Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Aircraft guidance
Patent
1990-08-28
1994-08-23
Gregory, Bernarr E.
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
Aircraft guidance
342 52, 342 53, 342 62, 342 63, 342 67, 244 315, 244 316, 244 317, 244 319, G01S 1386, G01S 1388, G01S 1389
Patent
active
053411420
ABSTRACT:
An automatic target acquisition and tracking system has been developed for a focal plane array seeker. The automatic target acquisition is achieved by three independent target acquisition algorithms, viz., the maximum likelihood classification, the video spatial clustering, and the target-to-interference ratio. Each algorithm operates asynchronously and provides independent target detection results. Target information is then combined hierarchically in a probabilistic fashion and prioritized. The highest priority target is handed off to a dual mode tracker consisting of a minimum absolute difference correlation tracker and a centroid tracker. The dual mode tracker subsequently provides a feedback signal to a proportional navigation system or other guidance/control system for directing the flight path of a munition.
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Garber David D.
Lucero Antonio B.
Luk Anthony L.
Reis James J.
Anderson Terry J.
Block Robert B.
Gregory Bernarr E.
Hoch Jr. Karl J.
Northrop Grumman Corporation
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