Method for Processing Measured Vertical Profiles of the Power of the Echoes Returned Following a Transmission of Radar Signals - The method processes measured vertical profiles of the power of the echoes returned following a transmission of radar signals, each measured vertical profile being a function of the sweep angle of the radar beam and associated with a given pointing angle/distance box pair of the radar beam. The method generates a synthetic vertical profile of the power of the echoes returned by the ground only, and includes, for each measured vertical profile: superposition of the synthetic vertical profile on the measured vertical profile in question, for various values of the sweep angle, calculation of the error that exists between the measured vertical profile and the synthetic vertical profile, for each sweep angle value in question, and an exclusion, from the measured vertical profile, of the values for which the calculated error is less than a given threshold, in order to generate a resultant vertical profile with no ground echoes. | 05-06-2010 |
| 20100188283 | Method for Characterizing an Atmospheric Turbulence Using Representative Parameters Measured by Radar - The present invention relates to a method for characterizing an atmospheric turbulence by representative parameters measured by a radar. The emission beam of the radar carried by an aircraft scanning the zone of the turbulence, a measured parameter being the total variance of the velocity of the turbulence σ | 07-29-2010 |
| 20100194628 | SYSTEMS AND METHODS FOR DISPLAYING RADAR-MEASURED TURBULENCE INTENSITY ON A VERTICAL DISPLAY - Weather radar detecting systems and methods are operable to display a vertical view of intensities of turbulence regions. An exemplary embodiment has a radar operable to detect turbulence, a processing system operable to determine location and intensity of the detected turbulence, a three-dimensional (3-D) weather information database comprising of a plurality of voxels that is associated with a unique geographic location with respect to the aircraft wherein the information corresponding to the turbulence intensity is stored, and a display operable to display a vertical view of a selected vertical slice, wherein the displayed vertical view displays the determined turbulence intensity and the determined location of the turbulence. | 08-05-2010 |
| 20100201565 | ALERTING OF UNKNOWN WEATHER DUE TO RADAR ATTENUATION - A system and method for determining and displaying an unknown weather due to receiving maximum radar attenuation compensation using a three-dimensional memory. The system and method may also determine whether the flight plan conflicts with an unknown weather zone. The user is alerted to an unknown weather zone and any flight plan conflict with an unknown zone. The user is alerted to the unknown weather zone using displays, sounds, or words that can be generated based on a determined hazard level. | 08-12-2010 |
| 20100245164 | SYSTEMS AND METHODS FOR COLLECTING WEATHER INFORMATION USING AN AIRBORNE AIRCRAFT - Weather information recording systems and methods are operable to record information detected by airborne aircraft. An exemplary embodiment generates a trigger event corresponding to the presence of weather of interest, stores weather information collected by an aviation electronics system in a memory in response to generating the trigger event, and downloads the stored weather information to a remote memory. | 09-30-2010 |
| 20100245165 | SYSTEMS AND METHODS FOR ASSESSING WEATHER IN PROXIMITY TO AN AIRBORNE AIRCRAFT - Dynamic weather model systems and methods are operable to assess weather in proximity to an airborne aircraft. An exemplary embodiment receives a radar return from the weather, determines reflectivity information from the received radar return, retrieves a weather model from a weather model data base, compares the weather with the retrieved weather model and the determined reflectivity information, predicts a characteristic of the weather based upon the comparison of the weather and the weather model, and determines if the predicted characteristic is potentially hazardous to the airborne aircraft. The weather model is defined by at least one weather modeling algorithm, and is defined by at least one of a parameter and a variable parameter range residing in a weather characteristics database. | 09-30-2010 |
| 20100245166 | TURBULENCE PREDICTION OVER EXTENDED RANGES - Methods and systems for predicting turbulence. An exemplary system decomposes near-range reflectivity data into multiple adaptive, three-dimensional Gaussian component functions and decomposes turbulence data into multiple adaptive, three-dimensional Gaussian component functions. The multiple adaptive, three-dimensional Gaussian component functions may include parameters, such as center position, amplitude, and dimensional standard deviations that are determined adaptively to maximally match the measured reflectivity. The multiple adaptive, three-dimensional Gaussian component functions may include parameters adjusted to maximally match the measured turbulence data. | 09-30-2010 |
| 20100245167 | SYSTEMS AND METHODS FOR GAUSSIAN DECOMPOSITION OF WEATHER RADAR DATA FOR COMMUNICATION - Exemplary methods and systems provide for processing weather data received from a weather radar system. An exemplary embodiment receives radar reflectivity data, decomposes the received radar reflectivity data into multiple adaptive Gaussian component functions, selects at least one parameter from the decomposed Gaussian component functions, generates the compressed weather radar display data based on the at least one selected parameter, and communicates the weather radar display data from the craft. | 09-30-2010 |
| 20100302093 | SYSTEMS AND METHODS FOR AIRCRAFT TO AIRCRAFT EXCHANGE OF RADAR INFORMATION OVER LOW BANDWIDTH COMMUNICATION CHANNELS - Systems and methods communicate weather information between aircraft using low bandwidth communication transceivers. An exemplary embodiment receives weather information from a weather radar system on board a remote aircraft, processes the received weather information into weather radar image information that is displayable on at least a display, processes the weather radar image information into a reduced size dataset, and communicates the reduced size dataset to an installation aircraft over the low bandwidth communication channel, wherein the low bandwidth communication channel is generated by a low bandwidth communication transceiver on board the remote aircraft. | 12-02-2010 |
| 20100328143 | SYSTEMS AND METHODS FOR GENERATION OF COMPREHENSIVE AIRSPACE WEATHER CONDITION DISPLAY FROM SHARED AIRCRAFT SENSOR DATA BY A TRANSMITTING AIRCRAFT - Systems and methods communicate sensor data pertaining to detected weather between aircraft. An exemplary system has at least one sensor on a transmitting aircraft that is configured to detect weather and configured to output sensor data, and a transceiver that is configured to receive a query from a requesting aircraft for the sensor data and that is configured to transmit a signal with the sensor data for receipt by the requesting aircraft in response to receiving the query. Upon receipt by the requesting aircraft, the received sensor data of the transmitting aircraft may then be fused with sensor data of the requesting aircraft for a geographic region of interest to extend the effective sensor coverage and to resolve at least one of a location conflict and a severity conflict between the sensor data of the transmitting aircraft and the requesting aircraft. | 12-30-2010 |
| 20110001662 | PROCESS AND A DEVICE FOR AUTOMATICALLY DETERMINING METEOROLOGICAL CONDITIONS IN THE VICINITY OF AN AIRCRAFT - A process and a device for automatically determining meteorological conditions in the vicinity of an aircraft is disclosed. The device ( | 01-06-2011 |
| 20110057832 | Method for determining the angular aperture corresponding to the extent in a plane of an object seen by a radar antenna - The present invention relates to a method for determining the angular aperture corresponding to the extent in a plane of an object seen by a radar antenna, the object being situated at a given distance from the radar antenna. Echoes are measured in directions | 03-10-2011 |
| 20110148692 | METHODS AND SYSTEMS FOR DETECTION OF HAZARD TO AVIATION DUE TO CONVECTIVE WEATHER - Systems and methods for improving output of weather information. A weather radar system receives weather reflectivity values. A processing device stores the received weather reflectivity values into a three-dimensional buffer, calculates a sum of the reflectivity value stored in a column of cells within the three-dimensional buffer, and assigns a first hazard indication to the cells of the column when the result of the calculation is above a first threshold. A display device generates a weather display based on data stored in the three-dimensional buffer. The weather display includes a display icon associated with the hazard indication when a cell from the three-dimensional buffer has been selected for the weather display. | 06-23-2011 |
| 20110148693 | INFERENCE OF TURBULENCE HAZARD FROM PROXIMITY TO RADAR TURBULENCE MEASUREMENT - Systems and methods for conveying turbulence hazards to a flight crew. An exemplary weather radar system includes a three-dimensional buffer, a processor, and a display. The processor receives weather radar reflectivity values, stores the received weather radar reflectivity values into a three-dimensional buffer, generates and stores turbulence values into cells of the three-dimensional buffer based on the stored respective reflectivity values, and generates first display icons for cells that are located within a predefined threshold distance from a cell in the three-dimensional buffer that has been determined to include a turbulence value that is greater than a first threshold value. The display presents the first display icons when associated cells are selected for display from the three-dimensional buffer. | 06-23-2011 |
| 20110148694 | SYSTEMS AND METHODS FOR INFERING HAIL AND LIGHTNING USING AN AIRBORNE WEATHER RADAR VOLUMETRIC BUFFER - A weather radar system for improving output of potential lightning and hail weather conditions. An exemplary system includes a processor that receives and stores the weather radar reflectivity values into a three-dimensional buffer, receives an outside air temperature value, and determines freezing level based on the received outside air temperature value. The processor generates lightning icon(s) when a reflectivity value stored at cell(s) of the three-dimensional buffer above determined freezing level is greater than a first threshold amount. Also, the processor adds 1.6 km to the determined freezing level and generates hail icon(s) when a reflectivity value stored at cell(s) at the determined freezing level plus 1.6 km are greater than a second threshold amount. The display device displays the hail and lightning icons when an altitude value that corresponds to the cells associated with the generated lightning icons has been selected for display. | 06-23-2011 |
| 20110187588 | METHODS AND SYSTEMS FOR PRESENTING WEATHER HAZARD INFORMATION ON AN IN-TRAIL PROCEDURES DISPLAY - Systems and methods for improving situational awareness on an in-trails procedures display. A radar system transmits a radar signal and receives and stores weather radar reflectivity values into a three-dimensional buffer. A processor determines whether any of the stored weather reflectivity values indicate the presence of a weather hazard and generates one or more weather hazard icons based on the stored weather reflectivity values. An in-trail procedures display device displays the generated weather hazard icons. Wake vortex information for other aircraft is generated and outputted on the in-trail procedures display. Also, the processor receives a request for an altitude change and generates an alert when the aircraft is determined not to be cleared to transition to the requested altitude based on a projected transition, any existing weather hazards, wake vortices of proximate aircraft, and in-trail procedures. | 08-04-2011 |
| 20120139778 | SYSTEMS AND METHODS FOR IMPROVING RELEVANT WEATHER DETERMINATION - Systems and methods for improving relevant weather determination for aircraft at altitude. An exemplary system includes a weather radar component and memory that stores weather radar data in a three-dimensional (3D) buffer. A processor calculates vertically integrated reflectivity using the stored weather radar data at a predefined reference altitude at one or more locations from the aircraft. The processor then adjusts a lower boundary of a relevant weather envelope from a first value to a second value, if the vertically integrated reflectivity is greater than a predefined threshold. The range of the adjusted lower boundary of the envelope is associated with the weather radar data having the calculated vertically integrated reflectivity greater than the predefined threshold. A display device displays the weather radar data located within the envelope in a first manner and displays the weather radar data located outside of the envelope in a second manner. | 06-07-2012 |
| 20120139779 | METHOD OF CORRECTING REFLECTIVITY MEASUREMENTS BY ISOTHERM DETECTION AND RADAR IMPLEMENTING THE METHOD - A method of correcting the reflectivity measurements performed by a radar such as a weather radar, a reflectivity measurement being associated with a resolution volume includes analyzing the current resolution volume to determine whether the plane representing the 0° C. isotherm passes through it. When the plane representing the 0° C. isotherm passes through the current resolution volume, the volume is split into two parts lying on either side of said plane, the attenuation associated with the resolution volume is determined by taking into account the contribution of each of the parts to the measured reflectivity. The reflectivity associated with the current resolution volume is corrected using the attenuation thus determined. An onboard weather radar implements the method. | 06-07-2012 |
