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Class Information
Number: 342/39
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Air traffic control > Secondary surveilance radar (ssr) or air traffic control radar beacon system (atcrbs) > With side lobe suppression
Description: Subject matter including circuitry means to exclude or greatly attenuate a portion of the beam for an antenna, other than the main lobe.










Patents under this class:

Patent Number Title Of Patent Date Issued
8674872 Method for increasing the time for illumination of targets by a secondary surveillance radar Mar. 18, 2014
7936300 Method for reducing multipath propagation effects during the processing of replies in mode "S" May. 3, 2011
7492312 Multiplicative mismatched filters for optimum range sidelobe suppression in barker code reception Feb. 17, 2009
6809679 Surveillance system and method for aircraft approach and landing Oct. 26, 2004
6282487 Runway reservation system Aug. 28, 2001
6094169 Multilateration auto-calibration and position error correction Jul. 25, 2000
5539407 Radar apparatus provided with ECCM facilities Jul. 23, 1996
5528244 Processing for mode S signals suffering multipath distortion Jun. 18, 1996
5525990 Coherent antenna sidelobe suppression system Jun. 11, 1996
5512900 Aircraft landing systems Apr. 30, 1996
5481270 Radar with adaptive range sidelobe suppression Jan. 2, 1996
5463398 Method and apparatus for multiple reply rejection when decoding transponder replay signals Oct. 31, 1995
5374932 Airport surface surveillance system Dec. 20, 1994
5302953 Secondary radar antenna operating in S mode Apr. 12, 1994
5218365 Beacon interrogator beamwidth control using sidelobe signal integration in transponders Jun. 8, 1993
5173706 Radar processor with range sidelobe reduction following doppler filtering Dec. 22, 1992
4970518 Air traffic control radar beacon system multipath reduction apparatus and method Nov. 13, 1990
4689623 Monopulse processing systems Aug. 25, 1987
4656477 Perfectioning in reply type radar systems, in particular the SSR type Apr. 7, 1987
4540986 Video processor for air traffic control beacon system Sep. 10, 1985
4468667 Detection of an identification signal contained within a composite signal, without false signal recognition Aug. 28, 1984
4467326 Method and apparatus for preventing the response of a radar beacon to receive radar pulses originating from the side lobes of a transmitter and an arrangement Aug. 21, 1984
4316190 Secondary surveillance radar Feb. 16, 1982
4296414 P-I-N type diode high frequency switch for secondary radar interrogation devices and transponders Oct. 20, 1981
4135187 Transponder decoder/encoder circuitry Jan. 16, 1979
4100544 Beacon system employing ramped gain receiver Jul. 11, 1978
4075631 System for identifying objects equipped with an automatic transponder Feb. 21, 1978
4027307 Collision avoidance/proximity warning system using secondary radar May. 31, 1977











 
 
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