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Class Information
Number: 342/156
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Determining direction > Interferometer
Description: Subject matter including a receiving antenna system which determines the angle of arrival of the radar signal by phase comparison in the signals at several points on the antenna system.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7626536 |
Non-scanning radar for detecting and tracking targets |
Dec. 1, 2009 |
| 7599678 |
Processor for a passive ranger |
Oct. 6, 2009 |
| 7436351 |
Multipath resolving correlation interferometer direction finding |
Oct. 14, 2008 |
| 7417586 |
Methods and systems for interferometric cross track phase calibration |
Aug. 26, 2008 |
| 7394422 |
Interferometer-type radar |
Jul. 1, 2008 |
| 7358891 |
Multipath resolving correlation interferometer direction finding |
Apr. 15, 2008 |
| 7295150 |
Methods and systems for identifying high-quality phase angle measurements in an interferometric radar system |
Nov. 13, 2007 |
| 7292179 |
Instantaneous passive range finding |
Nov. 6, 2007 |
| 7026990 |
Interferometer arrangement for unambiguous determination of an angle of incidence of incident electromagnetic radiation |
Apr. 11, 2006 |
| 6982668 |
Tangential velocity measurement using interferometric MTI radar |
Jan. 3, 2006 |
| 6911931 |
Using dynamic interferometric synthetic aperature radar (InSAR) to image fast-moving surface waves |
Jun. 28, 2005 |
| 6911932 |
Two antenna, two pass interferometric synthetic aperture radar |
Jun. 28, 2005 |
| 6867728 |
Methods and systems for identifying signals-of-interest |
Mar. 15, 2005 |
| 6864828 |
Method and apparatus for collection and processing of interferometric synthetic aperture radar data |
Mar. 8, 2005 |
| 6856279 |
Methods and apparatus for determining an interferometric angle to a target in body coordinates |
Feb. 15, 2005 |
| 6844786 |
Millimeter- and submillimeter-wave noise generator |
Jan. 18, 2005 |
| 6839017 |
Method and apparatus for using anti-jam technology to determine the location of an electromagnetic radiation source |
Jan. 4, 2005 |
| 6791493 |
Method for using signal frequency change to differentially resolve long baseline interferometer measurements |
Sep. 14, 2004 |
| 6784826 |
Body motion tracking system |
Aug. 31, 2004 |
| 6744401 |
Methods and apparatus for radar data processing |
Jun. 1, 2004 |
| 6741202 |
Techniques for 3-dimensional synthetic aperture radar |
May. 25, 2004 |
| 6738563 |
Methods and apparatus for weighting radar return data |
May. 18, 2004 |
| 6720911 |
Method and apparatus for reducing the amount of shipboard-collected calibration data |
Apr. 13, 2004 |
| 6697012 |
Altitude estimation system and method |
Feb. 24, 2004 |
| 6680691 |
Methods and apparatus for accurate phase detection |
Jan. 20, 2004 |
| 6677884 |
Satellite configuration for interferometric and/or tomographic remote sensing by means of synthetic aperture radar (SAR) |
Jan. 13, 2004 |
| 6661368 |
Control of reflected electromagnetic fields at an IFSAR antenna |
Dec. 9, 2003 |
| 6639545 |
Methods and apparatus to determine a target location in body coordinates |
Oct. 28, 2003 |
| 6618002 |
HF radar |
Sep. 9, 2003 |
| 6525685 |
Method and apparatus for detecting and eliminating signal angle-of-arrival errors caused by multipath |
Feb. 25, 2003 |
| 6421008 |
Method to resolve interferometric ambiguities |
Jul. 16, 2002 |
| 6411249 |
Apparatus and method for the monopulse linking of frequency agile emitter pulses intercepted in on single interferometer baseline |
Jun. 25, 2002 |
| 6377214 |
Pipelined processing algorithm for interferometer angle of arrival estimation |
Apr. 23, 2002 |
| 6313795 |
Direction-finding method for determining the incident direction of a high-frequency electromagnetic signal |
Nov. 6, 2001 |
| 6266005 |
Method for processing radar signals |
Jul. 24, 2001 |
| 6225949 |
Method and apparatus for a ring interferometer |
May. 1, 2001 |
| 6204809 |
Radio wave receiving apparatus having an improved antenna resolution |
Mar. 20, 2001 |
| 6114984 |
Interferometric doppler guidance system |
Sep. 5, 2000 |
| 6104346 |
Antenna and method for two-dimensional angle-of-arrival determination |
Aug. 15, 2000 |
| 5955990 |
Linear interferometer antenna capable of making error-free azimuth and elevation angle measurements |
Sep. 21, 1999 |
| 5870056 |
Air-to-air passive location system |
Feb. 9, 1999 |
| 5854601 |
Methods for estimating the number of emitters and their parameters |
Dec. 29, 1998 |
| 5812091 |
Radio interferometric antenna for angle coding |
Sep. 22, 1998 |
| 5805200 |
System for determining position from pseudorandomly modulated radio signals |
Sep. 8, 1998 |
| 5781157 |
Multiple beam radar system with enhanced sidelobe supression |
Jul. 14, 1998 |
| 5774089 |
Method to resolve ambiguities in a phase measurement |
Jun. 30, 1998 |
| 5742252 |
Ambiguity resolving algorithm for interferometers of arbitray topologies |
Apr. 21, 1998 |
| 5726656 |
Atmospheric correction method for interferometric synthetic array radar systems operating at long range |
Mar. 10, 1998 |
| 5706012 |
Radar system method using virtual interferometry |
Jan. 6, 1998 |
| 5659318 |
Interferometric SAR processor for elevation |
Aug. 19, 1997 |
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