| 20120154209 | SYSTEMS AND METHODS FOR PREDICTING LOCATIONS OF WEATHER RELATIVE TO AN AIRCRAFT - Systems and methods for predicting when a weather anomaly (e.g., convective cell) will intersect with an aircraft. Direction of movement and velocity information for at least one weather anomaly are received at a processor from a radar system. An intercept point for the at least one weather anomaly is determined based on the received location, direction of movement and velocity information and location and current speed information for the aircraft. Then, a first indicator based on the intercept point is displayed on a display device. | 06-21-2012 |
| 20120212367 | METHODS AND SYSTEMS FOR IDENTIFYING HAZARDOUS FLIGHT ZONE AREAS ON A DISPLAY - Systems and methods for representing a weather hazard without also including a large percentage of non-hazard area. An exemplary system includes a memory that stores radar reflectivity data in a three-dimensional buffer, a display device and a processor that is in data communication with the memory and the display device. The processor receives a two-dimensional shape based on a portion of the data stored in the three-dimensional buffer, then finds a center of the shape. Next the processor finds the furthest away point of the shape in a plurality of regions sharing the center as a common point and generates a polygon based on the furthest away points. The display device displays the generated polygon. The shape is associated with hazardous weather information determined from the radar reflectivity data stored in the three-dimensional buffer. The display device is an aircraft weather radar display. | 08-23-2012 |
| 20120249365 | METHOD AND SYSTEM FOR GENERATING WEATHER AND GROUND REFLECTIVITY INFORMATION - A method, system, and computer program product for storing weather radar return data into a three-dimensional buffer. The system located on an aircraft includes a radar system that transmits a radar signal and generates a radar measurement as a result of radar return of the transmitted radar signal. A three-dimensional buffer includes a plurality of storage locations. A processor generates or updates a reflectivity value in storage locations in the three-dimensional buffer based on the generated radar measurement, a previously stored reflectivity value for the storage location, and uncertainty parameters. The uncertainty parameters of normalized radar cross section for ground elements are initialized based on a type of ground associated with each of the elements. The uncertainty parameters for weather reflectivity are initialized based on a priori information. The generated reflectivity values are stored in the three-dimensional buffer according to the storage locations. | 10-04-2012 |
| 20120268319 | AIR-TO-GROUND ANTENNA - A directional antenna is disclosed. The directional antenna may include a support structure for defining a support surface; a first antenna stack positioned on the support surface, the first antenna stack having multiple antenna elements oriented in a first orientation, allowing the first antenna stack to concentrate radiations in a first direction; a second antenna stack positioned on the support surface, the second antenna stack having multiple antenna elements oriented in a second orientation, the second orientation being rotated a predetermined angle with respect to the first orientation, allowing the second antenna stack to concentrate radiations in a second direction different from the first direction; and a controller configured to selectively activate at least one of the first antenna stack or the second antenna stack to steer the radiations of the directional antenna in different directions without physical/mechanical movement of the antenna stacks. | 10-25-2012 |
| 20120280857 | HORIZON SCANNING SYSTEM FOR A ROTARY WING AIRCRAFT INCLUDING SENSORS HOUSED WITHIN A TUBERCLE ON A ROTOR BLADE - A rotary wing aircraft, a rotor blade and a horizon scanning system are provided. The rotary wing aircraft, for example, may include, but is not limited to, a mast, an engine configured to provide rotational force to the mast and a controller. The rotary wing aircraft may further include a rotor blade connected to the mast having a leading edge, a plurality of tubercles positioned on the leading edge of the rotor blade, and a sensor housed within at least one of the plurality tubercles communicatively connected to the controller. | 11-08-2012 |
| 20130009808 | Aircraft Weather Radar with Reduced Heading, Attitude and Range Artifacts - An avionic weather radar system tracks aircraft orientation with respect to acquired scan radar data to correct the display of the weather radar data for range distortion and orientation changes of the aircraft between radar acquisition and display, reducing image artifacts. | 01-10-2013 |
| 20130234884 | SYSTEM AND METHOD TO IDENTIFY REGIONS OF AIRSPACE HAVING ICE CRYSTALS USING AN ONBOARD WEATHER RADAR SYSTEM - Systems and methods of detecting type I ice crystals using an aircraft's onboard weather radar system are disclosed. An exemplary embodiment identifies radar returns having a return level signal strength less than a radar return sensitivity threshold level, determines if at least one of a weather condition and a flight condition concurrently exists with the identified radar returns having the return level signal strength less than the radar return sensitivity threshold level, and identifies a region of airspace potentially having type I ice crystals when the at least one of the weather condition and the flight condition concurrently exists with the identified radar returns having the return level signal strength less than the radar return sensitivity threshold level. | 09-12-2013 |
| 20130328715 | MILLIMETER WAVE RADAR SYSTEM FOR AND METHOD OF WEATHER DETECTION - A system and method relates to a weather detection system using millimeter wave radar data. Processing electronics receives millimeter wave radar (MMWR) data and senses a presence of weather spatial extent using return strength data associated with the MMWR data. The processing electronics uses spectral width data associated with the MMWR data to assign a level to the weather in the spatial extent. | 12-12-2013 |
| 20140118188 | METHODS AND SYSTEMS FOR PRESENTING WEATHER HAZARD INFORMATION ON AN IN-TRAIL PROCEDURES DISPLAY - Systems and methods for improving situational awareness on an in-trails procedures display. A radar system transmits a radar signal and receives and stores weather radar reflectivity values into a three-dimensional buffer. A processor determines whether any of the stored weather reflectivity values indicate the presence of a weather hazard and generates one or more weather hazard icons based on the stored weather reflectivity values. An in-trail procedures display device displays the generated weather hazard icons. Wake vortex information for other aircraft is generated and outputted on the in-trail procedures display. Also, the processor receives a request for an altitude change and generates an alert when the aircraft is determined not to be cleared to transition to the requested altitude based on a projected transition, any existing weather hazards, wake vortices of proximate aircraft, and in-trail procedures. | 05-01-2014 |
| 20140159949 | AIRCRAFT COMPRISING AN ONBOARD WEATHER RADAR ANTENNA PROVIDED WITH INCLINED PANELS - An aircraft comprising a fuselage and a radome fixed to the fuselage. The radome defines a housing and the fuselage comprises a sealed bulkhead closing the housing. A weather radar antenna comprises a main panel. A plurality of peripheral panels are arranged around the main panel, inclined from a planar surface of the main panel and located on the same side of the planar surface. The housing contains the antenna which is mounted on the fuselage through a mechanical support fixed to the fuselage and to the weather radar antenna on the same side of the planar surface as the peripheral panels. A bird strike shield is located between the antenna and the sealed bulkhead. The shield comprises a dome with a top and a base, the base being fixed to the aircraft fuselage. An opening is formed at the top of the dome through which the mechanical support passes. | 06-12-2014 |
| 20140361923 | SYSTEM AND METHOD OF DISPLAYING CONVECTIVE WEATHER ON A WEATHER RADAR DISPLAY - A convective weather graphic element generator system generates graphic elements associated with severe convective weather for presentation on a display on an aircraft. An exemplary system employs a weather radar and a processing system. The processing system determines a value associated with the detected convective weather based on the received weather radar returns detected by the weather radar, compares the value associated with the detected convective weather with a threshold, and generates a graphic element for a region of airspace when the value associated with the detected convective weather exceeds the threshold. The display is configured to concurrently present the weather reflectivity information generated by the weather radar and the graphic element associated with the convective weather, wherein portions of both the presented graphic element and the presented weather reflectivity information of the corresponding area are concurrently visible on the display. | 12-11-2014 |
| 20140361924 | ON-BOARD METEOROLOGICAL RADAR HAVING A ROTATING ANTENNA - A meteorological radar installed on board an aircraft, including a mechanical support fixed to a bulkhead of a nose of the aircraft, wherein an antenna is mounted on the mechanical support to enable turning mobility around an axis of rotation. The antenna includes a pedestal, on which at least one blade, extending radially along the axis of rotation, is installed. A free side of the blade, along which a plurality of radiating elements is distributed, perceptibly has the shape of a portion of conic in a plane including the axis of rotation. Because the blade is mobile only in rotation along the axis of rotation, and the selection of the emission/reception direction is performed electronically, not mechanically, the space and length requirements of the meteorological radar are fixed, whether the meteorological radar is in operation or not, and are determined based on the eccentricity and parameter of the conic. | 12-11-2014 |
| 20160033641 | SYSTEM AND METHOD TO IDENTIFY REGIONS OF AIRSPACE HAVING ICE CRYSTALS USING AN ONBOARD WEATHER RADAR SYSTEM - Systems and methods of detecting type I ice crystals using an aircraft's onboard weather radar system are disclosed. An exemplary embodiment identifies radar returns having a return level signal strength less than a radar return sensitivity threshold level, determines if at least one of a weather condition and a flight condition concurrently exists with the identified radar returns having the return level signal strength less than the radar return sensitivity threshold level, and identifies a region of airspace potentially having type I ice crystals when the at least one of the weather condition and the flight condition concurrently exists with the identified radar returns having the return level signal strength less than the radar return sensitivity threshold level. | 02-04-2016 |
| 20160131739 | DISPLAY SYSTEM AND METHOD USING WEATHER RADAR SENSING - An enhanced vision method uses or an enhanced vision system includes an onboard weather radar system configured to improve angular resolution and/or resolution in range. The onboard weather radar system generates image data representative of the external scene topography of a runway environment associated with radar returns received by the onboard weather radar system. The radar returns are in an X-band or a C-band. The enhanced vision system also includes a display in communication with the onboard weather radar system and is configured to display an image associated with the image data that is generated by the onboard weather radar system. The enhanced vision system can also be used as an enhanced flight vision system. | 05-12-2016 |
| 20110140955 | SYSTEM FOR MEASURING TURBULENCE REMOTELY - A method of predicting turbulence that may involve receiving electromagnetic energy that has traveled along a path subject to the turbulence, with the turbulence altering the electromagnetic energy. A determination may be made as to the alteration caused by the turbulence by filtering the electromagnetic energy as it was received with a velocity of one of a transmitter of the electromagnetic energy or a receiver that received the electromagnetic energy. | 06-16-2011 |
| 20120092213 | GNSS ATMOSPHERIC ESTIMATION WITH FEDERATED IONOSPHERIC FILTER - Methods and apparatus are presented for estimating environmental parameters from GNSS signals in real time. Some embodiments estimate a float solution using a federated ionospheric filter. Some embodiments fix ambiguities for improved estimates. | 04-19-2012 |
| 20120119944 | GNSS ATMOSPHERIC ESTIMATION WITH AMBIGUITY FIXING - Methods and apparatus are presented for estimating environmental parameters from GNSS signals in real time. Some embodiments estimate a float solution using a federated ionospheric filter. Some embodiments fix ambiguities for improved estimates. | 05-17-2012 |
