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Class Information
Number: 342/449
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Beacon or receiver > Direction-finding receiver only > Having a moving antenna
Description: Subject matter wherein the direction finding receiver is coupled to an antenna which changes position, usually around an axis and is not classified elsewhere.










Patents under this class:

Patent Number Title Of Patent Date Issued
8581783 Metamaterial-based direction-finding antenna systems Nov. 12, 2013
8565687 Signal detection assisted by use of moving antennae Oct. 22, 2013
8294616 Using antennas separated in flight direction to avoid effect of emitter clock drift in geolocation Oct. 23, 2012
7907089 Method for tracking a transmitter by means of a synthetic sparse antenna network Mar. 15, 2011
7848748 Method for characterising emitters by the association of parameters related to the same radio emitter Dec. 7, 2010
7724680 Method and technique for the processing and intelligent display of wideband direction-finding data May. 25, 2010
7652621 Method for automatically selecting radionavigation beacons Jan. 26, 2010
7642960 Command, control and communications with intelligent antennas Jan. 5, 2010
7423589 Method for localising at least one emitter Sep. 9, 2008
7408509 Direction finding method and system using probabilistic mapping Aug. 5, 2008
7395031 Mobile device and method for receiving and processing program-accompanying data Jul. 1, 2008
7242351 Real-time emitter locating system and method Jul. 10, 2007
6822608 Method for passive localization of a target and air-air localization in particular Nov. 23, 2004
6784840 Method for determining azimuth and elevation angles using a single axis direction finding system Aug. 31, 2004
6285319 Method for reducing geometrical dilution of precision in geolocation of emitters using phase circles Sep. 4, 2001
6268829 Doppler direction finder and method of location using doppler direction finder Jul. 31, 2001
5859612 Method for using an antenna with a rotating beam for determining the position of a mobile subscriber in a CDMA cellular telephone system Jan. 12, 1999
5739789 Method for position determination Apr. 14, 1998
5625364 Apparatus and method for finding a signal emission source Apr. 29, 1997
5570099 TDOA/FDOA technique for locating a transmitter Oct. 29, 1996
5448248 Adaptive radio direction finding system Sep. 5, 1995
5245348 Tracking antenna system Sep. 14, 1993
5218361 Interferometer ambiguity resolution using missile roll Jun. 8, 1993
5134409 Surveillance sensor which is provided with at least one surveillance radar antenna rotatable about at least one first axis of rotation Jul. 28, 1992
5053784 Apparatus and method for measuring the azimuth and elevation of an object Oct. 1, 1991
4688037 Electromagnetic communications and switching system Aug. 18, 1987
4438439 Self-survey means Mar. 20, 1984
4303922 Method for reducing errors due to source amplitude modulation in a sequential amplitude comparison direction finding system Dec. 1, 1981











 
 
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