| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 342134000 | With pulse modulation | 24 |
| 20080231498 | Symmetrical Multi-Path Method For Determining the Distance Between Two Transmitter-Receivers - The invention relates to a symmetrical multi-path method for determining the spatial distance between two transmitter-receivers. Both transmitter-receivers set off at least one signal round in each case. A signal round comprises the steps:
| 09-25-2008 |
| 20090189800 | Pulse radar ranging system - A pulse radar ranging system having a measurement channel and a reference channel is described. In the measurement channel containing an antenna and a measurement target, the normal measurement is performed by processing an echo from the target. In the reference channel containing signal delay means, a reference echo is processed to obtain temperature compensation information. | 07-30-2009 |
| 20100019953 | Pulse Radar Ranging System - In a pulse radar ranging system, directional coupling means are configured to convey transmit pulses to be transmitted via an antenna to a target and to convey target echoes received by the antenna to a signal mixer that generates an intermediate frequency signal. To embed a reference measurement into the target measurement, the directional coupling means include a four-port circulator with an additional port arranged between a port receiving the transmit pulses and a port coupled to the antenna. A reference line is coupled to the additional port for generating reference echo pulses in response to input pulses. The circulator is configured to split a portion of the transmit pulses to the reference line and to convey there reference echo pulses to the antenna. | 01-28-2010 |
| 20100225525 | RADAR DEVICE AND A METHOD OF DETECTING A TARGET OBJECT USING RADAR - This disclosure provides a radar device including a transmission module for sequentially transmitting two or more kinds of pulse signals having different pulse widths by a predetermined transmitting pattern, a memory module for storing a predetermined number of pulse reply data corresponding to each kind of the pulse signals, the predetermined number being number of transmissions of the kind of the pulse signals, a pulse integrating module for performing pulse integration of the pulse reply data stored in the memory module for each kind of the pulse signal, and an image generating module for generating a radar image using the results of the pulse integration. | 09-09-2010 |
| 20120235857 | RADAR APPARATUS SUPPORTING SHORT AND LONG RANGE RADAR OPERATION - Disclosed is a radar apparatus supporting short range and long range radar operations, wherein a plurality of short range transmitting chirp signals and a plurality of long range transmitting chirp signals are generated by a predetermined modulation scheme and is transmitted to an object through at least one transmitting array antenna and signals reflected from the object is received through at least one receiving array antenna, and the plurality of long range transmitting chirp signals have transmission power larger than that for the plurality of short range transmitting chirp signals. | 09-20-2012 |
| 20130285848 | Integrated and Configurable Radar System - An integrated radar system includes a processing module and a radar device. The radar device includes an antenna module, a configurable shaping module, and a configurable transceiver module. The processing module generates an outbound signal and a control signal to configure the integrated radar system. The configured transceiver module converts the outbound signal into an outbound wireless signal. The configured shaping module shapes the outbound wireless signal into a shaped signal. The antenna module transmits the shaped signal and then receives an inbound radar signal. The configured shaping module shapes the inbound radar signal into an inbound wireless signal. The configured transceiver module converts the inbound wireless signal into an inbound symbol stream. The processing module determines location information regarding an object based on the inbound symbol stream. | 10-31-2013 |
| 20130342383 | INTERFERENCE REJECTION DEVICE, RADAR DEVICE, AND TARGET FINDING METHOD - An interference rejection device includes a change amount calculator, a detector, and a rejecter. The change amount calculator is configured to find change amounts in at least one of amplitude and phase of received signals of a plurality of sweeps in a distance direction between a first distance and a second distance. The detector is configured to detect radar interference occurring between the first distance and the second distance by comparing the change amounts calculated by the change amount calculator between the plurality of sweeps. The rejecter is configured to reduce the amplitude of the received signal corresponding to a position of the radar interference. | 12-26-2013 |
| 20140022114 | PULSE RADAR APPARATUS AND CONTROL METHOD FOR THE SAME - A pulse radar apparatus and a control method therefor are provided that can detect information about a target with a high degree of accuracy by allowing detection of target information at all times and updating a replica signal of a noise signal in order. | 01-23-2014 |
| 342135000 | Digital (e.g., with counter) | 9 |
| 20090009384 | Radar Device and Processing Method of the Same - A radar device has a clock generator ( | 01-08-2009 |
| 20090021420 | Transmitting Signals for Time of Arrival Estimation - A method generates ( | 01-22-2009 |