| 20130147659 | SYSTEM FOR DETECTING SEA-SURFACE WIND, USING SATELLITE OBSERVATION, AND A METHOD FOR DETECTING SEA-SURFACE WIND - Systems and methods are provided that involve obtaining emissivity and reflectivity by the ratio of the radiance temperature versus the sea level temperature as observed by a satellite, and may further calculate two reflectivity values observed or simulated by the vertical or horizontal polarized channels of microwave, and then estimate a surface roughness. Further, illustrative implementations may involve obtaining the regression relation expression between the surface roughness and the wind strength and then detecting the sea-surface wind, using the information observed by the satellite again. As such, the sea-surface wind information can be obtained through satellite observation, and the information can be utilized for preventive activities against disaster including typhoon, the energy industry including wind power and the fishery in quasi-real time. | 06-13-2013 |
| 20140300510 | WEATHER DETECTION USING SATELLITE COMMUNICATION SIGNALS - Disclosed is a satellite weather detection system that uses atmospheric precipitation density data. Subscribers detect the signal strength and signal-to-noise ratio of signals that are transmitted from the satellite. Upstream transmit power data is also collected, which is needed to achieve a given SNR at a gateway. The values of the downstream signal strength and signal-to-noise ratio data as well as the upstream transmit power data are normalized and compared with current atmospheric data. The data can be color coded and graphically displayed to show weather patterns. Location and velocity of high precipitation density cells can be tracked to predict movement of storms. | 10-09-2014 |
| 20090295626 | MARITIME CLIMATE INFORMATION SYSTEM AND METHOD FOR COLLECTING AND PROCESSING MARTIME CLIMATE INFORMATION - The present invention discloses a maritime climate information system and a method for collecting and processing the maritime climate information. The system is characterized in that the detecting device, the positioning device and the first maritime wireless network device are disposed on the first maritime vehicle, and respectively used to detect the climate information around the first maritime vehicle, and calculate the coordinate of the first maritime vehicle and transmit the climate information and the coordinate. Through the maritime network structure formed by the second maritime wireless network devices disposed on the second maritime vehicles, the operating interface of each maritime vehicle of this system receives the climate information and the coordinate, and displays an electronic map on which the climate information is displayed. By using this method, this system can provide more accurate and immediate maritime climate information. | 12-03-2009 |
| Entries |
| Document | Title | Date |
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| 20080211714 | Method of Measuring the Speed of Air by Doppler Radar - A method of measuring the speed of air in a zone of the atmosphere by the Doppler effect by means of a radar, the method comprising the steps of transmitting bursts of three pulses at different rates F | 09-04-2008 |
| 20090160700 | Monitoring and Mapping of Atmospheric Phenomena - A computerized system for mapping an atmospheric phenomenon in a geographic region. Multiple free-space electromagnetic communications links are previously distributed in the geographic region. The system includes an interface to monitoring mechanisms attached respectively to the free-space electromagnetic communications links. The monitoring mechanisms respectively monitor attenuation levels of the free-space electromagnetic communications links. A processor simultaneously processes the attenuation levels, and maps in the geographic region the atmospheric phenomenon. The simultaneous processing preferably applies a non-linear model which relates the attenuation levels the atmospheric phenomenon, and solves a tomographic problem based on the non-linear model and the attenuation levels. The tomographic problem is preferably solved by an interactive algorithm based on consecutive refinement and linear inversion at each iteration. Alternatively, an interpolation is performed based on respective inverse distance from the communications links. Preferably, the interpolation is further based on respective lengths of communications links. A data interface preferably provides to subscribers temporal information related to the atmospheric phenomenon within portions of the geographic region. | 06-25-2009 |
| 20090174596 | POLARIZATION-MODULATED TRANSMITTER FOR A WEATHER RADAR - Polarization modulated transmitter, in particular for a weather radar, with at least two signal paths ( | 07-09-2009 |
| 20090243917 | METHOD OF PROCESSING A RADAR IMAGE, OBTAINED IN PARTICULAR FROM AN AIRBORNE RADAR, WITH EVALUATION OF THE ALTITUDE OF THE 0ºC ISOTHERM - The invention targets a method of processing a radar image obtained from a radar. It comprises an automatic evaluation of the altitude of the isotherm at zero degrees Celsius, called zero isotherm, using a processing of the reflectivity information (rf(px)) conveyed by pixels (px) forming all or part of the radar image. | 10-01-2009 |
| 20090243918 | System and Method for Presenting Wind Speed Information - A system and method for presenting wind speed information in a manner so as to be easily understood and appreciated by viewers of televised weather report presentations and the like. Wind speed information is presented as two or three-dimensional wind speed contour lines, delineating geographic areas corresponding to different wind speeds, overlaid on a geographic map display either alone, or in combination with radar reflectivity information. Wind velocity information received from a weather radar system, such as NEXRAD, relative to the weather radar is converted to absolute wind speed information for display. | 10-01-2009 |
| 20090267826 | SYSTEM FOR MEASURING TURBULENCE REMOTELY - A system for detecting turbulence along a path that is subject to turbulence. The system may make use of at least one transmitter to transmit electromagnetic (EM) energy along the path and at least one receiver to receive the EM energy. At least one of the transmitter and the receiver moves along the path. The receiver may have an antenna responsive to incident EM energy to produce a received signal, and an input for accepting a velocity signal indicating a velocity that the receiver or the transmitter is moving. The receiver processes the received signal using the velocity signal to remove a shift associated with the received signal because of relative motion between a source of the EM energy and the receiver or transmitter that is moving along the path. Thus, the receiver determines an alteration of the EM energy caused by the turbulence and outputs a signal indicative of the turbulence. | 10-29-2009 |
| 20090295627 | Dual-polarization radar processing system using time domain method - Embodiments of the present invention provide for improved estimation of environmental parameters in a dual-polarization radar system. In some embodiments, environmental parameters can be estimated using a linear combination of data received in two orthogonal polarization states. In particular, embodiments of the invention improve ground clutter and noise mitigation in dual polarization radar systems. Moreover, embodiments of the invention also provide for systems to determine the differential reflectivity and/or the magnitude of the co-polar correlation coefficient and the differential phase in a dual polarization radar system. | 12-03-2009 |
| 20090315762 | Adaptive specific differential phase in dual-polarization radar - Systems and methods are provided for adaptively estimating the specific differential phase (K | 12-24-2009 |
| 20100026565 | METHOD FOR GENERATING A REPRESENTATION OF AN ATMOSPHERIC VORTEX KINEMATIC STRUCTURE - A method for generating a representation of a kinematic structure of an atmospheric vortex is provided. The method comprises receiving a plurality of signals from a Doppler radar. The signals are reflected at a plurality of pulse volumes. The method also comprises measuring a plurality of Doppler velocities based on the received signals. A plurality of scaled Doppler velocities are calculated representing the plurality of measured Doppler velocities, the radial distance between the Doppler radar and the pulse volume where the Doppler velocity is measured, and the distance between the radar and a first estimated atmospheric vortex center. The method also comprises generating a representation of the kinematic structure of the atmospheric vortex using the plurality of scaled Doppler wind velocity values. | 02-04-2010 |
| 20100117892 | METHOD FOR RADAR MONITORING OF WAKE TURBULENCE - The present invention relates to a method for detecting and grading the state and the evolution of wake turbulence caused by an aircraft, on the basis of the radar signals reflected by this turbulence, these signals being analyzed through analysis cells of given dimension in terms of distance and bearing. This method mainly comprises:
| 05-13-2010 |
| 20100164786 | Method of Characterizing the Convection Intensity of a Cloud, by a Meteorological Radar - The present invention relates to a method of characterizing the convection intensity of a cloud by a meteorological radar. | 07-01-2010 |
| 20100207809 | RADAR DEVICE AND RAIN/SNOW AREA DETECTING DEVICE - A radar device is disclosed. The radar device includes a radar antenna, from which detection signals are transmitted while the radar antenna being rotated, the radar device generating a radar image from reflection waves of the transmitted detection signals, a reception module for receiving the reflection waves of the detection signals, an inclination calculating module for calculating an inclination of level of the received signals that continue in a predetermined direction, the inclination being a rate of change in the received signal level per predetermined range in the predetermined direction, and a rain/snow reflection determining module for determining whether the received signals are reflection signals from at least one of rain and snow by using the inclination calculated by the inclination calculating module. | 08-19-2010 |
| 20100253574 | WEATHER RADAR AND WEATHER OBSERVATION METHOD - A weather radar includes an antenna unit of an active phased array system in which a plurality of antenna elements configured to transmit a radar pulse and receive a reflected pulse are arranged in a vertical direction, a transmission beam formation unit configured to divide an observation range in the elevation angle direction into a plurality of observation elevation angles, subdivide each observation elevation angle into a plurality of regions, assign a set of a plurality of regions not adjacent to each other to a pulse repetition interval (PRI), and form a fan-shaped transmission beam in the elevation angle direction for each of the regions in the set, and a reception beam formation unit configured to form a plurality pencil-shaped reception beams for each of the plurality of regions. | 10-07-2010 |
| 20100309041 | METHOD AND DEVICE FOR DETECTING PRECIPITATION BY RADAR - A method for detecting precipitation in a region monitored by radar beams includes ascertaining a first average power of a first backscattered radar signal, ascertaining a second average power of a second backscattered radar signal, and detecting an existence of a homogenous medium when the average powers conform. | 12-09-2010 |
| 20100328144 | WEATHER RADAR AND WEATHER OBSERVATION METHOD - A weather radar includes an antenna unit configured to transmit a radio wave from a plurality of antenna elements, and receive a reflected wave from a weather target by carrying out beam scanning in an elevation angle direction by phase control, a drive unit configured to control an elevation angle of an aperture of the antenna unit, and a controller configured to cause the antenna unit to carry out the beam scanning in a state where the aperture is faced to a point which presents a maximum range in the observational range by the drive unit, and direct, at a time point when the weather target is detected based on a received signal of the reflected wave, the aperture toward the weather target by the drive unit. | 12-30-2010 |
| 20110018757 | WEATHER RADAR APPARATUS AND RAINFALL RATE CALCULATION METHOD - According to one embodiment, a weather radar apparatus includes a transmitting/receiving unit configured to simultaneously transmit radar waves of a horizontally polarized wave and a vertically polarized wave and receive reflected waves, a signal processing unit configured to perform dual polarization observation based on a reception output from the transmitting/receiving unit and calculate a received power of each polarized wave, an observation parameter calculation unit configured to calculate, based on the received powers, a first observation parameter having a first spatial resolution, and a second observation parameter having higher correlation with a rainfall rate than that of the first observation parameter and a second spatial resolution lower than the first spatial resolution, and a rainfall rate calculation unit configured to synthetically determine the rainfall rate based on the first observation parameter and the second observation parameter. | 01-27-2011 |
| 20110050486 | DOPPLER RADAR APPARATUS AND METHOD OF CALCULATING DOPPLER VELOCITY - According to one embodiment, a Doppler radar apparatus includes a quadrature detection unit configured to quadrature-detect a received signal of a reflected pulse from an observation target, and generate time-series data including an in-phase component and a quadrature component, an interference judgment unit configured to judge whether an interference signal is mixed into the received signal based on the time-series data, a correction unit configured to correct a vector expressed by the in-phase component and the quadrature component such that variation with respect to time of a deviation angle of the vector continues when the interference judgment unit has judged that an interference signal is mixed into the received signal, and a calculation unit configured to calculate a Doppler velocity of the observation target based on an amount of variation with respect to time of the deviation angle of corrected vector. | 03-03-2011 |
