Thomas J Nichols

US Patent:

20100214163, Aug 26, 2010

Filed:

Feb 26, 2010

Appl. No.:

12/713785

Inventors:

Thomas S. Nichols - La Habra CA, US

Assignee:

Thales-Raytheon Systems Company LLC - Fullerton CA

International Classification:

G01S 19/14
G01S 1/08

US Classification:

34235706, 342386

Abstract:

According to one embodiment of the present invention, determining the location of a target of interest includes determining a beacon location of the beacon. The beacon location is transmitted to a sensor. The sensor is operable to determine a sensor location of the sensor. The sensor is further operable to determine a target location of the target according to the beacon location and the sensor location. The target location is distinct from the beacon location.

US Patent:

59091894, Jun 1, 1999

Filed:

Nov 14, 1996

Appl. No.:

8/748647

Inventors:

Samuel S. Blackman - Los Angeles CA
Robert J. Dempster - Los Angeles CA
Thomas S. Nichols - La Habra CA

Assignee:

Raytheon Company - Lexington MA

International Classification:

G01S 1366

US Classification:

342 90

Abstract:

A method for automatic group tracking detects target formations and group tracks corresponding to each formation. Pseudo-observations are formed to represent missing observations in each track group. The pseudo-observations update the track states of undetected targets. Track validity estimates eliminate false tracks resulting from series of pseudo-observations. A group average velocity applied to each track in the group helps to maintain velocity stability. The operator has the option of suppressing the display of all tracks except for the leader of each group to eliminate the distraction of intra-group switching. This method can be applied to trackers that maintain a single track for each target or to trackers that maintain multiple track branches on each target, such as MHT.