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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 |
| 6198427 |
Doppler complex FFT police radar with direction sensing capability |
Mar. 6, 2001 |
| 6195035 |
Cylindrical monopulse |
Feb. 27, 2001 |
| 6166678 |
Fourier-transform-based adaptive radio interference mitigation |
Dec. 26, 2000 |
| 6157891 |
Positioning and ground proximity warning method and system thereof for vehicle |
Dec. 5, 2000 |
| 6150976 |
Synthesis of overlapping chirp waveforms |
Nov. 21, 2000 |
| 6147560 |
Method and device relating to supervision and control of an oscillator signal |
Nov. 14, 2000 |
| 6137433 |
Scatterometer with adaptable spatial resolution |
Oct. 24, 2000 |
| 6130638 |
Method and device for determining an azimuth angle and/or an elevation angle in a multibeam radar system |
Oct. 10, 2000 |
| 6121917 |
FM-CW radar |
Sep. 19, 2000 |
| 6118402 |
Process for side lobe suppression and amplitude or phase monopulse radar device |
Sep. 12, 2000 |
| 6111536 |
System and method for distance measurement by inphase and quadrature signals in a radio system |
Aug. 29, 2000 |
| 6107962 |
Method for measuring the ellipse axes, wave direction, and wave propagation mode of an elliptically, circularly, or linearly polarized wave |
Aug. 22, 2000 |
| 6087972 |
Microwave sensor for object motion detection |
Jul. 11, 2000 |
| 6075480 |
Down range returns simulator |
Jun. 13, 2000 |
| 6072419 |
Method for the processing of the reception signal of a deramp type synthetic aperture radar |
Jun. 6, 2000 |
| 6049302 |
Pulsed doppler radar system with small intermediate frequency filters |
Apr. 11, 2000 |
| 6037892 |
Method for automatic focusing of radar or sonar imaging systems using high-order measurements |
Mar. 14, 2000 |
| 6020843 |
Technique for implementing very large pulse compression biphase codes |
Feb. 1, 2000 |
| 5982319 |
UHF synthetic aperture radar |
Nov. 9, 1999 |
| 5969667 |
Radar system |
Oct. 19, 1999 |
| 5952955 |
Compensation for radar path length variation and phase error |
Sep. 14, 1999 |
| 5923280 |
Vehicle collision radar with randomized FSK wave form |
Jul. 13, 1999 |
| 5923279 |
Method of correcting an object-dependent spectral shift in radar interferograms |
Jul. 13, 1999 |
| 5910785 |
Method for the processing of the reception signal of a synthetic aperture radar with frequency ramps |
Jun. 8, 1999 |
| 5872538 |
Frequency domain correction of I/Q imbalance |
Feb. 16, 1999 |
| 5867119 |
Precision height measuring device |
Feb. 2, 1999 |
| 5861834 |
Virtual noise radar waveform for reduced radar detectability |
Jan. 19, 1999 |
| 5841522 |
Phase detector |
Nov. 24, 1998 |
| 5831570 |
Radar resolution using monopulse beam sharpening |
Nov. 3, 1998 |
| 5825323 |
Radar sensor |
Oct. 20, 1998 |
| 5805099 |
Synthetic aperture radar and target image production method |
Sep. 8, 1998 |
| 5805107 |
Cost-effective method for determining a pulse response of a high-resolution, band-limited radar channel |
Sep. 8, 1998 |
| 5784022 |
Process and amplitude or phase monopulse radar device for locating flying objects |
Jul. 21, 1998 |
| 5760734 |
Radar clutter removal by matrix processing |
Jun. 2, 1998 |
| 5757312 |
Method and apparatus for hard-wired adaptive cancellation |
May. 26, 1998 |
| 5731783 |
Method and apparatus for estimating radar signal polarisation |
Mar. 24, 1998 |
| 5726657 |
Phase coherent radar system using fast frequency agile waveform synthesis |
Mar. 10, 1998 |
| 5726656 |
Atmospheric correction method for interferometric synthetic array radar systems operating at long range |
Mar. 10, 1998 |
| 5719579 |
Virtual noise radar waveform for reduced radar detectability |
Feb. 17, 1998 |
| 5708442 |
Correlation radiometer imaging system |
Jan. 13, 1998 |
| 5703593 |
Adaptive DPCA subsystem |
Dec. 30, 1997 |
| 5703596 |
Demodulating integrator/demultiplexer |
Dec. 30, 1997 |
| 5694131 |
Method and apparatus for detecting multipath interference in a radar receiver |
Dec. 2, 1997 |
| 5661485 |
Homodyne receiver apparatus and method |
Aug. 26, 1997 |
| 5646627 |
Method and apparatus for controlling a biphase modulation to improve autocorrelation in pseudorandom noise coded systems |
Jul. 8, 1997 |
| 5646626 |
Method and apparatus for digital correlation in pseudorandom noise coded systems |
Jul. 8, 1997 |
| 5625364 |
Apparatus and method for finding a signal emission source |
Apr. 29, 1997 |
| 5619206 |
Secondary radar digital monopulse receiving apparatus and method |
Apr. 8, 1997 |
| 5604503 |
Multipath and co-channel signal preprocessor |
Feb. 18, 1997 |
| 5517197 |
Modular radar architecture film (FM/CW or pulse) for automobile collision avoidance applications |
May. 14, 1996 |
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