| 20110063164 | WEATHER RADAR APPARATUS AND SIGNAL PROCESSING METHOD THEREOF - According to one embodiment, a weather radar apparatus includes a transmitting/receiving unit configured to transmit a radar wave to an observation target and receive a reflected wave, a distribution unit configured to distribute a received signal of the reflected wave to a main path and at least another path, an extraction unit configured to extract, from a signal of the other path, an interference wave signal extracted from another radio station, and a removing unit configured to remove the interference wave signal extracted from a signal of the main path. | 03-17-2011 |
| 20110090111 | METHOD AND APPARATUS FOR THE NOWCAST OF LIGHTNING THREAT USING POLARIMETRIC RADAR - A system and method for predicting the probability of cloud-to-ground lightning strikes, ‘frequent’, more than 2 strikes per minute on average, cloud to ground lightning strikes, and/or ‘numerous’, more than 4 strikes per minute on average, through the use of polarimetric radar is presented. The data volume created by the polarimetric radar is processed to identify the type of hydrometeors in each range cell. For each vertical column, the maximum height of the graupel is compared to the lowest height of ice crystals in the volume. In the event that the lowest height of ice crystals is ambiguous, the height of the temperature where ice crystals form, −10° C., may be substituted for the lowest height of the ice crystals. Probability density functions are applied to the height difference to determine the probability of cloud to ground lightning within the column. Lightning probability product data are displayed on a visualization system in a georeferenced manner providing georeferenced lightning warnings. A forecast of the probabilities of cloud-to-ground lightning is determined by simple translation using storm track properties. | 04-21-2011 |
| 20110102249 | RESOLUTION ENHANCEMENT SYSTEM (RES) FOR NETWORKED RADARS - Embodiments provide methods, systems, and/or devices that can provide measurements of the inherent reflectivity distribution from different look angles using N radar nodes. Doppler weather radars generally operate with very good spatial resolution in range and poor cross range resolution at farther ranges. Embodiments provide methodologies to retrieve higher resolution reflectivity data from a network of radars. In a networked radar environment, each radar may observe a common reflectivity distribution with different spreading function. The principle that the underlying reflectivity distribution should remain identical for all the nodes may be used to solve the inverse problem to determine intrinsic reflectivities. | 05-05-2011 |
| 20110102250 | SENSITIVITY ENHANCEMENT SYSTEM - Sensitivity is a critical aspect of weather radar systems. Such systems not only detect atmospheric patterns but often need to precisely measure weak precipitation echoes. Embodiments of the invention use pulse compression techniques to increase the sensitivity of weather radar systems. These techniques can include sending two waveforms into a region of interest, where the second waveform is designed based on knowledge about the first waveform. Such systems can enhance the sensitivity of weather radars about 10 dB. | 05-05-2011 |
| 20110234453 | WEATHER RADAR APPARATUS AND WEATHER OBSERVATION METHOD - According to one embodiment, a weather radar apparatus includes an antenna unit, a drive unit, an adjustment unit, and a control unit. The antenna unit is configured to transmit radio waves from a plurality of antenna elements, perform beam scan in a direction of elevation angle by phase control, and receive waves reflected by a weather target. The drive unit is configured to drive an elevation angle and an azimuth angle of an aperture plane of the antenna unit. The adjustment unit is configured to adjust an observation range and an observation elevation angle by the antenna unit and the drive unit in accordance with a plurality of observation modes. The control unit is configured to set the observation mode based on a received signal of the reflected waves. | 09-29-2011 |
| 20110267224 | STORM ADVECTION NOWCASTING - Embodiments of the invention can predict the ground location and intensity of storm cells for a future time using radar reflectivity data. In some embodiments, a Sinc approximation of the general flow equation can be solved to predict the ground location and intensity of a storm cell. In some embodiments, to solve the Sinc approximation the velocity of a storm cell can be estimated using various techniques including solving the flow equation in the frequency domain. The results can provide efficient prediction of storm cell position in nowcasting applications. | 11-03-2011 |
| 20110285582 | CYLINDRICAL POLARIMETRIC PHASED ARRAY RADAR - A radar data acquisition system including a polarimetric phased array antenna and a radar control and processing system. The polarimetric phased array antenna includes a support system, an array of panels and a switching network. One or more of the panels include a dual pole antenna for at least one of transmitting and receiving a dual polarization electromagnetic beam. The switching network communicates with the panels such that at least one of power, radar and control signals are sent to and received from one or more selected panels. The radar control and processing system communicates with the switching network for forming electromagnetic signals directed to one or more selected panels such that the selected panels form a dual polarization electromagnetic beam, and for reading signals sensed by one or more selected panels and for decoding the signals into an electronic radar output. | 11-24-2011 |
| 20110291879 | SYSTEM AND METHOD FOR DETECTING AND DETERMINING REMOTE ATMOSPHERIC ANOMALIES - A system for detecting and determining remote atmospheric anomalies is furnished with a movable-beam anemometry probe for measuring the orthogonal projection onto the sighting axis, named the radial component, of a relative velocity remotely, with respect to a remote air mass by Doppler frequency shift. The system comprises means for determining wind heterogeneities remotely, on the basis of at least two successive measurements, at one and the same remote point, of the radial component of the relative velocity of the system with respect to the remote air mass, by said anemometry probe, the line of sight of said anemometry probe comprising said remote point during said successive measurements. | 12-01-2011 |
| 20110298656 | RADAR SENSOR AND METHOD FOR DETECTING PRECIPITATION USING A RADAR SENOR - In the method for detecting precipitation using a radar sensor, the radar sensor emits a transmission signal, whose frequency is varied periodically in successive modulation ramps. Signals received by the radar sensor are analyzed to determine precipitation on the basis of two different criteria. In the method, a first criterion relates to signals which are received during a pass-through of a modulation ramp, and a second criterion relates to a comparison of signals which are received during a pass-through of at least two successive modulation ramps. | 12-08-2011 |
| 20110304501 | RADAR RETURN SIGNAL PROCESSING APPARATUS AND METHOD - According to one embodiment, a radar return signal processing apparatus includes a detector, an estimation unit and an extraction unit. The detector detects an average Doppler frequency, a spectrum width, and a received power of each of echoes, from a radar return signal obtained repeatedly at regular intervals. The estimation unit estimates an optimum mixed density function by learning modeling a shaped of the frequency spectrum by calculating repeatedly a sum of density functions of each of the echoes. The extraction unit extracts information on any one of the echoes included in the radar return signal, from a parameter of the estimated mixed density function. | 12-15-2011 |
| 20120013503 | METHOD FOR DETECTING PRECIPITATON USING A RADAR LOCATING DEVICE FOR MOTOR VEHICLES - A method for detecting precipitation using a radar locating device for motor vehicles, that is designed to locate objects in the surroundings of the vehicle, in which method a locating signal ( | 01-19-2012 |
| 20120032840 | METHOD FOR DETECTING PRECIPITATION USING A RADAR SENSOR SYSTEM FOR MOTOR VEHICLES - A method for detecting precipitation using a radar sensor system for motor vehicles designed for locating objects in the surroundings of the vehicle, in which method a locating signal that is a measure of the received power density as a function of the distance is integrated across a specific distance range lying below a limit distance for detecting precipitation. The locating signal is subjected to a filtering procedure before being integrated, the filtering procedure suppressing the peaks caused by located objects so that the filtered signal forms a measure of the noise level as a function of the distance. | 02-09-2012 |
| 20120133551 | METHOD OF CORRECTING REFLECTIVITY MEASUREMENTS AND RADAR IMPLEMENTING THIS METHOD - A method of correcting reflectivity measurements performed by a radar, such as a weather radar, includes a reflectivity measurement being associated with a resolution volume. The method includes acquiring the reflectivity measurement Z | 05-31-2012 |
| 20130002475 | OFF-DIAGONAL ELEMENT ECHO POWER ESTIMATOR FOR POLARIZATION WEATHER RADAR - Embodiments of the invention are directed to improving the sensitivity in polarimetric radar data. In particular, embodiments of the invention improve the sensitivity of such systems with improved post processing techniques. The sensitivity can be improved by using the co-polar elements (off diagonal elements) of the covariance matrix in power and/or reflectivity determinations. This can not only improve the sensitivity but may also enhance identification and improve quantitative estimates of precipitation. | 01-03-2013 |
| 20130135142 | OBJECT SENSING DEVICE - An object sensing device has a radiation part that radiates an exploring wave forward, a sensing part having a first sensing element and a second sensing element, wherein the first sensing element and the second sensing element sense a reflected wave of the exploring wave radiated by the radiation part; and a determination part. The determination part determines a rainfall state ahead based on an intensity of the reflected wave sensed by the first sensing element. The determination part determines existence or non-existence of an object positioned forward based on an intensity of the reflected wave sensed by the second sensing element. A visual-field restricting member is disposed in front of the first sensing element. The visual-field restricting member causes a visual field, in which the first sensing element senses the reflected wave, to differ from a visual field, in which the second sensing element senses the reflected wave. | 05-30-2013 |
| 20130141274 | ROTATIONAL PARABOLIC ANTENNA WITH VARIOUS FEED CONFIGURATIONS - A rotational antenna includes a stationary feed which is disposed in a substantially vertical orientation. A parabolic dish is rotationally mounted about the stationary feed in a state of being tipped with respect to the stationary, substantially vertically oriented feed. The rotational parabolic antenna may alternatively be provided with a rotating radio frequency (RF) and acoustic feed. Other embodiments are disclosed. | 06-06-2013 |
| 20130271313 | Robust Attenuation Correction System for Radar Reflectivity and Differential Reflectivity - Embodiments of the invention are directed toward attenuation correction of radar data. Atmospheric attenuation is a function of atmospheric water drop size and temperature. A number of different theoretical models are available to mathematically describe the particle drop shape that influences attenuation estimation. Each of these models has proven effective in different scenarios. It can be difficult, however, to predict which theoretical model to use. The total differential phase gives an idea of the attenuation, but it depends on the model. Moreover, the total attenuation along a rain path must be apportioned to different parts of the radar path in order to correct for attenuation along a radar path. Embodiments of this invention allows for a system to apportion the attenuation to different parts of the radar beam. Embodiments of the invention also allow for optimization of a number of different theoretical models for both drop size and temperature. | 10-17-2013 |
| 20140028495 | System and Method for Evaluating Wind Flow Fields Using Remote Sensing Devices - The present invention provides a system and method for obtaining data to determine one or more characteristics of a wind field using a first remote sensing device and a second remote sensing device. Coordinated data is collected from the first and second remote sensing devices and analyzed to determine the one or more characteristics of the wind field. The first remote sensing device is positioned to have a portion of the wind field within a first scanning sector of the first remote sensing device. The second remote sensing device is positioned to have the portion of the wind field disposed within a second scanning sector of the second remote sensing device. | 01-30-2014 |
| 20140028496 | APPARATUS AND METHOD FOR USING RADAR TO EVALUATE WIND FLOW FIELDS FOR WIND ENERGY APPLICATIONS - The present invention provides an apparatus and method for obtaining data to determine one or more characteristics of a wind flow field using one or more radars. Data is collected from the one or more radars, and analyzed to determine the one or more characteristics of the wind flow field. The one or more radars are positioned to have a portion of the wind flow field within a scanning sector of the one or more radars. | 01-30-2014 |
