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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 |
| 5373297 |
Microwave repeater with broadband active and/or passive isolation control |
Dec. 13, 1994 |
| 5351055 |
Radar apparatus |
Sep. 27, 1994 |
| 5345242 |
Clutter rejection using connectivity |
Sep. 6, 1994 |
| 5337055 |
Method and equipment for adjusting a radar detection threshold |
Aug. 9, 1994 |
| 5327141 |
Clutter removal by polynomial compensation |
Jul. 5, 1994 |
| 5323161 |
Method of assessing radar target pulses |
Jun. 21, 1994 |
| 5317320 |
Multiple radar interference suppressor |
May. 31, 1994 |
| 5311192 |
Polarization ECCM technique for radar systems |
May. 10, 1994 |
| 5294933 |
Wideband radar system utilizing adaptive interference canceler |
Mar. 15, 1994 |
| 5280288 |
Interference avoidance system for vehicular radar system |
Jan. 18, 1994 |
| 5264855 |
Technique for stationary radar target discrimination |
Nov. 23, 1993 |
| 5257028 |
Method of extracting phase errors caused by the atmosphere in the backscatter signal of a coherent imaging radar system carried by a carrier from radar raw data and apparatus for carrying out |
Oct. 26, 1993 |
| 5235339 |
Radar target discrimination systems using artificial neural network topology |
Aug. 10, 1993 |
| 5220329 |
Monopulse reply extractor for SSR navigation systems |
Jun. 15, 1993 |
| 5212490 |
Echo ranging system for detecting velocity and range of targets using composite doppler invariant-like transmissions with suppression of false targets |
May. 18, 1993 |
| 5179542 |
Signal processor |
Jan. 12, 1993 |
| 5177487 |
Sea velocity evaluator |
Jan. 5, 1993 |
| 5173703 |
All weather strike system (AWTSS) and method of operation |
Dec. 22, 1992 |
| 5162805 |
Frequency diversity sidelobe canceller |
Nov. 10, 1992 |
| 5134410 |
Sensitivity velocity control |
Jul. 28, 1992 |
| 5132691 |
Method and apparatus for recognizing useful signals when superimposed with noise signals |
Jul. 21, 1992 |
| 5101210 |
Signal dynamic range compression apparatus and method including clutter estimation and reduction |
Mar. 31, 1992 |
| 5079556 |
Coherent pulse radar system |
Jan. 7, 1992 |
| 5061934 |
Hybrid clutter cancellation method and system for improved radar performance |
Oct. 29, 1991 |
| 5038145 |
Constant false alarm rate with low probability of false alarms |
Aug. 6, 1991 |
| 5017921 |
Radar system and a method for operating a radar system |
May. 21, 1991 |
| 4977405 |
Programmable if clutter canceller |
Dec. 11, 1990 |
| 4965585 |
Device for moving-clutter elimination in a radar |
Oct. 23, 1990 |
| 4965584 |
Method and devices for translation along the axis of frequencies of the modulus of the transfer function of a filter |
Oct. 23, 1990 |
| 4963888 |
Single-scan editor of bird echoes |
Oct. 16, 1990 |
| 4940988 |
Two parameter clutter map |
Jul. 10, 1990 |
| 4940985 |
Radar stability measurement system |
Jul. 10, 1990 |
| 4928131 |
Sea clutter suppression radar |
May. 22, 1990 |
| 4907001 |
Extraction of radar targets from clutter |
Mar. 6, 1990 |
| 4894660 |
Range sidelobe reduction by aperiodic swept-frequency subpulses |
Jan. 16, 1990 |
| 4887088 |
Signal processing and radio ranging system |
Dec. 12, 1989 |
| 4881077 |
Radar arrangement |
Nov. 14, 1989 |
| 4870424 |
Method and apparatus for reducing unwanted r.f. signal antenna reception/transmission |
Sep. 26, 1989 |
| 4868917 |
Radar arrangements |
Sep. 19, 1989 |
| 4860216 |
Communication adaptive multi-sensor system |
Aug. 22, 1989 |
| 4829306 |
System for detection of objects with given, known characteristics against a background |
May. 9, 1989 |
| 4829307 |
Recursive radar clutter filter |
May. 9, 1989 |
| 4811020 |
Radar protected against rain clutter and method for protecting a radar against rain clutter |
Mar. 7, 1989 |
| 4809001 |
Land mass blanking apparatus (U) |
Feb. 28, 1989 |
| 4804962 |
Clutter elimination radar |
Feb. 14, 1989 |
| 4786909 |
Receiving circuit |
Nov. 22, 1988 |
| 4766435 |
Adaptive radar for reducing background clutter |
Aug. 23, 1988 |
| 4746924 |
Apparatus and methods for locating a target utilizing signals generated from a non-cooperative source |
May. 24, 1988 |
| 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 |
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