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Infrared search and track (IRST) modeling and validation

An IR search and track (IRST) system is a system comprising a scanning IR sensor, a signal processor, and a track-while-scan track discrimination filter. The AN/SAR-8 IRST (a joint development of the U.S. and Canada) has undergone extensive test and evaluation in a naval environment. Trial data have been used to develop performance models for IRSTs. These models are described. The models ultimately assist in the synthesis of new IRST system designs.