| 20140176362 | Systems and Methods For Inferring Localized Hail Intensity - The present invention is directed to system and method of processing meteorological data. The process comprises receiving a meteorological data corresponding to a geographic region from at least one meteorological data source for a selected time slice, with the meteorological data including radar reflectivity data. The system processes the meteorological data to derive probability of severe hail for points within the geographic region, processes the meteorological data to derive vertically integrated liquid for the points within the geographic region, and processes the meteorological data to derive enhanced echo tops for the points within the geographic region. The system processes the vertically integrated liquid and the enhanced echo tops to derive vertically integrated liquid density for the points within the geographic region and processes the probability of severe hail and the vertically integrated liquid density to derive derived hail index numbers for the points within the geographic region. The system generate data packets of the derived hail index numbers, with each of the derived hail index numbers corresponding to a local geographic point. | 06-26-2014 |
| 20140253370 | WEATHER RADAR APPARATUS, OBSERVATION SEQUENCE GENERATION METHOD, AND OBSERVATION SEQUENCE GENERATION PROGRAM - According to one embodiment, a weather radar apparatus includes an antenna apparatus, a signal processing apparatus, a data converter, a forecasting unit, a state determination unit, and radar controller. The antenna apparatus radiates a radar pulse and receives a reflection pulse. The signal processing apparatus calculates a reception intensity, a Doppler speed, and a speed width. The data converter calculates rainfall intensity data and wind direction/speed data. The forecasting unit generates forecasting data based on the rainfall intensity data and on the wind direction/speed data. The state determination unit generates an observation sequence. The radar controller controls the antenna apparatus in accordance with the observation sequence. | 09-11-2014 |
| 20140292563 | Radar System and Methods for Making and Using Same - A transmitter front end circuit is described. The transmitter front end circuit is provided with a radar transmitter port, a radar receiver port, a radar amplifier, a coupler, a radar antenna input and a signal director. The radar amplifier has a low power side receiving a transmit signal having a transmit waveform modulated onto a carrier frequency from the radar transmitter port, and a high power side outputting an amplified transmit waveform suitable for transmission to a radar antenna. The coupler is coupled to the high power side of the radar amplifier to sample the amplified transmit waveform. The radar antenna input is configured to receive return signals from a radar antenna. And, the signal director selectively directs the sample of the amplified transmit waveform and the return signals to the radar receiver port. | 10-02-2014 |
| 20140327570 | WEATHER RADAR - Weather radar for measuring radar signals in the GHz range with a receiver containing at least one signal path, the receiver comprising a receiving facility for an incoming radar signal, on which a test signal generated by a test signal generator is superimposed in a coupler, and a processing device to amplify, filter and convert both signals to lower frequencies, wherein for filtering a matched filter is provided, and with an evaluation device in which calibration parameters of the signal path are derived from the test signal for the frequency of the test signal in order to determine the signal strength of the received radar signal, wherein the test signal is superimposed with at least one frequency differing from the frequency of the radar signal, so that the radar signal and the test signal are processed separately from one another by the evaluation device, and the calibration parameters of the signal path for the frequency of the radar signal are determinable from the test signal through a modeling of the frequency dependence of the calibration parameters for frequencies around those of the radar signal. | 11-06-2014 |
| 20140333475 | METHOD AND ARRANGEMENT FOR REMOVING GROUND CLUTTER - A digital radar receiver generates the input signal which is a stream of complex numbers. The input signal is rearranged and sorted by measurement volumes, resulting in Doppler data vectors. Doppler data vectors are filtered using a number of different digital filters. The output Doppler data vectors of the filters together with the original Doppler data vector are the candidate signals. Each candidate signal is analyzed using several criteria in order to find the one signal which is most likely to be caused by precipitation and has the ground clutter removed by the filtering. The selected signal is then used to calculate the meteorological products. The selected signal is also used to derive a velocity value or velocity distribution while taking into account the effects of the filtering performed earlier. | 11-13-2014 |
| 20150029055 | ANTENNA AND METHOD OF MANUFACTURING THE ANTENNA - A slot array antenna where slots are arrayed in two directions is provided for suppressing occurrence of side lobes. An antenna includes a radiation waveguide part and probes. The radiation waveguide part has two sheets of metal plates facing each other and outwardly radiates a radio wave from a plurality of slots formed in one of the metal plates. Each probe is arranged for every slot to extend inward of the radiation waveguide part from the face where the slots are formed, and changes a transmission mode of the radio wave within the radiation waveguide part. The slots are narrow and arranged at fixed intervals in both a longitudinal direction and a lateral direction of the slots. The probe is disposed for every slot, on either side of the slot in the lateral direction. Between the adjacent slots, the probes are disposed on the opposite sides in the lateral direction. | 01-29-2015 |
| 20150061929 | METEOROLOGICAL OBSERVATION SYSTEM USING VEHICLES - Disclosed herein is a meteorological observation system using vehicles. The meteorological observation system using vehicles includes a meteorological observation device embedded in each of the vehicles and configured to periodically detect surrounding weather information and to photograph weather conditions, the vehicle configured to run on a road using radar devices for detecting the front and right and left sides of the vehicle, that is, sensors for supporting driving and prevent a collision, and to provide mobility to the meteorological observation device, a meteorological server configured to collect pieces of the weather information from the meteorological observation devices moving in respective areas through wireless communication and to provide the pieces of weather information to a meteorological observation center, the meteorological observation center configured to use information, received from the meteorological server, as statistical data or meteorological observation and forecast data. | 03-05-2015 |
| 20150070208 | WEATHER RADAR AND WEATHER OBSERVATION METHOD - According to one embodiment, weather radar includes first antenna unit, second antenna unit, transmitter and receiver. First antenna electronically scans first area of observation space with first transmission beams. Second antenna electronically scans second area whose slant range is shorter than that of first area with second transmission beams of wider width than first transmission beams. Transmitter transmits radio wave to first area from first antenna with first transmission beams and transmits radio wave to second area from second antenna with second transmission beams. Receiver forms reception beams with first antenna to receive reflected wave from first area and reflected wave from second area with reception beams. | 03-12-2015 |
| 20150145717 | INTEGRATED RAINFALL ESTIMATION METHOD USING X-BAND DUAL-POLARIMETRIC RADAR MEASUREMENT DATA - An integrated rainfall calculation method using X-band dual-polarimetric radar measurement data includes a precipitation classification step of classifying hydrometeors into four types of snow, rain/snow, rain and non-meteorological target through a fuzzy logic technique using a correlation coefficient (cross correlation coefficient, ρ | 05-28-2015 |
| 20150145718 | RADAR WEATHER DATA SIGNAL PROCESSING METHOD AND SIGNAL PROCESSING MODULE - Disclosed is a radar weather data signal processing module comprising: a pulse compression unit for pulse-compressing a received weather signal; a correlation coefficient calculation unit for calculating a correlation coefficient on the basis of the pulse-compressed weather signal; and a weather variable calculation unit for calculating a weather variable on the basis of the calculated correlation coefficient. | 05-28-2015 |
| 20160054439 | Phased Array Antenna Using Stacked Beams in Elevation and Azimuth - A radar system uses a rotating antenna array having rows that display dispersive properties while feeding multiple radiating elements. In some embodiments, the radiating elements are dual polarized. In at least one embodiment, beam spoiling may be used to generate an unfocused transmit beam that covers an entire elevation range of interest. Digital beam forming may be used during a receive mode to achieve a stack of narrow-width receive beams in elevation. Frequency scanning may also be used to achieve stacked beams in azimuth. | 02-25-2016 |
| 20160061945 | CLUTTER SUPPRESSING DEVICE AND RADAR APPARATUS PROVIDED WITH THE SAME - A clutter suppressing device for suppressing echo data of static clutter components indicating reflection waves caused by radar transmission signals reflecting on a static object is provided. The device includes a static clutter component suppressor configured to receive reception signals containing the static clutter components, and suppress the static clutter components, a reference data memory configured to store, as reference data, echo data of the reception signals obtained in fine weather and in which the static clutter components are suppressed by the static clutter component suppressor, and a rain component extracting module configured to extract echo data indicating rain components contained in the reception signals, by removing the reference data stored in the reference data memory from echo data of the reception signals obtained in rainy weather and in which the static clutter components are suppressed by the static clutter component suppressor. | 03-03-2016 |
| 20160131758 | WEATHER RADAR WITH BRIGHT BAND SUPPRESSION - This disclosure is directed to methods, devices, and systems for generating a weather radar output with bright band suppression. In one example, a method includes determining, for each of several portions of a vertical column from a weather radar signal, a reflectivity range selected from a highest reflectivity range and one or more lower reflectivity ranges. The method further includes determining, in response to determining that portions of the vertical column are in the highest reflectivity range, whether a combination of the reflectivity ranges of the portions of the vertical column meet criteria indicative of high-reflectivity stratiform weather. The method further includes generating, in response to determining that the combination of the reflectivity ranges of the portions of the vertical column meet the criteria indicative of high-reflectivity stratiform weather, a weather radar output that indicates each of the portions of the vertical column as associated with one of the lower reflectivity ranges. | 05-12-2016 |
| 20160154101 | MATCHING SYSTEM BETWEEN CONVECTIVE CELL IN WEATHER RADAR IMAGE AND LIGHTNING AND CONTROL METHOD THEREOF | 06-02-2016 |
| 20160252614 | METEOROLOGICAL RADAR SYSTEM AND METHOD AND DEVICE FOR PROCESSING METEOROLOGICAL INFORMATION | 09-01-2016 |
| 20090066563 | Method and Apparatus for Correcting Weather data, and Computer Program Product - The invention relates to a method, an apparatus and a computer program product for correcting the weather data of radial speed, spectral width and/or differential reflectivity which have been acquired from radar echo data recorded by a ground-based, radar-based remote-sensing appliance ( | 03-12-2009 |
| 20100302094 | SYSTEMS AND METHODS FOR USING NEXRAD INFORMATION TO VERIFY WEATHER RADAR INFORMATION - Systems and methods distinguish weather radar returns from terrain radar returns. An exemplary embodiment receives a radar return from a weather radar system on board an installation vehicle, receives ground-based weather radar information, compares a location of the radar return received from the onboard weather radar system with a corresponding location in the received ground-based, and determines that the radar return received from the onboard weather radar system is a weather radar return when a location in the received ground-based weather radar information indicates a presence of weather at the location of the radar return. | 12-02-2010 |
| 20110074624 | SYSTEMS AND METHODS FOR PREPARING GROUND-BASED WEATHER RADAR INFORMATION FOR USE IN AN INSTALLATION VEHICLE - Systems and methods prepare ground-based supplemental weather radar information for integration with onboard weather radar information. An exemplary embodiment receives ground-based weather radar information from a ground-based weather radar station, the ground-based weather radar information referenced in a first coordinate system; generates supplemental weather radar information from the received ground-based weather radar information, wherein the supplemental weather radar information is referenced to a second coordinate system based upon at least latitude and longitude; and communicates the supplemental weather radar information, wherein the communicated supplemental weather radar information is integrated with weather radar information of an onboard weather radar system of an installation vehicle. | 03-31-2011 |
