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Class Information
Number: 342/148
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Determining direction > Low angle processing
Description: Subject matter including direction determination of an object at a low angle elevation with respect to the radar signal source.

Patents under this class:

Patent Number Title Of Patent Date Issued
8659473 Amplifier circuit for a ranging transceiver Feb. 25, 2014
8325081 Identification friend or foe (IFF) system Dec. 4, 2012
8130136 System and method for target signature calculation and recognition Mar. 6, 2012
7994964 Method for determining the position, notably in terms of elevation, of a target flying at very low altitude Aug. 9, 2011
7889117 Less than full aperture high resolution phase process for terrain elevation estimation Feb. 15, 2011
7791527 Method and device for object detection in the case of a vehicle Sep. 7, 2010
7436351 Multipath resolving correlation interferometer direction finding Oct. 14, 2008
7417584 Monopulse radar estimation of target altitude at low angles of elevation Aug. 26, 2008
7358891 Multipath resolving correlation interferometer direction finding Apr. 15, 2008
7205933 Hostile platform position location utilizing networked communications Apr. 17, 2007
7161529 Dual forward scattering method for modeling multipath propagation Jan. 9, 2007
7148839 Operational bistatic radar system synchronization Dec. 12, 2006
7095984 Base station apparatus and direction-of-arrival estimating method Aug. 22, 2006
7026981 Surface interaction region methodology for delimiting multipath propagation inquiry Apr. 11, 2006
6999025 Clutter rejection in a passive radar receiver of OFDM signals with antenna array Feb. 14, 2006
6907269 Mobile communication base station equipment Jun. 14, 2005
6853847 Method and apparatus for positioning a mobile station Feb. 8, 2005
6833805 Method of compensating for atmospheric effects while using near horizon radar Dec. 21, 2004
6772100 Multipath mitigation filter Aug. 3, 2004
6525685 Method and apparatus for detecting and eliminating signal angle-of-arrival errors caused by multipath Feb. 25, 2003
6404379 Matrix monopulse ratio radar processor for two target azimuth and elevation angle determination Jun. 11, 2002
6400312 Method and device for object detection Jun. 4, 2002
6396434 Radar transponder May. 28, 2002
6243037 Tracking method for a radar system Jun. 5, 2001
6005510 Method for the processing of multiple paths Dec. 21, 1999
5694131 Method and apparatus for detecting multipath interference in a radar receiver Dec. 2, 1997
5610617 Directive beam selectivity for high speed wireless communication networks Mar. 11, 1997
5583508 Methods and systems of attitude determination Dec. 10, 1996
5506586 Multiple-hypothesis, multiple-matched filter system Apr. 9, 1996
5371503 Radar system and method of operating same Dec. 6, 1994
5341145 Method for tracking a radar target Aug. 23, 1994
5334984 Method and system for locating direction of transmission source based on wave therefrom Aug. 2, 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
5270718 Method and apparatus for tracking targets from direct and multipath reflected radar signals Dec. 14, 1993
4961075 Two and one-half dimensional radar system Oct. 2, 1990
4796031 Radar system Jan. 3, 1989
4472718 Tracking radar system Sep. 18, 1984
4449127 System and method for tracking targets in a multipath environment May. 15, 1984
4316191 Low angle radar processing means Feb. 16, 1982
4163975 Method of measuring the altitude of a target maneuvering at a very low elevation, and a tracking radar using same Aug. 7, 1979
4110752 Systems for reducing the elevation error for tracking radars of low height targets Aug. 29, 1978
4090197 Monopulse, fan-beam, search-radar system with improved height and azimuth determination May. 16, 1978
4084160 Arrangement for correcting deviations from the true bearing caused by reflecting surfaces in target tracking radar installations Apr. 11, 1978
4060807 Low angle radar Nov. 29, 1977
4041487 Low elevation angle radar tracking system Aug. 9, 1977
4017859 Multi-path signal enhancing apparatus Apr. 12, 1977
4012740 Radio-frequency direction-finding arrangement Mar. 15, 1977
4005421 Monopulse radar system and method for improved low elevation tracking Jan. 25, 1977

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