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Class Information
Number: 342/18
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Radar ew (electronic warfare) > Eccm (electronic counter-countermeasures, i.e., antijamming) > Radar reacts to jamming > By changing frequency
Description: Subject matter wherein the radar system changes its operating frequency in response to being jammed.

Patents under this class:

Patent Number Title Of Patent Date Issued
8559865 Method and apparatus for providing jammer detection in a receiver Oct. 15, 2013
8350745 Anti jamming system Jan. 8, 2013
8350746 Anti jamming system Jan. 8, 2013
7184493 Pulse sorting apparatus for frequency histogramming in a radar receiver system Feb. 27, 2007
7024188 Wireless communications system with detection of foreign radiation sources Apr. 4, 2006
6995660 Commander's decision aid for combat ground vehicle integrated defensive aid suites Feb. 7, 2006
6937639 System and method for positioning pulses in time using a code that provides spectral shaping Aug. 30, 2005
6933878 Wide bandwidth radar Aug. 23, 2005
6798375 Radar device and a method for suppressing interference in a radar device Sep. 28, 2004
6748351 Modular covert remote electronic warfare simulator Jun. 8, 2004
6650270 Radar system Nov. 18, 2003
6639541 Device and method for detecting, measuring, and reporting low-level interference at a receiver Oct. 28, 2003
6486824 Tracking radar receiver Nov. 26, 2002
6313782 Coded phase modulation communications system Nov. 6, 2001
6141371 Jamming suppression of spread spectrum antenna/receiver systems Oct. 31, 2000
5892477 Anti-jam FM/CW radar Apr. 6, 1999
5539407 Radar apparatus provided with ECCM facilities Jul. 23, 1996
5537117 Closed loop countermeasure to passive direction finding and location of radar transmitters using Doppler techniques Jul. 16, 1996
5534867 Open loop countermeasure to passive direction finding and location of radar transmitters using Doppler techniques Jul. 9, 1996
5438332 Method of hardening transmissions, in particular between a control station and a transponder, and a device implementing the method Aug. 1, 1995
5377222 Frequency agile radio Dec. 27, 1994
5311541 Frequency agile radio May. 10, 1994
5291202 Noise radars Mar. 1, 1994
5168215 Instantaneous frequency measurement apparatus and method Dec. 1, 1992
5099194 Digital frequency measurement receiver with bandwidth improvement through multiple sampling of real signals Mar. 24, 1992
5099243 Digital frequency measurement receiver with bandwidth improvement through multiple sampling of complex signals Mar. 24, 1992
5017921 Radar system and a method for operating a radar system May. 21, 1991
4996532 Digital beam forming radar system Feb. 26, 1991
4358766 Jamming signal reduction system Nov. 9, 1982
4328497 Method and system for jamming analysis and transmission selection May. 4, 1982
4135189 Random frequency radar system Jan. 16, 1979
3992709 Doppler radar Nov. 16, 1976
3981012 Random frequency radar systems Sep. 14, 1976

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