INFRARED/RADIO FREQUENCY SENSOR DATA FUNSION

SINGLE SENSOR MISSILE TRACKERS ARE SUBJECT TO THE LIMITATIONS OF THEIR SOLITARY SENSOR. IT'S BEEN CONJECTURED THAT THE COMBINATION OF COMPLEMENTARY MISSILE SEEKERS WILL HELP COMBAT SEEKER PROBLEMS LIKE GLINT, MULTI-PATH, JAMMING, FLARE DEPLOYMENT, IR CLUTTER, BODY/PLUME SEPARATION, ETC. INTEGRATED SENSORS, INC., PROPOSES A COMBINED RF DOPPLER AND DUAL-BAND IR SEEKER SYSTEM TO REALIZE SOME OF THE EXPECTED GOALS. THE INTEGRATED SEEKER DESIGN USES INDEPENDENT SENSOR SIGNAL PROCESSING CHAINS AND A COMBINED FUSION TRACT PROCESSOR. USE OF THE EXISTING RECEIVER DESIGN MAKES THE SYSTEM NEAR-TERM REALIZABLE AND RELATIVELY LOW COST/LOW RISK. THE FUSION TRACKER IS A COMBINATION OF A MULTIPLE INPUT KALMAN FILTER AND A BAYESIAN CLASSIFIER. THE FILTER GENERATES A SINGLE TRACK ON EACH TARGET ANDCLUTTER POINT, WHILE THE CLASSIFIER ACCEPTS INPUTS FROM ALL SYSTEM COMPONENTS AND MAKES THE FINAL TARGET DECISION. THE RESULT IS BETTER ACQUISITION RANGE, INSENSITIVITY TO TRACK FRACTURE, AND MORE ACCURATE STABLE TRACK.