| 20110291878 | ROTATIONAL PARABOLIC ANTENNA WITH VARIOUS FEED CONFIGURATIONS - A rotational antenna includes a stationary feed which is disposed in a substantially vertical orientation. A parabolic dish is rotationally mounted about the stationary feed in a state of being tipped with respect to the stationary, substantially vertically oriented feed. The rotational parabolic antenna may alternatively be provided with a rotating radio frequency (RF) and acoustic feed. Other embodiments are disclosed. | 12-01-2011 |
| 20120086596 | SYSTEM AND METHOD FOR GENERATING DERIVED PRODUCTS IN A RADAR NETWORK - The present invention relates to systems and methods of measuring atmospheric conditions using networked radar systems. A processor receives sensed data from the radar nodes of the network to determine weather conditions within the atmospheric region measured by network. Preferred embodiments use a velocity processor to determine the velocity of the atmosphere in real time for display. | 04-12-2012 |
| 20130321200 | WIDE BAND CLEAR AIR SCATTER DOPPLER RADAR - Systems and methods for measuring wind speed and direction in clear air conditions using a wide band Doppler radar in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, a wide band Doppler radar system includes an antenna assembly includes at least one transmit antenna and at least one receive antenna; a transceiver connected to the antenna assembly configured to transmit a radar beam includes a transmit signal on a Ka-band carrier frequency and receive a backscattered radar beam includes a carrier frequency that is frequency shifted relative to the transmitted Ka-band carrier frequency of the backscattered radar beam; a data acquisition system connected to the transceiver configured to estimate a wind velocity vector by calculating a Doppler shift between at least one transmitted radar beam and at least one received backscattered radar beam. | 12-05-2013 |
| 20140203961 | Debris Examination Using Ballistic and Radar Integrated Software - A method is provided for analyzing debris events after a launch of a rocket-propelled vehicle. Radar and Doppler data of the launch of the rocket-powered vehicle is collected for a period of time. Atmospheric conditions are determined at the time of launch. A trajectory of the rocket-propelled vehicle is determined during ascent. The collected radar and Doppler data is aligned and calibrated. A first portion of the collected radar and Doppler data is processed with a first means for assessing and characterizing debris. In parallel with the first portion of the collected radar and Doppler data, a second portion of the collected radar and Doppler data is processed with a second means for assessing and characterizing debris. Assessed and characterized debris is identified that may be a threat to the vehicle. And, reports of the identified debris are generated. | 07-24-2014 |
| 20140327569 | RADAR WEATHER DETECTION FOR A WIND TURBINE - A radar system for a wind turbine is provided. The radar system comprises a first radar unit ( | 11-06-2014 |
| 20080278371 | METHODS AND SYSTEMS FOR REDUCING ACQUISITION TIME IN AIRBORNE WEATHER RADAR - An airborne weather radar system and method. The method includes serially generating and transmitting first and second radar pulses having non-overlapping frequency ranges, receiving reflected echoes from the transmitted radar pulses in parallel, and processing the received echoes into a usable form. In an alternative embodiment, the method also includes serially transmitting at least one additional radar pulse having an additional frequency range that does not overlap with the frequency ranges of previously transmitted radar pulses in the serial transmission. The system includes a radar processor configured to serially generate a first control signal for a first radar pulse having a first frequency range and a second control signal for a second radar pulse having a second frequency range that does not overlap with the first frequency range. The radar processor also includes a second component configured to process received echoes in parallel into a usable form. | 11-13-2008 |
| 20080291082 | Method for detecting atmospheric turbulence by an embedded electromagnetic sensor, notably on board an aircraft - An aim of the invention is to allow the detection of turbulence in the absence of tracers. A radar is embedded aboard an aircraft ( | 11-27-2008 |
| 20080309549 | METHOD FOR STORING MEASUREMENTS MADE BY A RADAR - The present invention relates to a method for storing measurements of a given type made by a radar, each measurement having been made at a position in a given coordinate system. The method comprises a step of accessing a structured data storage space, each location of which is addressable by a pair of positive integers and each location of which is able to store at least one evolution profile of the measurements of the given type as a function of altitude. It also comprises a meshing step which associates a ground position with a pair of positive integers allowing a location to be addressed. The method also comprises a step of modifying the content of the location with the pair of integers as its address by storing there an evolution profile such that for each ground position sufficiently close to the position associated with the pair and for which a measurement has been made at a certain altitude, the evolution profile provides approximately the measurement made at this altitude. | 12-18-2008 |
| 20090189802 | SYSTEM AND METHOD FOR USING IRIDIUM SATELLITE SIGNALS FOR METEOROLOGICAL MEASUREMENTS - A method for obtaining weather related information for a portion of the Earth's atmosphere between a mobile platform traversing over a predetermined surface portion of the Earth, and at least one Iridium satellite from the Iridium satellite constellation. The method involves modifying at least one Iridium satellite from a constellation of Iridium satellites to include time and location information in wireless signals that are transmitted in real time by the one satellite. The mobile platform receives the wireless signals from the one Iridium satellite. An occultation system carried on the mobile platform analyzes the time and position information, in addition to location information pertaining to a real time location of the mobile platform, and to derive real time atmospheric weather related information for a geographic area between the mobile platform and the one Iridium satellite. | 07-30-2009 |
| 20090219197 | SYSTEMS AND METHODS FOR SUPPLEMENTAL WEATHER INFORMATION PRESENTATION ON A DISPLAY - An embodiment of the supplemental weather display system presents supplemental weather information on a display in a craft. An exemplary embodiment receives the supplemental weather information from a remote source, determines a location of the supplemental weather information relative to the craft, receives weather information from an on-board radar system, and integrates the supplemental weather information with the weather information received from the on-board radar system. | 09-03-2009 |
| 20090273510 | SYSTEM AND METHOD USING AIRBORNE RADAR OCCULTATION FOR MEASURING ATMOSPHERIC PROPERTIES - A method for estimating an atmospheric condition existing between a portion of the Earth's surface and an airborne mobile platform travelling over the portion of the Earth's surface. The method may involve emitting a radar signal beam toward the Earth's surface from the mobile platform and receiving back at least a portion of the radar signal beam reflected from the Earth's surface. The time of flight information of the radar signal beam is analyzed as a function of elevation angle to determine a specific time of flight value associated with a specific elevation angle of the radar signal beam. The specific time of flight value is used to determine a refractivity of the atmosphere through which the radar signal beam and the reflected radar signal has passed. The refractivity is used to determine the atmospheric condition. | 11-05-2009 |
| 20090322594 | DISPLAY OF HIGH-CRUISE-ALTITUDE WEATHER - A method implementable in a weather-radar system of an aircraft, the weather-radar system configured to generate to a display device, in response to radar return information indicating reflectivity levels below a predetermined reflectivity threshold, an image in a first presentation format. The method includes determining if the altitude of the aircraft is above a predetermined threshold altitude, and, if the altitude of the aircraft is above the threshold altitude, displaying, in response to radar return information indicating reflectivity levels below the predetermined reflectivity threshold, the image in a second presentation format different from the first presentation format. | 12-31-2009 |
| 20100019958 | SYSTEMS AND METHODS FOR LOCATION-BASED DISCRIMINATION OF TURBULENCE - Systems and methods differentiate weather, such as storm cells and/or turbulence regions, based on location relative to a planned flight path of an aircraft. An exemplary embodiment compares a location of the weather with a location of a region of space corresponding to the planned flight path of the aircraft. In response to the location of the weather region being outside of the region of space, an icon is presented on a display corresponding to the weather using a first icon format. In response to location of the weather being within the region of space, the icon corresponding to the weather is presented on the display using a second icon format, the second icon format different from the first icon format. | 01-28-2010 |
| 20100052978 | METHOD AND APPARATUS FOR MAKING AIRBORNE RADAR HORIZON MEASUREMENTS TO MEASURE ATMOSPHERIC REFRACTIVITY PROFILES - A method for determining a refractivity profile of an atmosphere of the Earth. The method may involve: generating radar signals from a radar device located above the Earth's surface toward the Earth's surface; measuring a time of flight and a reflected intensity of reflected radar signals received back at the radar device; using the measured time of flight and the reflected intensity of the reflected radar signals received by the radar device to determine a distance to a radar horizon where the radar signals are tangent to the Earth's surface; and using the distance to the radar horizon to determine a refractivity profile of the atmosphere through which the radar signals and the reflected radar signals have travelled. | 03-04-2010 |
| 20100103029 | ENHANCED ALERTING OF CHARACTERISTIC WEATHER HAZARDS - A method of providing weather radar images to a flight crew of an aircraft includes obtaining raw volumetric radar data corresponding to at least one signal reflected off of a weather system. Based on the radar data, the weather system is computationally classified as being of a first type of a plurality of weather-system types. After classifying the weather system, the radar data is image processed, the image processing yielding an image representing the weather system and corresponding to the first weather-system type. The image is displayed on a display device. | 04-29-2010 |
| 20100109942 | Method for Processing Measured Vertical Profiles of the Power of the Echoes Returned Following a Transmission of Radar Signals - The method processes measured vertical profiles of the power of the echoes returned following a transmission of radar signals, each measured vertical profile being a function of the sweep angle of the radar beam and associated with a given pointing angle/distance box pair of the radar beam. The method generates a synthetic vertical profile of the power of the echoes returned by the ground only, and includes, for each measured vertical profile: superposition of the synthetic vertical profile on the measured vertical profile in question, for various values of the sweep angle, calculation of the error that exists between the measured vertical profile and the synthetic vertical profile, for each sweep angle value in question, and an exclusion, from the measured vertical profile, of the values for which the calculated error is less than a given threshold, in order to generate a resultant vertical profile with no ground echoes. | 05-06-2010 |
| 20100188283 | Method for Characterizing an Atmospheric Turbulence Using Representative Parameters Measured by Radar - The present invention relates to a method for characterizing an atmospheric turbulence by representative parameters measured by a radar. The emission beam of the radar carried by an aircraft scanning the zone of the turbulence, a measured parameter being the total variance of the velocity of the turbulence σ | 07-29-2010 |
| 20100194628 | SYSTEMS AND METHODS FOR DISPLAYING RADAR-MEASURED TURBULENCE INTENSITY ON A VERTICAL DISPLAY - Weather radar detecting systems and methods are operable to display a vertical view of intensities of turbulence regions. An exemplary embodiment has a radar operable to detect turbulence, a processing system operable to determine location and intensity of the detected turbulence, a three-dimensional (3-D) weather information database comprising of a plurality of voxels that is associated with a unique geographic location with respect to the aircraft wherein the information corresponding to the turbulence intensity is stored, and a display operable to display a vertical view of a selected vertical slice, wherein the displayed vertical view displays the determined turbulence intensity and the determined location of the turbulence. | 08-05-2010 |
