Class / Patent application number | Description | Number of patent applications / Date published |
342169000 | By simulation | 22 |
20080316087 | Simulator For Internal Antennas in Telemetry Devices - Systems and methods are described for simulating an internal antenna within a telemetry device. The simulator device includes a housing having at least one opening, wherein the housing is configured to accommodate close proximity placement of the telemetry device. The simulator device also includes a simulator or test antenna within the housing that corresponds to an internal antenna within a housing of the telemetry device. The simulator device further includes a radio frequency (RF) connector coupled to the simulator housing, for connection to a communication device. The simulator device also includes a fastening mechanism to secure the simulator device over the telemetry device so that the simulator antenna is adjacent to the internal antenna. The proximity of the simulator antenna to the internal antenna provides simulator device RF characteristics that simulate internal antenna RF characteristics. | 12-25-2008 |
20090058715 | METHODS AND SYSTEMS FOR GENERATING VIRTUAL RADAR TARGETS - A virtual radar target generator comprises a transceiver and a controller coupled to the transceiver, wherein the transceiver is adapted to receive a signal transmitted from a radar antenna, store signal information representative of the received signal within a digital radio frequency memory, and transmit an output signal representative of a virtual target such that at least a fraction of the output is received by the radar antenna, and wherein the controller is adapted to determine a timing of the transmission of the output signal in response to a virtual distance between the virtual target and the radar antenna, a required virtual target direction and direction information representative of a direction of the radar antenna. | 03-05-2009 |
20090066560 | METHOD AND DEVICE FOR SIMULATING RADIO NAVIGATION INSTRUMENTS - The device ( | 03-12-2009 |
20090237295 | Method for implementing continuous radio frequency (RF) alignment in advanced electronic warfare (EW) signal stimulation systems - A method of providing an integrated approach to automated system alignment is set forth, which may include in an exemplary embodiment: providing amplifier compression alignment, (which may include characterizing and/or compensating for a parasitic effect); providing continuous internal alignment of phase and amplitude of a synthetic stimulus instrument (SSI) output signal; providing external measurement port alignment; and providing transfer alignment of internal measurement paths. According to another exemplary embodiment, a receiver apparatus may include: a dual-channel coherent measurement receiver which may include at least one internal channel operative to measure time-division-multiplexed (TDM) feedback signals from each signal source of a synthetic stimulus instrument (SSI); and at least one external channel operative to make direct measurement at an external alignment port output. | 09-24-2009 |
20090243914 | Methods and Simulation Tools for Predicting GPS Performance in the Broad Operating Environment - To facilitate GPS hardware selection and evaluate performance of vehicle integrated GPS hardware, including various types of GPS antennas and receivers, within different vehicle operating environments, embodiments of the invention are used to provide a simulator which does not require physical GPS hardware to simulate GPS system performance. Preferably, the simulator randomly generates one or more GPS system link budget variables, within predetermined performance bounds, in order to predict GPS system performance in a specific vehicle operating environment for a given antenna radiation pattern and/or GPS receiver. The simulator employs a Monte Carlo technique to evaluate the GPS system performance based on generated pools of link budget variables. | 10-01-2009 |
20090251361 | Coherent Frequency Modulated Continuous Wave Radar - A frequency modulated continuous wave (FMCW) radar is described. The radar includes a first discriminator for receiving a portion of the swept frequency signal generated by a frequency sweep generator and for producing a reference difference-frequency signal of frequency equal to the difference between the frequency of the swept frequency signal and the frequency of a time displaced swept frequency signal derived from the swept frequency signal. An analogue-to-digital converter is provided for sampling the target difference-frequency signal at a rate derived from the frequency of the reference difference-frequency signal. A processor ( | 10-08-2009 |
20100127917 | SIMULATING MEASUREMENT APPARATUS AND METHOD - The invention discloses a simulating measurement apparatus. The simulating measurement apparatus comprises a storing module, a controlling module, and a simulating module. The storing module is used for storing simulating parameter information. The simulating parameter information comprises at least one emitting simulating parameter, at least one receiving simulating parameter, and a radio beam channel transmitting simulating parameter. The controlling module generates a controlling signal according to the simulating parameter information. The simulating module generates a simulating measurement result of radio beams transmitted in the space between an emitting antenna and a receiving antenna by simulating the transmitting behavior of a plurality of RE signals according to the controlling signal. | 05-27-2010 |