| 20100127916 | SHAPE MEASUREMENT INSTRUMENT AND SHAPE MEASUREMENT METHOD - A shape measurement instrument includes a plurality of transmitters | 05-27-2010 |
| 20100265121 | Short Distance Range Resolution in Pulsed Radar - Pulsed radar detects the presence and range of very short-range objects via small perturbations in phase and/or amplitude of relatively long duration coherently related transmit pulses. In one embodiment, echoes forming a received signal waveform from a sampling baseband radar receiver are processed at audio frequency to look for perturbations of the phase of the time-stretched received radar signal while the radar is still transmitting a long-duration pulse. In a second embodiment, the time-stretched received signal is processed to look for perturbations in the amplitude of the received radar signal. Small amplitude perturbations due to constructive and destructive interference of the transmitted and reflected signals occur in the receiver when objects are very close to the radar if the receiver is not heavily saturated. These same techniques can also be used to achieve highly accurate ranging of long-distance objects and detection of overlapping echoes from multiple objects. | 10-21-2010 |
| 20110102244 | DIGITAL RADAR OR SONAR APPARATUS - A radar or sonar system amplifies the signal received by an antenna of the radar system or a transducer of the sonar system is amplified and then subject to linear demodulation by a linear receiver. There may be an anti-aliasing filter and an analog-to-digital converter between the amplifier and the linear receiver. The system may also have a digital signal processor with a network stack running in the processor. That processor may also have a network interface media access controller, where the system operates at different ranges, the modulator may produce pulses of two pulse patterns differing in pulse duration and inter-pulse spacing, those pulse patterns are introduced and used to form two radar images with the two images being derived from data acquired in a duration not more than twenty times larger than the larger inter-pulse spacing, or for a radar system, larger than one half of the antenna resolution time. One or more look-up tables may be used to control the amplifier. The radar system may generate digital output which comprises greater than eight levels of radar video. | 05-05-2011 |
| 20120262332 | RANGE SIDE LOBE REMOVAL DEVICE, SIGNAL-PROCESSING DEVICE, RADAR DEVICE PROVIDED WITH THE SIGNAL-PROCESSING DEVICE, AND METHOD OF REMOVING RANGE SIDE LOBE - This disclosure provides a range side lobe removal device, which includes a pulse compressor for acquiring a reception signal from a radar antenna and generating a pulse-compressed signal by performing a pulse compression of the reception signal, a pseudorange side lobe generator for generating a pseudo signal of range side lobes of the pulse-compressed signal based on the reception signal, and a signal remover for removing a component corresponding to the pseudo signal from the pulse-compressed signal. | 10-18-2012 |
| 20130147655 | RADAR APPARATUS - A radar apparatus transmits a high-frequency transmission signal, and receives a signal of a reflective wave reflected by a target. Given a first code sequence of a first code length, a second code sequence of a second code length which is longer than the first code sequence, and a third code sequence obtained by inverting each code of the first code sequence, a first transmission signal obtained by modulating the first code sequence, a second transmission signal obtained by modulating the second code sequence, a third transmission signal obtained by modulating the third code sequence and a fourth transmission signal obtained by modulating the second code sequence are generated in a first transmission period, a second transmission period, a third transmission period and a fourth transmission period respectively. | 06-13-2013 |
| 20140168005 | PULSE RADAR RANGING APPARATUS AND RANGING ALGORITHM THEREOF - A pulse radar ranging apparatus and a ranging algorithm thereof are provided. The pulse radar ranging apparatus includes a radio frequency pulse generator, a radio frequency filter, a radio frequency switch and a transceiver aerial. The radio frequency pulse generator generates a pulse signal. The radio frequency filter receives the pulse signal and generates a high-pass filter signal, wherein the high-pass filter signal includes a radio frequency pulse reference signal. The radio frequency switch controls an output of the radio frequency pulse reference signal. The transceiver aerial transmits the radio frequency pulse reference signal. The radio frequency pulse reference signal contacts an object and generates a return signal, and the transceiver aerial receives the return signal. The ranging algorithm processes and analyzes the signals obtained by the pulse radar ranging apparatus, and calculates a distance between pulse radar ranging apparatus and the object by using polynomial interpolation. | 06-19-2014 |
| 342136000 | With plural fixed range gates | 1 |
| 20100265122 | RADAR SYSTEM - A radar system comprising a transmitter to transmit radar signals into a region, a receiver to receive return signals of said radar signals reflected from within the region wherein the transmitter and receiver are adapted for location on a structure at a wind farm, and a processor to process the return signals to extract wind farm associated data for said region. | 10-21-2010 |
