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Class Information
Number: 342/194
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > With particular circuit > Complex signal (in phase and quadrature)
Description: Subject matter including receiver circuit means to separate returned radar signals into "in phase" and quadrature" components.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4481519 |
Radio frequency signal direction finding apparatus |
Nov. 6, 1984 |
| 4475088 |
Gain imbalance corrected quadrature phase detector |
Oct. 2, 1984 |
| 4472718 |
Tracking radar system |
Sep. 18, 1984 |
| 4463356 |
Apparatus for control of clutter breakthrough in MTI radar |
Jul. 31, 1984 |
| 4450444 |
Stepped frequency radar target imaging |
May. 22, 1984 |
| 4449127 |
System and method for tracking targets in a multipath environment |
May. 15, 1984 |
| 4430654 |
Method and apparatus for suppressing clutter |
Feb. 7, 1984 |
| 4430655 |
Radar target angle measuring system |
Feb. 7, 1984 |
| 4419659 |
Intrusion detection system using leaky transmission lines |
Dec. 6, 1983 |
| 4404562 |
Low sidelobe linear FM chirp system |
Sep. 13, 1983 |
| 4404561 |
Radar system |
Sep. 13, 1983 |
| 4403314 |
Active detection system using simultaneous multiple transmissions |
Sep. 6, 1983 |
| 4394658 |
Adaptive MTI clutter tracker-canceller method and apparatus |
Jul. 19, 1983 |
| 4389648 |
Doppler radar system |
Jun. 21, 1983 |
| 4389647 |
Doppler discrimination of aircraft targets |
Jun. 21, 1983 |
| 4384291 |
Efficient low-sidelobe pulse compression |
May. 17, 1983 |
| 4381508 |
Clutter compensated sidelobe cancelling communications system |
Apr. 26, 1983 |
| 4379295 |
Low sidelobe pulse compressor |
Apr. 5, 1983 |
| 4375640 |
Radar systems |
Mar. 1, 1983 |
| 4359735 |
Multi-sampling-channel pulse compressor |
Nov. 16, 1982 |
| 4357610 |
Waveform encoded altitude sensor |
Nov. 2, 1982 |
| 4345252 |
Non-linear dynamic filtering device for the angular measuring of noise in a radar |
Aug. 17, 1982 |
| 4339754 |
Spatially adaptive moving target indicator system for radar equipment |
Jul. 13, 1982 |
| 4339752 |
Synthetic array processor |
Jul. 13, 1982 |
| 4333080 |
Signal processor |
Jun. 1, 1982 |
| 4331958 |
Processing device for angular deviation measurement signals of a monopulse radar |
May. 25, 1982 |
| 4318099 |
Clutter filter using a minimum number of radar pulses |
Mar. 2, 1982 |
| 4308535 |
Process and system for the visual display of moving targets |
Dec. 29, 1981 |
| 4305076 |
Device for the automatic testing of digital filters in moving-target indicators |
Dec. 8, 1981 |
| 4298942 |
Nonlinear amplitude detector |
Nov. 3, 1981 |
| 4296415 |
Method and apparatus for reducing the effects of scintillation and rejection of clutter in monopulse radars |
Oct. 20, 1981 |
| 4293856 |
Digital CFAR signal processor for phase coded radars |
Oct. 6, 1981 |
| 4292635 |
Signal processing system |
Sep. 29, 1981 |
| 4287579 |
Moving object detecting device |
Sep. 1, 1981 |
| 4249179 |
Circuit arrangement for displacing the clutter spectrum in a radar receiver |
Feb. 3, 1981 |
| 4237461 |
High-speed digital pulse compressor |
Dec. 2, 1980 |
| 4231005 |
Constant false alarm rate radar system and method of operating the same |
Oct. 28, 1980 |
| 4225864 |
Radar signal processors |
Sep. 30, 1980 |
| 4223233 |
Charge transfer device input circuitry |
Sep. 16, 1980 |
| 4222049 |
Circuit arrangement for eliminating fixed echoes in a pulse |
Sep. 9, 1980 |
| 4222050 |
Moving target indication radar |
Sep. 9, 1980 |
| 4220953 |
Circuit arrangement for improving accuracy of angular measurements in radar systems |
Sep. 2, 1980 |
| 4219816 |
Method of and apparatus for angular measurement in target tracking radar systems |
Aug. 26, 1980 |
| 4219813 |
Signal processor |
Aug. 26, 1980 |
| 4219811 |
Synthetic array autofocus system |
Aug. 26, 1980 |
| 4219812 |
Range-gated pulse doppler radar system |
Aug. 26, 1980 |
| 4218678 |
Synthetic pulse radar including a microprocessor based controller |
Aug. 19, 1980 |
| 4217584 |
System for the suppression by matching techniques of unwanted echoes in impulse coherent radars |
Aug. 12, 1980 |
| 4217582 |
Radar system for detecting approaching vehicles from behind |
Aug. 12, 1980 |
| 4216473 |
MIPS Hover attachment |
Aug. 5, 1980 |
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