20100231439 | SYSTEM AND METHOD FOR INCREASING SPECTRAL RESOLUTION - A system and method for extrapolating sampled radar data is contemplated that in one aspect allows spectral data to be increased without increasing scan time and in another aspect allows scan time to be decreased without decreasing radar data quality. Extrapolation is carried out by extending a sequence of In-Phase and Quadrature-Phase samples by appending additional samples to each end of the sequence. Extrapolated samples are selected to maintain the statistical properties of the original sequence. Applying conventional windowing techniques to the extrapolated sample set results in a weighted extrapolated sequence having a corresponding Doppler spectrum with an increased spectral resolution. | 09-16-2010 |
20120098696 | MULTIBAND RADAR DETECTOR CALIBRATOR - The invention discloses the multiband radar detector calibrator. The calibrator includes a user interface with a keypad and a display, a microcontroller unit that includes pre-stored values in the database and the algorithm-decision logic, digital to analog converter, signal conditioning circuit and voltage controlled oscillators, with their appropriate antennas. The core of invention is the generation of a calibrating microwave signal which resembles the microwave input that a radar detector device would receive in an encounter with a radar device in the field. | 04-26-2012 |
20120176269 | Systems and Methods for Protection from Explosive Devices - Devices, systems and methods are disclosed which relate to reproducing and testing a simulation of electromagnetic propagation of multiple Radio Frequency (RF) jammers in an environment to determine the effectiveness of the jammer configuration. In some configurations, a multi-jammer simulator renders the electromagnetic propagation of a multiple jammer scenario, including multiple RF jammers onboard vehicles traveling through the environment, and records a multi-waveform output of the multiple jammer scenario to a recordable medium. A multi-waveform generator reads the multi-waveform output from the recordable medium and physically reproduces a plurality of waveforms consistent with the multi-waveform output. The plurality of waveforms is substantially similar to a physical reproduction of the multiple jammer scenario. An RF receiver, placed within a range of effectiveness of the multi-waveform generator, attempts to receive a signal from an RF transmitter during reproduction of the multi-waveform output. Results are recorded in the form of successes and failures associated with the attempts and compared with results from the simulation. | 07-12-2012 |
20120235858 | RADAR APPARATUS CALIBRATION VIA INDIVIDUAL RADAR COMPONENTS - A method, system and computer program product for calibrating and operating a radar apparatus provides for obtaining calibration response data from, for example, a radar cylinder and a plurality of radar columns, prior to assembling the radar cylinder and plurality of radar columns into an assembled radar apparatus. The calibration response data for the exemplary radar cylinder and the plurality of radar columns is evaluated to provide a simulated response of the assembled radar apparatus. Actual measured responses from the assembled radar apparatus may then be correlated with the simulated response through use of a look-up table. The particular method, system and program product for calibrating and operating the radar apparatus provides for avoidance of field calibration of the assembled radar apparatus, which is generally neither desirable nor feasible under hostile conditions. | 09-20-2012 |
20140152490 | Method and Arrangement for the Detection of an Object in a Radar Field - A method and arrangement for detecting an object in a radar field ( | 06-05-2014 |
20160077196 | RECEIVER SYSTEM AND METHOD FOR RECEIVER TESTING - A receiver system which may be implemented in an integrated circuit device and suitable for use in automotive radar systems such as collision avoidance systems, includes self test circuitry whereby a local oscillator test signal is generated by an on-board frequency multiplier and mixed in a down-conversion mixer with an RF test signal. The RF test signal is generated on the device by up-conversion of an externally generated low-frequency test signal with the local oscillator test signal. Baseband components may also be checked using test signals of suitable frequency divided down from the local oscillator test signal by a programmable frequency divider. This self test arrangement obviates any need for applying externally generated RF test signals to the IC device. | 03-17-2016 |
342170000 | Microwave | 1 |
20160109559 | INTEGRATED CIRCUIT, RADAR DEVICE AND METHOD OF CALIBRATING A RECEIVER - An integrated circuit for a radar device comprises at least one transmitter and at least one receiver. The integrated circuit comprises: a direct digital synthesiser, DDS, configured to output a control signal; and a multiplier configured to receive a local oscillator input signal and a further input signal from the DDS. In a first mode of operation, the DDS and multiplier cooperate to generate at least one transmitter signal to be transmitted from the radar device; and in a second mode of operation the DDS and multiplier cooperate to generate at least one low frequency modulated transmitter signal to be internally routed to the at least one receiver for calibrating the at least one receiver. | 04-21-2016 |
342171000 | Doppler | 5 |