| 342137000 | With variable pulse repetition frequency (PRF) or pulse width | 5 |
| 20080309547 | Method and Apparatus for Optimizing Emission in Pulse Echo Methods - Emission values of pulse echo methods known to this point in time, especially those, which are used in industrial measurements technology for fill level measurements, frequently reach the allowable limit values. To avoid possible radio permitting of such measuring devices, the invention provides a method and a circuit for optimizing emission of broadband transmission pulses of a pulse echo method, wherein the transmission pulses are transmitted with a pre-selected pulse repetition frequency. The method and circuit of the invention provide that the polarity of a pulse is switched with each cycle of the pulse repetition frequency, depending on a random sequence, or that individual pulses are suppressed with each cycle of the pulse repetition frequency, depending on a random sequence. | 12-18-2008 |
| 20080316086 | METHOD AND SYSTEM FOR RADIO DETECTION AND RANGING INTRUSION DETECTION SYSTEM - A RADAR system including a set of RADAR apparatuses is disclosed. Each apparatus includes a processor, a pulse unit in signal communication with the processor, a waveform signal generator in signal communication with the pulse unit, and a set of radar antennas in signal communication with the waveform signal generator. The waveform signal generator is capable of generating a waveform signal in response to pulses provided by the pulse unit. The set of antennas is capable of transmitting a burst of microwave energy in response to each waveform signal and to receive a plurality of reflected bursts associated with the transmitted bursts. An acquisition unit is configured to develop and amplify a finite window integral associated with each reflected burst, the acquisition unit in signal communication with the set of antennas and a pre-processor configured to digitize and store information relating to each finite window integral for subsequent processing. | 12-25-2008 |
| 20090212997 | Method for measuring a distance running time - A method for ascertaining the distance on the basis of the travel-time of high-frequency measuring signals, wherein at least one periodic, pulsed, transmission signal having a pulse repetition frequency is transmitted and at least one reflected measuring signal is received. The transmission signal and the reflected measuring signal are transformed by means of a sampling signal produced with a sampling frequency into a time-expanded, intermediate-frequency signal having an intermediate-frequency. The time-expanded, intermediate-frequency signal is filtered by means of at least one filter and a filtered, intermediate-frequency signal is produced, wherein the intermediate-frequency is matched to a limit frequency and/or a center frequency of the filter. The matching of the filter to the intermediate-frequency of the time-expanded measuring signal results, reducing production costs. | 08-27-2009 |
| 20130141270 | ULTRA-WIDEBAND SHORT-PULSE RADAR WITH RANGE ACCURACY FOR SHORT RANGE DETECTION - An ultra-wideband (UWB) radar transmitter apparatus comprises a pulse generator configured to produce from a sinusoidal input signal a pulsed output signal s having a series of baseband pulses with a first pulse repetition frequency (PRF). The pulse generator includes a plurality of components that each have a nonlinear electrical reactance. A signal converter is coupled to the pulse generator and configured to convert the pulsed output signal into a pulsed radar transmit signal having a series of radar transmit pulses with a second PRF that is less than the first PRF. | 06-06-2013 |
| 20130278455 | EFFICIENT PULSE DOPPLER RADAR WITH NO BLIND RANGES, RANGE AMBIGUITIES, BLIND SPEEDS, OR DOPPLER AMBIGUITIES - A Doppler radar system that avoids blind ranges, range ambiguities, blind speed and/or Doppler ambiguities. Pulse width, repetition interval and pulse type are varied from pulse to pulse within a coherent processing interval. | 10-24-2013 |
| 342139000 | Combined with determining direction | 2 |
| 20120056775 | Method for Detecting Wind Power Plants Using a Radar System - A method for detection of wind power installations using a radar installation is provided. The method involves transmitting a number N of predetermined sequences of modulated transmission pulses at a predetermined pulse repetition frequency successively in time and receiving and processing transmission pulses reflected by an object to determine whether the object is a wind power installation. | 03-08-2012 |
| 342140000 | With azimuth and elevation determination | 1 |
| 20150061921 | TWO-CHANNEL MONOPULSE RADAR FOR THREE-DIMENSIONAL DETECTION - An apparatus for determining the position of a target object using a two-channel monopulse radar. The radar may include two transmitting antennas and one common receiving antenna disposed in a coplanar arrangement. The transmitting antennas may be positioned on the focal plane of the radar along a focal plane axis that extends through, and that is perpendicular with, a boresight axis of the radar. The transmitting antennas may be spaced apart from one another in a first dimension a distance equal to about one half of one wavelength of the radar's center operating frequency. One of the transmitting antennas may be squinted at an angle of θ | 03-05-2015 |
