Maryland's Defense Patent Database

The defense community in Maryland is an R&D powerhouse.

Use this database to see the innovative patents that are poised for commercialization.

Method and apparatus for passively locating radar emissions from rotating transmitters

Patent image
NRL

Systems and methods are presented for passive location of transmitters in which two or more receivers time stamp received signals from target transmitters and the time stamped data for each target signal of interest is isolated to identify a peak power time of arrival for the signal at each transmitter from which differential scan observation values are derived, and for each signal of interest a line of position curve is computed based on the differential scan observation value and corresponding receiver locations, and for each signal of interest an estimated target transmitter location is determined based on an intersection of two corresponding line of position curves.

Inventors: 
Middour, Jay W.; Bynum, Kelia; Huffine, Christopher; D'agostino, Anthony; Chrisman, Charles; Ellis, Lane C.; Nichols, Randolph L.
Patent Number: 
Technical domain: 
Sensors and Measurement
FIle Date: 
2009-06-09
Grant Date: 
2011-05-31
Grant time: 
721 days
Grant time percentile rank: 
13
Claim count percentile rank: 
6
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY