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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 |
| 5506583 |
Frequency range gate closure |
Apr. 9, 1996 |
| 5499029 |
Wide band stepped frequency ground penetrating radar |
Mar. 12, 1996 |
| 5488374 |
Multi-scale adaptive filter for interferometric SAR data |
Jan. 30, 1996 |
| 5485160 |
Radar-type object shape detector |
Jan. 16, 1996 |
| 5469167 |
Synthetic aperture radar for nonlinear trajectories using range relative doppler processing and invariant mapping |
Nov. 21, 1995 |
| 5463397 |
Hyper-precision SAR interferometry using a dual-antenna multi-pass SAR system |
Oct. 31, 1995 |
| 5457462 |
Radar signal processor and pulse doppler radar system therewith |
Oct. 10, 1995 |
| 5450089 |
Monopulse thresholding |
Sep. 12, 1995 |
| 5448241 |
Terrain height radar |
Sep. 5, 1995 |
| 5424749 |
Vibrating object assessment from a pulse operated vibrating sensor |
Jun. 13, 1995 |
| 5422646 |
High frequency MTI radar |
Jun. 6, 1995 |
| 5418536 |
Bandwidth and amplitude insensitive frequency discriminator |
May. 23, 1995 |
| 5418534 |
Method of compensating for a signal component generated by a moving radar antenna |
May. 23, 1995 |
| 5402131 |
Detection of radar targets using higher-order statistics |
Mar. 28, 1995 |
| 5402130 |
Monopulse processor |
Mar. 28, 1995 |
| 5389931 |
Radar signal processing system |
Feb. 14, 1995 |
| 5374931 |
Radar target velocity estimator |
Dec. 20, 1994 |
| 5369411 |
Imbalance correction of in-phase and quadrature phase return signals |
Nov. 29, 1994 |
| 5341145 |
Method for tracking a radar target |
Aug. 23, 1994 |
| 5337053 |
Method and apparatus for classifying targets |
Aug. 9, 1994 |
| 5329283 |
Synthetic aperture radar digital signal processor |
Jul. 12, 1994 |
| 5325095 |
Stepped frequency ground penetrating radar |
Jun. 28, 1994 |
| 5247308 |
Detection and characterization of LPI signals |
Sep. 21, 1993 |
| 5245347 |
All weather tactical strike system (AWTSS) and method of operation |
Sep. 14, 1993 |
| 5241316 |
Use of iteration to improve the correction of AGC dependent channel-to-channel gain imbalance |
Aug. 31, 1993 |
| 5235339 |
Radar target discrimination systems using artificial neural network topology |
Aug. 10, 1993 |
| 5150126 |
Transmitting and receiving part of a pulse doppler radar |
Sep. 22, 1992 |
| 5150128 |
In-phase and quadrature conversion error compensator |
Sep. 22, 1992 |
| 5142287 |
Technique for demodulating and decoding MLS DPSK transmissions using a digital signal processor |
Aug. 25, 1992 |
| 5124708 |
RF stability measuring system for MTI radars |
Jun. 23, 1992 |
| 5117230 |
Electronic target radar simulator |
May. 26, 1992 |
| 5113191 |
Radar signal progessing |
May. 12, 1992 |
| 5113194 |
Acceleration compensation by matched filtering |
May. 12, 1992 |
| 5105195 |
System and method for compensation of in-phase and quadrature phase and gain imbalance |
Apr. 14, 1992 |
| 5095313 |
Transient glitch cancellation network |
Mar. 10, 1992 |
| 5036333 |
Antenna-rotation compensation apparatus and method for phased array antennas |
Jul. 30, 1991 |
| 5019824 |
Multistage estimation of received carrier signal parameters under very high dynamic conditions of the receiver |
May. 28, 1991 |
| 5001489 |
Digital phase detector |
Mar. 19, 1991 |
| 4994810 |
Monopulse processor digital correction circuit |
Feb. 19, 1991 |
| 4970519 |
Continuously transmitting and receiving radar |
Nov. 13, 1990 |
| 4931800 |
Stagger compensated moving target detector |
Jun. 5, 1990 |
| 4929954 |
Device for computing a sliding and nonrecursive discrete Fourier transform and its application to a radar system |
May. 29, 1990 |
| 4916452 |
Process for range measurement with a pulse radar of high pulse repetition frequency |
Apr. 10, 1990 |
| 4908625 |
Device for processing signals from a side-looking radar |
Mar. 13, 1990 |
| 4881079 |
Aperture radar |
Nov. 14, 1989 |
| 4876489 |
Signal processing |
Oct. 24, 1989 |
| 4876549 |
Discrete fourier transform direction finding apparatus |
Oct. 24, 1989 |
| 4866449 |
Multichannel alignment system |
Sep. 12, 1989 |
| 4855747 |
Method of target imaging and identification |
Aug. 8, 1989 |
| 4851853 |
Signal source distortion compensator |
Jul. 25, 1989 |
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