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Class Information
Number: 342/152
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Determining direction > Monopulse > With quadrature difference processing
Description: Subject matter wherein the "in phase" sum signal is combined with the "quadrature" phase difference signals.


Patents under this class:
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Patent Number Title Of Patent Date Issued
7372897 Portable information communication terminal, program, and recording medium May. 13, 2008
7358848 Wireless remote sensor Apr. 15, 2008
7352800 Method of partial parallel interference cancellation Apr. 1, 2008
7268724 Reduced-error monopulse processor Sep. 11, 2007
7161530 System and method for radar calibration using antenna leakage Jan. 9, 2007
7136014 System and method for estimating the azimuth pointing angle of a moving monopulse antenna Nov. 14, 2006
6801156 Frequency-agile monopulse technique for resolving closely spaced targets Oct. 5, 2004
6734820 Methods and apparatus for conversion of radar return data May. 11, 2004
6720910 Pri-staggered post-doppler adaptive monopulse processing for detection and location of a moving target in ground clutter Apr. 13, 2004
6674390 Shipboard point defense system and elements therefor Jan. 6, 2004
6630902 Shipboard point defense system and elements therefor Oct. 7, 2003
6404379 Matrix monopulse ratio radar processor for two target azimuth and elevation angle determination Jun. 11, 2002
6369746 Simultaneous nulling in low sidelobe sum and difference antenna beam patterns Apr. 9, 2002
6316934 System for three dimensional positioning and tracking Nov. 13, 2001
6195035 Cylindrical monopulse Feb. 27, 2001
6166678 Fourier-transform-based adaptive radio interference mitigation Dec. 26, 2000
6118402 Process for side lobe suppression and amplitude or phase monopulse radar device Sep. 12, 2000
6078824 Wireless base station equipment Jun. 20, 2000
6018315 Method and system for attitude sensing using monopulse GPS processing Jan. 25, 2000
5847673 System and method for determining a position of an object using output from a radar system Dec. 8, 1998
5841400 Estimator of direction of desired signal Nov. 24, 1998
5831570 Radar resolution using monopulse beam sharpening Nov. 3, 1998
5751249 Radio transmission system and a radio apparatus for use in such a system May. 12, 1998
5694131 Method and apparatus for detecting multipath interference in a radar receiver Dec. 2, 1997
5619206 Secondary radar digital monopulse receiving apparatus and method Apr. 8, 1997
5576711 Monopulse signal processor and method using same Nov. 19, 1996
5493303 Monopulse transceiver Feb. 20, 1996
5473331 Combined SAR monopulse and inverse monopulse weapon guidance Dec. 5, 1995
5450089 Monopulse thresholding Sep. 12, 1995
5402130 Monopulse processor Mar. 28, 1995
5341145 Method for tracking a radar target Aug. 23, 1994
5331326 Correcting errors in crossfeed radar systems Jul. 19, 1994
5278564 Method and apparatus for the determination of the height of a target Jan. 11, 1994
5181040 Method of measuring the null angle of a monopulse antenna and apparatus therefor Jan. 19, 1993
5101209 Jam strobe resolution using a monopulse antenna Mar. 31, 1992
5072224 Monopulse processing systems Dec. 10, 1991
5070336 Radar guidance system correcting hardware induced channel-to-channel phase errors Dec. 3, 1991
5059968 Radar system and method of operating such system Oct. 22, 1991
5014064 Monopulse tracking apparatus and method of operating same May. 7, 1991
5003313 Method and arrangement for improving the angular resolution of a monopulse radar Mar. 26, 1991
5001489 Digital phase detector Mar. 19, 1991
4926184 Angle measurement device for amplitude monopulse receivers May. 15, 1990
4905010 Method for balancing channels in a multichannel pulse radar system and a radar system using this method Feb. 27, 1990
4882587 Electronically roll stabilized and reconfigurable active array system Nov. 21, 1989
4866449 Multichannel alignment system Sep. 12, 1989
4789861 Method and apparatus for detecting an out of beam condition in a monopulse radar receiver Dec. 6, 1988
4719463 Microwave receiver making deviation measurements more especially in combination with a secondary airborne radar and a secondary radar containing it Jan. 12, 1988
4713666 Method of processing the sum and difference signals of a radar of the monopulse type for estimating the parasite phase introduced between these signals by the ultrahigh frequency formation cir Dec. 15, 1987
4689623 Monopulse processing systems Aug. 25, 1987
4616230 Conformal phased array antenna pattern corrector Oct. 7, 1986

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