20100109940 | Simulating a Radar Signal Reflected From a Moving Target | 05-06-2010 |
20130002474 | SYSTEMS AND METHODS FOR NEAR FIELD TARGET SIMULATION - A simulation device and a system and method for using the simulation device are disclosed. The simulation device may contain a plurality of antenna elements positionable on or near a radar or other sensing device. The simulation device may be configured to control the plurality of antenna elements to transmit signals that simulate a reflection of an electromagnetic signal off of one or more targets of particular sizes at particular azimuths, elevations, distances, trajectories, and/or velocities. | 01-03-2013 |
20140070981 | APPARATUS FOR TESTING PERFORMANCE OF SYNTHETIC APERTURE RADAR - An apparatus for testing the performance of a synthetic aperture radar is provided. The apparatus for testing the performance of a synthetic aperture radar includes: a three-axis motion platform that is coupled to an antenna and driven in roll, pitch, and yaw directions so as to reproduce motion components generated from a pointing plane of the antenna; a target simulator configured to reproduce a ground target; and a system simulator that allows the three-axis motion platform and the target simulator to work in conjunction with each other in real time, and controls the three-axis motion platform and the target simulator. Here, the three-axis motion platform may include a three-axis driver that determines the attitude of the three-axis motion platform, based on position and speed information received from the system simulator. The target simulator may include a target modulator that adjusts the amplitude of an output signal, performs range and phase delays, and reproduces a Doppler component, is based on simulation target information received from the system simulator. | 03-13-2014 |
20150362584 | FMCW Radar Self-Test - A self-testing method of a frequency-modulated continuous-wave(FMCW) radar device. A transmission signal having an object detection signal and a self-test signal superimposed on the object detection signal is transmitted. The self-test signal represents at least one virtual target. A reception signal is received. The reception signal is a received version of the transmission signal. Presence of the at least one virtual target in the reception signal is determined. A lack of presence of the virtual target in the reception signal provides an indication of hardware failure of the FMCW radar device. | 12-17-2015 |
20150369905 | SYSTEMS AND METHODS FOR NEAR FIELD TARGET SIMULATION - A simulation device and a system and method for using the simulation device are disclosed. The simulation device may contain a plurality of antenna elements positionable on or near a radar or other sensing device. The simulation device may be configured to control the plurality of antenna elements to transmit signals that simulate a reflection of an electromagnetic signal off of one or more targets of particular sizes at particular azimuths, elevations, distances, trajectories, and/or velocities. | 12-24-2015 |
342172000 | With delay | 3 |
20090058716 | PRECISION RADIO FREQUENCY DELAY DEVICE - A method of delaying propagation of a radio frequency (RF) signal through a circuit is described. The method comprises receiving data that represents a delay time interval, providing an RF signal when a start pulse triggers a memory device, initiating a count through the delay time interval based on receipt of a start pulse, and outputting the RF signal after the delay time interval has expired. | 03-05-2009 |
20090309783 | MILLIMETER WAVE RADAR TARGET SIMULATION SYSTEMS AND METHODS - A millimeter wave radar target simulation system and method. The system includes a down-converter that converts a millimeter wave radar signal to an intermediate frequency, an electrical-to-optical modulator that modulates an optical signal based on the down-converted signal, an optical-to-electrical demodulator that demodulates an optical signal to an electrical signal, an optical delay line serving to delay a signal passing from the electrical-to-optical modulator to the optical-to-electrical demodulator, and an up-converter that converts the electrical signal from the optical-to-electrical demodulator to a frequency that simulates a millimeter wave target return. The method includes receiving a millimeter wave radar signal, down-converting the radar signal to an intermediate frequency, modulating the down-converted signal to an optical signal, delaying the optical signal, demodulating the delayed optical signal, and up-converting the demodulated signal to a signal having a frequency that simulates a millimeter wave radar target return. | 12-17-2009 |
20150035697 | RADAR CALIBRATION SYSTEM FOR VEHICLES - Disclosed herein is a radar calibration system for vehicles. The radar calibration system for vehicles includes a target simulator receiving a radar signal through a reception antenna, delaying the received signal through a delay line, and transmitting the delayed signal through a transmission antenna, and a radar apparatus transmitting the radar signal to the target simulator through a transmission antenna, receiving the delayed signal from the target simulator through a plurality of reception antennas, calculating phase differences among the delayed signals received through the plurality of reception antennas, and generating and storing phase correction values of reception channels of the plurality of reception antennas to correct the calculated phase differences. | 02-05-2015 |