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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 |
| 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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