| 20100201565 | ALERTING OF UNKNOWN WEATHER DUE TO RADAR ATTENUATION - A system and method for determining and displaying an unknown weather due to receiving maximum radar attenuation compensation using a three-dimensional memory. The system and method may also determine whether the flight plan conflicts with an unknown weather zone. The user is alerted to an unknown weather zone and any flight plan conflict with an unknown zone. The user is alerted to the unknown weather zone using displays, sounds, or words that can be generated based on a determined hazard level. | 08-12-2010 |
| 20100245164 | SYSTEMS AND METHODS FOR COLLECTING WEATHER INFORMATION USING AN AIRBORNE AIRCRAFT - Weather information recording systems and methods are operable to record information detected by airborne aircraft. An exemplary embodiment generates a trigger event corresponding to the presence of weather of interest, stores weather information collected by an aviation electronics system in a memory in response to generating the trigger event, and downloads the stored weather information to a remote memory. | 09-30-2010 |
| 20100245165 | SYSTEMS AND METHODS FOR ASSESSING WEATHER IN PROXIMITY TO AN AIRBORNE AIRCRAFT - Dynamic weather model systems and methods are operable to assess weather in proximity to an airborne aircraft. An exemplary embodiment receives a radar return from the weather, determines reflectivity information from the received radar return, retrieves a weather model from a weather model data base, compares the weather with the retrieved weather model and the determined reflectivity information, predicts a characteristic of the weather based upon the comparison of the weather and the weather model, and determines if the predicted characteristic is potentially hazardous to the airborne aircraft. The weather model is defined by at least one weather modeling algorithm, and is defined by at least one of a parameter and a variable parameter range residing in a weather characteristics database. | 09-30-2010 |
| 20100245166 | TURBULENCE PREDICTION OVER EXTENDED RANGES - Methods and systems for predicting turbulence. An exemplary system decomposes near-range reflectivity data into multiple adaptive, three-dimensional Gaussian component functions and decomposes turbulence data into multiple adaptive, three-dimensional Gaussian component functions. The multiple adaptive, three-dimensional Gaussian component functions may include parameters, such as center position, amplitude, and dimensional standard deviations that are determined adaptively to maximally match the measured reflectivity. The multiple adaptive, three-dimensional Gaussian component functions may include parameters adjusted to maximally match the measured turbulence data. | 09-30-2010 |
| 20100245167 | SYSTEMS AND METHODS FOR GAUSSIAN DECOMPOSITION OF WEATHER RADAR DATA FOR COMMUNICATION - Exemplary methods and systems provide for processing weather data received from a weather radar system. An exemplary embodiment receives radar reflectivity data, decomposes the received radar reflectivity data into multiple adaptive Gaussian component functions, selects at least one parameter from the decomposed Gaussian component functions, generates the compressed weather radar display data based on the at least one selected parameter, and communicates the weather radar display data from the craft. | 09-30-2010 |
| 20100302093 | SYSTEMS AND METHODS FOR AIRCRAFT TO AIRCRAFT EXCHANGE OF RADAR INFORMATION OVER LOW BANDWIDTH COMMUNICATION CHANNELS - Systems and methods communicate weather information between aircraft using low bandwidth communication transceivers. An exemplary embodiment receives weather information from a weather radar system on board a remote aircraft, processes the received weather information into weather radar image information that is displayable on at least a display, processes the weather radar image information into a reduced size dataset, and communicates the reduced size dataset to an installation aircraft over the low bandwidth communication channel, wherein the low bandwidth communication channel is generated by a low bandwidth communication transceiver on board the remote aircraft. | 12-02-2010 |
| 20100328143 | SYSTEMS AND METHODS FOR GENERATION OF COMPREHENSIVE AIRSPACE WEATHER CONDITION DISPLAY FROM SHARED AIRCRAFT SENSOR DATA BY A TRANSMITTING AIRCRAFT - Systems and methods communicate sensor data pertaining to detected weather between aircraft. An exemplary system has at least one sensor on a transmitting aircraft that is configured to detect weather and configured to output sensor data, and a transceiver that is configured to receive a query from a requesting aircraft for the sensor data and that is configured to transmit a signal with the sensor data for receipt by the requesting aircraft in response to receiving the query. Upon receipt by the requesting aircraft, the received sensor data of the transmitting aircraft may then be fused with sensor data of the requesting aircraft for a geographic region of interest to extend the effective sensor coverage and to resolve at least one of a location conflict and a severity conflict between the sensor data of the transmitting aircraft and the requesting aircraft. | 12-30-2010 |
| 20110001662 | PROCESS AND A DEVICE FOR AUTOMATICALLY DETERMINING METEOROLOGICAL CONDITIONS IN THE VICINITY OF AN AIRCRAFT - A process and a device for automatically determining meteorological conditions in the vicinity of an aircraft is disclosed. The device ( | 01-06-2011 |
| 20110057832 | Method for determining the angular aperture corresponding to the extent in a plane of an object seen by a radar antenna - The present invention relates to a method for determining the angular aperture corresponding to the extent in a plane of an object seen by a radar antenna, the object being situated at a given distance from the radar antenna. Echoes are measured in directions | 03-10-2011 |
| 20110148692 | METHODS AND SYSTEMS FOR DETECTION OF HAZARD TO AVIATION DUE TO CONVECTIVE WEATHER - Systems and methods for improving output of weather information. A weather radar system receives weather reflectivity values. A processing device stores the received weather reflectivity values into a three-dimensional buffer, calculates a sum of the reflectivity value stored in a column of cells within the three-dimensional buffer, and assigns a first hazard indication to the cells of the column when the result of the calculation is above a first threshold. A display device generates a weather display based on data stored in the three-dimensional buffer. The weather display includes a display icon associated with the hazard indication when a cell from the three-dimensional buffer has been selected for the weather display. | 06-23-2011 |
| 20110148693 | INFERENCE OF TURBULENCE HAZARD FROM PROXIMITY TO RADAR TURBULENCE MEASUREMENT - Systems and methods for conveying turbulence hazards to a flight crew. An exemplary weather radar system includes a three-dimensional buffer, a processor, and a display. The processor receives weather radar reflectivity values, stores the received weather radar reflectivity values into a three-dimensional buffer, generates and stores turbulence values into cells of the three-dimensional buffer based on the stored respective reflectivity values, and generates first display icons for cells that are located within a predefined threshold distance from a cell in the three-dimensional buffer that has been determined to include a turbulence value that is greater than a first threshold value. The display presents the first display icons when associated cells are selected for display from the three-dimensional buffer. | 06-23-2011 |
| 20110148694 | SYSTEMS AND METHODS FOR INFERING HAIL AND LIGHTNING USING AN AIRBORNE WEATHER RADAR VOLUMETRIC BUFFER - A weather radar system for improving output of potential lightning and hail weather conditions. An exemplary system includes a processor that receives and stores the weather radar reflectivity values into a three-dimensional buffer, receives an outside air temperature value, and determines freezing level based on the received outside air temperature value. The processor generates lightning icon(s) when a reflectivity value stored at cell(s) of the three-dimensional buffer above determined freezing level is greater than a first threshold amount. Also, the processor adds 1.6 km to the determined freezing level and generates hail icon(s) when a reflectivity value stored at cell(s) at the determined freezing level plus 1.6 km are greater than a second threshold amount. The display device displays the hail and lightning icons when an altitude value that corresponds to the cells associated with the generated lightning icons has been selected for display. | 06-23-2011 |
| 20110187588 | METHODS AND SYSTEMS FOR PRESENTING WEATHER HAZARD INFORMATION ON AN IN-TRAIL PROCEDURES DISPLAY - Systems and methods for improving situational awareness on an in-trails procedures display. A radar system transmits a radar signal and receives and stores weather radar reflectivity values into a three-dimensional buffer. A processor determines whether any of the stored weather reflectivity values indicate the presence of a weather hazard and generates one or more weather hazard icons based on the stored weather reflectivity values. An in-trail procedures display device displays the generated weather hazard icons. Wake vortex information for other aircraft is generated and outputted on the in-trail procedures display. Also, the processor receives a request for an altitude change and generates an alert when the aircraft is determined not to be cleared to transition to the requested altitude based on a projected transition, any existing weather hazards, wake vortices of proximate aircraft, and in-trail procedures. | 08-04-2011 |
| 20120139778 | SYSTEMS AND METHODS FOR IMPROVING RELEVANT WEATHER DETERMINATION - Systems and methods for improving relevant weather determination for aircraft at altitude. An exemplary system includes a weather radar component and memory that stores weather radar data in a three-dimensional (3D) buffer. A processor calculates vertically integrated reflectivity using the stored weather radar data at a predefined reference altitude at one or more locations from the aircraft. The processor then adjusts a lower boundary of a relevant weather envelope from a first value to a second value, if the vertically integrated reflectivity is greater than a predefined threshold. The range of the adjusted lower boundary of the envelope is associated with the weather radar data having the calculated vertically integrated reflectivity greater than the predefined threshold. A display device displays the weather radar data located within the envelope in a first manner and displays the weather radar data located outside of the envelope in a second manner. | 06-07-2012 |
| 20120139779 | METHOD OF CORRECTING REFLECTIVITY MEASUREMENTS BY ISOTHERM DETECTION AND RADAR IMPLEMENTING THE METHOD - A method of correcting the reflectivity measurements performed by a radar such as a weather radar, a reflectivity measurement being associated with a resolution volume includes analyzing the current resolution volume to determine whether the plane representing the 0° C. isotherm passes through it. When the plane representing the 0° C. isotherm passes through the current resolution volume, the volume is split into two parts lying on either side of said plane, the attenuation associated with the resolution volume is determined by taking into account the contribution of each of the parts to the measured reflectivity. The reflectivity associated with the current resolution volume is corrected using the attenuation thus determined. An onboard weather radar implements the method. | 06-07-2012 |
| 20120154209 | SYSTEMS AND METHODS FOR PREDICTING LOCATIONS OF WEATHER RELATIVE TO AN AIRCRAFT - Systems and methods for predicting when a weather anomaly (e.g., convective cell) will intersect with an aircraft. Direction of movement and velocity information for at least one weather anomaly are received at a processor from a radar system. An intercept point for the at least one weather anomaly is determined based on the received location, direction of movement and velocity information and location and current speed information for the aircraft. Then, a first indicator based on the intercept point is displayed on a display device. | 06-21-2012 |
| 20120212367 | METHODS AND SYSTEMS FOR IDENTIFYING HAZARDOUS FLIGHT ZONE AREAS ON A DISPLAY - Systems and methods for representing a weather hazard without also including a large percentage of non-hazard area. An exemplary system includes a memory that stores radar reflectivity data in a three-dimensional buffer, a display device and a processor that is in data communication with the memory and the display device. The processor receives a two-dimensional shape based on a portion of the data stored in the three-dimensional buffer, then finds a center of the shape. Next the processor finds the furthest away point of the shape in a plurality of regions sharing the center as a common point and generates a polygon based on the furthest away points. The display device displays the generated polygon. The shape is associated with hazardous weather information determined from the radar reflectivity data stored in the three-dimensional buffer. The display device is an aircraft weather radar display. | 08-23-2012 |
| 20120249365 | METHOD AND SYSTEM FOR GENERATING WEATHER AND GROUND REFLECTIVITY INFORMATION - A method, system, and computer program product for storing weather radar return data into a three-dimensional buffer. The system located on an aircraft includes a radar system that transmits a radar signal and generates a radar measurement as a result of radar return of the transmitted radar signal. A three-dimensional buffer includes a plurality of storage locations. A processor generates or updates a reflectivity value in storage locations in the three-dimensional buffer based on the generated radar measurement, a previously stored reflectivity value for the storage location, and uncertainty parameters. The uncertainty parameters of normalized radar cross section for ground elements are initialized based on a type of ground associated with each of the elements. The uncertainty parameters for weather reflectivity are initialized based on a priori information. The generated reflectivity values are stored in the three-dimensional buffer according to the storage locations. | 10-04-2012 |
