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Class Information
Number: 342/159
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Clutter elimination
Description: Subject matter wherein unwanted echoes are cancelled from the returned radar signal.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4743910 |
Frequency domain, pulse compression radar apparatus for eliminating clutter |
May. 10, 1988 |
| 4742353 |
Digital processor for radar signals which can perform adaptive suppression of clutter means of a parametric estimator |
May. 3, 1988 |
| 4739327 |
Method and arrangement for the suppression of rain echos in a terrain following radar |
Apr. 19, 1988 |
| 4737788 |
Helicopter obstacle detector |
Apr. 12, 1988 |
| 4728952 |
Radar echo discriminating device |
Mar. 1, 1988 |
| 4719466 |
Adaptive radar signal processor for the detection of useful echo and the cancellation of clutter |
Jan. 12, 1988 |
| 4718028 |
Extremely high speed, real-time background filter for radiation detectors |
Jan. 5, 1988 |
| 4712109 |
Device for the identification of undesirable echoes in radar systems |
Dec. 8, 1987 |
| 4707697 |
High resolution noncoherent radar imager |
Nov. 17, 1987 |
| 4698634 |
Subsurface inspection radar |
Oct. 6, 1987 |
| 4688044 |
Multiple range interval clutter cancellation circuit |
Aug. 18, 1987 |
| 4684950 |
Methods of and circuits for suppressing doppler radar clutter |
Aug. 4, 1987 |
| 4680589 |
Adaptive fast Fourier transform weighting technique to increase small target sensitivity |
Jul. 14, 1987 |
| 4661816 |
Adaptive radar signal processor |
Apr. 28, 1987 |
| 4658255 |
Adaptive radar signal processing apparatus |
Apr. 14, 1987 |
| H205 |
Wide bandwidth radar having improved signal to clutter response characteristics |
Feb. 3, 1987 |
| 4633254 |
Circuit arrangement for post-detection suppression of spurious radar echoes |
Dec. 30, 1986 |
| 4630052 |
Suppressor of second-time-around clutter echoes for MTI pulse radar provided with power oscillator |
Dec. 16, 1986 |
| 4628318 |
Ground clutter suppression technique |
Dec. 9, 1986 |
| 4622555 |
Coded pulse Doppler radar with clutter-adaptive modulation and method therefore |
Nov. 11, 1986 |
| 4607258 |
Radar video dehancer |
Aug. 19, 1986 |
| H108 |
Radar doppler processor using a fast orthogonalization network |
Aug. 5, 1986 |
| 4586043 |
Distribution sensitive constant false alarm rate (CFAR) processor |
Apr. 29, 1986 |
| 4575723 |
Foliage clutter rejector |
Mar. 11, 1986 |
| 4568939 |
Arrangement for compensation of unwanted echoes caused by the movement of a radar device |
Feb. 4, 1986 |
| 4559537 |
Method of tracking target in presence of clutter |
Dec. 17, 1985 |
| 4556887 |
Radar systems |
Dec. 3, 1985 |
| 4536764 |
Method of counting multiple targets in the post detection processing of a radar |
Aug. 20, 1985 |
| 4533915 |
Radar terrain signal suppressor |
Aug. 6, 1985 |
| 4513286 |
Adaptive constant false alarm rate (CFAR) processor |
Apr. 23, 1985 |
| 4472717 |
Intrapulse polarization agile radar system (IPAR) |
Sep. 18, 1984 |
| 4450446 |
Method and system for tracking targets in a pulse doppler radar system |
May. 22, 1984 |
| 4443797 |
Radar display apparatus |
Apr. 17, 1984 |
| 4434424 |
Side lobe canceller for radar systems |
Feb. 28, 1984 |
| 4431993 |
Threshold voltage generator |
Feb. 14, 1984 |
| 4430654 |
Method and apparatus for suppressing clutter |
Feb. 7, 1984 |
| 4427982 |
Radar clutter reduction by use of frequency-diverse, wideband pulse-compression waveforms |
Jan. 24, 1984 |
| 4388622 |
Double sideband linear frequency modulation system for radar applications |
Jun. 14, 1983 |
| 4381508 |
Clutter compensated sidelobe cancelling communications system |
Apr. 26, 1983 |
| 4371873 |
Clutter free synthetic aperture radar correlator |
Feb. 1, 1983 |
| 4369445 |
Automatic ECM video processor |
Jan. 18, 1983 |
| 4338602 |
Semi-active guidance system |
Jul. 6, 1982 |
| 4318100 |
Automatic ground clutter rejection in weather pulse radar system |
Mar. 2, 1982 |
| 4296415 |
Method and apparatus for reducing the effects of scintillation and rejection of clutter in monopulse radars |
Oct. 20, 1981 |
| 4249179 |
Circuit arrangement for displacing the clutter spectrum in a radar receiver |
Feb. 3, 1981 |
| 4234880 |
Adaptive method and a radar receiver for suppression of disturbing portions of the Doppler spectrum |
Nov. 18, 1980 |
| 4234882 |
Method and apparatus for measurement of the contents of a bunker or silo |
Nov. 18, 1980 |
| 4233604 |
Receiver with fixed-echo suppressor |
Nov. 11, 1980 |
| 4231037 |
Radar clutter suppressor |
Oct. 28, 1980 |
| 4212012 |
Continuous wave radar |
Jul. 8, 1980 |
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