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Class Information
Number: 342/171
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Testing or calibrating of radar system > By simulation > Doppler
Description: Subject matter wherein the radar apparatus under test utilizes the change of frequency of its transmitted signals caused by the time rate of change of the effective distance travelled by the signals between the source of signal transmission and the point of observation.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8559491 Methods and devices for determining the impulse response of propagation channels involving emitters, reflectors and sensors that are fixed or mobile Oct. 15, 2013
8552908 Method and apparatus for implementing high fidelity Doppler phase and time effects in advanced EW stimulus systems Oct. 8, 2013
8379782 Mobile radio channel estimation Feb. 19, 2013
8077098 Antenna test system Dec. 13, 2011
8050338 Doppler dependent power control and sub-carrier allocation in OFDM multiple access systems Nov. 1, 2011
7821442 System and method of analyzing radar information Oct. 26, 2010
7768963 System and method of improving sampling of WLAN packet information to improve estimates of Doppler frequency of a WLAN positioning device Aug. 3, 2010
7668693 Method for the evaluation of measurement uncertainty, and a device and system thereof Feb. 23, 2010
7653347 Doppler compensation control for radio transmission Jan. 26, 2010
7639171 Radar system and method of digital beamforming Dec. 29, 2009
7365677 Compact radar test range Apr. 29, 2008
7348919 System and method for evaluating the performance of a scan strategy Mar. 25, 2008
7154435 Sparse numerical array feed for compact antenna and RCS ranges Dec. 26, 2006
7129839 Device for monitoring an area Oct. 31, 2006
7035315 Doppler corrected communications receiver and method of removing doppler frequency shift Apr. 25, 2006
6930627 Radio-frequency digital/analog converter system and method Aug. 16, 2005
6753806 Methods and apparatus to compensate for zero Doppler returns Jun. 22, 2004
6748351 Modular covert remote electronic warfare simulator Jun. 8, 2004
6553007 Compensation of doppler shift in a mobile communication system Apr. 22, 2003
6496139 Method for simulating echo signals for doppler radar systems Dec. 17, 2002
6392586 Car radar testing May. 21, 2002
6384771 Automated target generator range and doppler calculator May. 7, 2002
6346909 System for generating simulated radar targets Feb. 12, 2002
6301552 Radar/IFF simulator circuit for desktop computer Oct. 9, 2001
6150976 Synthesis of overlapping chirp waveforms Nov. 21, 2000
6075480 Down range returns simulator Jun. 13, 2000
6067041 Moving target simulator May. 23, 2000
6046696 Apparatus and process for remote certification of doppler radar speed measuring devices Apr. 4, 2000
6037897 Apparatus and methods for moving target indicator simulation Mar. 14, 2000
5973638 Smart antenna channel simulator and test system Oct. 26, 1999
5940523 Method of moment estimation and feature extraction for devices which measure spectra as a function of range or time Aug. 17, 1999
5892479 Electromagnetic target generator Apr. 6, 1999
5886663 Doppler-based radar system self test circuit and related method Mar. 23, 1999
5886626 System and method for performing jamming testing on communication networks Mar. 23, 1999
5839096 Self-implementing diagnostic system Nov. 17, 1998
5786786 Photonic radar decoy Jul. 28, 1998
5721554 Near field planar wave generation for electronic range testing Feb. 24, 1998
5518400 Portable radar target simulator May. 21, 1996
5457463 Radar return signal simulator Oct. 10, 1995
5432516 Radar obstacle detection system with self test Jul. 11, 1995
5421728 In-flight radar warning receiver training system Jun. 6, 1995
5384572 Testing of airborne windshear radars Jan. 24, 1995
5351054 Radar target with delayed reply means Sep. 27, 1994
5223840 Low cost radar target simulator for remote radar testing Jun. 29, 1993
5177488 Programmable fiber optic delay line, and radar target simulation system incorporating the same Jan. 5, 1993
5160264 Radar target simulator Nov. 3, 1992
5133663 Portable automatic radar simulator Jul. 28, 1992
5117231 Doppler spectrum synthesizer May. 26, 1992
4972192 Constant amplitude doppler producing radar reflector Nov. 20, 1990
4818955 System for generating signals subject to statistically random frequency perturbations Apr. 4, 1989

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