| 20120268319 | AIR-TO-GROUND ANTENNA - A directional antenna is disclosed. The directional antenna may include a support structure for defining a support surface; a first antenna stack positioned on the support surface, the first antenna stack having multiple antenna elements oriented in a first orientation, allowing the first antenna stack to concentrate radiations in a first direction; a second antenna stack positioned on the support surface, the second antenna stack having multiple antenna elements oriented in a second orientation, the second orientation being rotated a predetermined angle with respect to the first orientation, allowing the second antenna stack to concentrate radiations in a second direction different from the first direction; and a controller configured to selectively activate at least one of the first antenna stack or the second antenna stack to steer the radiations of the directional antenna in different directions without physical/mechanical movement of the antenna stacks. | 10-25-2012 |
| 20120280857 | HORIZON SCANNING SYSTEM FOR A ROTARY WING AIRCRAFT INCLUDING SENSORS HOUSED WITHIN A TUBERCLE ON A ROTOR BLADE - A rotary wing aircraft, a rotor blade and a horizon scanning system are provided. The rotary wing aircraft, for example, may include, but is not limited to, a mast, an engine configured to provide rotational force to the mast and a controller. The rotary wing aircraft may further include a rotor blade connected to the mast having a leading edge, a plurality of tubercles positioned on the leading edge of the rotor blade, and a sensor housed within at least one of the plurality tubercles communicatively connected to the controller. | 11-08-2012 |
| 20130009808 | Aircraft Weather Radar with Reduced Heading, Attitude and Range Artifacts - An avionic weather radar system tracks aircraft orientation with respect to acquired scan radar data to correct the display of the weather radar data for range distortion and orientation changes of the aircraft between radar acquisition and display, reducing image artifacts. | 01-10-2013 |
| 20130234884 | SYSTEM AND METHOD TO IDENTIFY REGIONS OF AIRSPACE HAVING ICE CRYSTALS USING AN ONBOARD WEATHER RADAR SYSTEM - Systems and methods of detecting type I ice crystals using an aircraft's onboard weather radar system are disclosed. An exemplary embodiment identifies radar returns having a return level signal strength less than a radar return sensitivity threshold level, determines if at least one of a weather condition and a flight condition concurrently exists with the identified radar returns having the return level signal strength less than the radar return sensitivity threshold level, and identifies a region of airspace potentially having type I ice crystals when the at least one of the weather condition and the flight condition concurrently exists with the identified radar returns having the return level signal strength less than the radar return sensitivity threshold level. | 09-12-2013 |
| 20130328715 | MILLIMETER WAVE RADAR SYSTEM FOR AND METHOD OF WEATHER DETECTION - A system and method relates to a weather detection system using millimeter wave radar data. Processing electronics receives millimeter wave radar (MMWR) data and senses a presence of weather spatial extent using return strength data associated with the MMWR data. The processing electronics uses spectral width data associated with the MMWR data to assign a level to the weather in the spatial extent. | 12-12-2013 |
| 20140118188 | METHODS AND SYSTEMS FOR PRESENTING WEATHER HAZARD INFORMATION ON AN IN-TRAIL PROCEDURES DISPLAY - Systems and methods for improving situational awareness on an in-trails procedures display. A radar system transmits a radar signal and receives and stores weather radar reflectivity values into a three-dimensional buffer. A processor determines whether any of the stored weather reflectivity values indicate the presence of a weather hazard and generates one or more weather hazard icons based on the stored weather reflectivity values. An in-trail procedures display device displays the generated weather hazard icons. Wake vortex information for other aircraft is generated and outputted on the in-trail procedures display. Also, the processor receives a request for an altitude change and generates an alert when the aircraft is determined not to be cleared to transition to the requested altitude based on a projected transition, any existing weather hazards, wake vortices of proximate aircraft, and in-trail procedures. | 05-01-2014 |
| 20140159949 | AIRCRAFT COMPRISING AN ONBOARD WEATHER RADAR ANTENNA PROVIDED WITH INCLINED PANELS - An aircraft comprising a fuselage and a radome fixed to the fuselage. The radome defines a housing and the fuselage comprises a sealed bulkhead closing the housing. A weather radar antenna comprises a main panel. A plurality of peripheral panels are arranged around the main panel, inclined from a planar surface of the main panel and located on the same side of the planar surface. The housing contains the antenna which is mounted on the fuselage through a mechanical support fixed to the fuselage and to the weather radar antenna on the same side of the planar surface as the peripheral panels. A bird strike shield is located between the antenna and the sealed bulkhead. The shield comprises a dome with a top and a base, the base being fixed to the aircraft fuselage. An opening is formed at the top of the dome through which the mechanical support passes. | 06-12-2014 |
| 20140361923 | SYSTEM AND METHOD OF DISPLAYING CONVECTIVE WEATHER ON A WEATHER RADAR DISPLAY - A convective weather graphic element generator system generates graphic elements associated with severe convective weather for presentation on a display on an aircraft. An exemplary system employs a weather radar and a processing system. The processing system determines a value associated with the detected convective weather based on the received weather radar returns detected by the weather radar, compares the value associated with the detected convective weather with a threshold, and generates a graphic element for a region of airspace when the value associated with the detected convective weather exceeds the threshold. The display is configured to concurrently present the weather reflectivity information generated by the weather radar and the graphic element associated with the convective weather, wherein portions of both the presented graphic element and the presented weather reflectivity information of the corresponding area are concurrently visible on the display. | 12-11-2014 |
| 20140361924 | ON-BOARD METEOROLOGICAL RADAR HAVING A ROTATING ANTENNA - A meteorological radar installed on board an aircraft, including a mechanical support fixed to a bulkhead of a nose of the aircraft, wherein an antenna is mounted on the mechanical support to enable turning mobility around an axis of rotation. The antenna includes a pedestal, on which at least one blade, extending radially along the axis of rotation, is installed. A free side of the blade, along which a plurality of radiating elements is distributed, perceptibly has the shape of a portion of conic in a plane including the axis of rotation. Because the blade is mobile only in rotation along the axis of rotation, and the selection of the emission/reception direction is performed electronically, not mechanically, the space and length requirements of the meteorological radar are fixed, whether the meteorological radar is in operation or not, and are determined based on the eccentricity and parameter of the conic. | 12-11-2014 |
| 20160033641 | SYSTEM AND METHOD TO IDENTIFY REGIONS OF AIRSPACE HAVING ICE CRYSTALS USING AN ONBOARD WEATHER RADAR SYSTEM - Systems and methods of detecting type I ice crystals using an aircraft's onboard weather radar system are disclosed. An exemplary embodiment identifies radar returns having a return level signal strength less than a radar return sensitivity threshold level, determines if at least one of a weather condition and a flight condition concurrently exists with the identified radar returns having the return level signal strength less than the radar return sensitivity threshold level, and identifies a region of airspace potentially having type I ice crystals when the at least one of the weather condition and the flight condition concurrently exists with the identified radar returns having the return level signal strength less than the radar return sensitivity threshold level. | 02-04-2016 |
| 20160131739 | DISPLAY SYSTEM AND METHOD USING WEATHER RADAR SENSING - An enhanced vision method uses or an enhanced vision system includes an onboard weather radar system configured to improve angular resolution and/or resolution in range. The onboard weather radar system generates image data representative of the external scene topography of a runway environment associated with radar returns received by the onboard weather radar system. The radar returns are in an X-band or a C-band. The enhanced vision system also includes a display in communication with the onboard weather radar system and is configured to display an image associated with the image data that is generated by the onboard weather radar system. The enhanced vision system can also be used as an enhanced flight vision system. | 05-12-2016 |
| 20110140955 | SYSTEM FOR MEASURING TURBULENCE REMOTELY - A method of predicting turbulence that may involve receiving electromagnetic energy that has traveled along a path subject to the turbulence, with the turbulence altering the electromagnetic energy. A determination may be made as to the alteration caused by the turbulence by filtering the electromagnetic energy as it was received with a velocity of one of a transmitter of the electromagnetic energy or a receiver that received the electromagnetic energy. | 06-16-2011 |
| 20120092213 | GNSS ATMOSPHERIC ESTIMATION WITH FEDERATED IONOSPHERIC FILTER - Methods and apparatus are presented for estimating environmental parameters from GNSS signals in real time. Some embodiments estimate a float solution using a federated ionospheric filter. Some embodiments fix ambiguities for improved estimates. | 04-19-2012 |
| 20120119944 | GNSS ATMOSPHERIC ESTIMATION WITH AMBIGUITY FIXING - Methods and apparatus are presented for estimating environmental parameters from GNSS signals in real time. Some embodiments estimate a float solution using a federated ionospheric filter. Some embodiments fix ambiguities for improved estimates. | 05-17-2012 |
| 20130147659 | SYSTEM FOR DETECTING SEA-SURFACE WIND, USING SATELLITE OBSERVATION, AND A METHOD FOR DETECTING SEA-SURFACE WIND - Systems and methods are provided that involve obtaining emissivity and reflectivity by the ratio of the radiance temperature versus the sea level temperature as observed by a satellite, and may further calculate two reflectivity values observed or simulated by the vertical or horizontal polarized channels of microwave, and then estimate a surface roughness. Further, illustrative implementations may involve obtaining the regression relation expression between the surface roughness and the wind strength and then detecting the sea-surface wind, using the information observed by the satellite again. As such, the sea-surface wind information can be obtained through satellite observation, and the information can be utilized for preventive activities against disaster including typhoon, the energy industry including wind power and the fishery in quasi-real time. | 06-13-2013 |
| 20140300510 | WEATHER DETECTION USING SATELLITE COMMUNICATION SIGNALS - Disclosed is a satellite weather detection system that uses atmospheric precipitation density data. Subscribers detect the signal strength and signal-to-noise ratio of signals that are transmitted from the satellite. Upstream transmit power data is also collected, which is needed to achieve a given SNR at a gateway. The values of the downstream signal strength and signal-to-noise ratio data as well as the upstream transmit power data are normalized and compared with current atmospheric data. The data can be color coded and graphically displayed to show weather patterns. Location and velocity of high precipitation density cells can be tracked to predict movement of storms. | 10-09-2014 |
| 20090295626 | MARITIME CLIMATE INFORMATION SYSTEM AND METHOD FOR COLLECTING AND PROCESSING MARTIME CLIMATE INFORMATION - The present invention discloses a maritime climate information system and a method for collecting and processing the maritime climate information. The system is characterized in that the detecting device, the positioning device and the first maritime wireless network device are disposed on the first maritime vehicle, and respectively used to detect the climate information around the first maritime vehicle, and calculate the coordinate of the first maritime vehicle and transmit the climate information and the coordinate. Through the maritime network structure formed by the second maritime wireless network devices disposed on the second maritime vehicles, the operating interface of each maritime vehicle of this system receives the climate information and the coordinate, and displays an electronic map on which the climate information is displayed. By using this method, this system can provide more accurate and immediate maritime climate information. | 12-03-2009 |
