SPACE-TIME ADAPTIVE PROCESSING IN BISTATIC AIRBORNE RADARS

MONOSTATIC RADAR SYSTEMS USING SPACE-TIME ADAPTIVE PROCESING (STAP) HAVE BEEN SIMULATED IN DETAIL AND SHOWN TO PROVIDE LARGE IMPROVEMENTS IN MOVING TARGET DETECTION. AND TRACKING CAPABILITY. THE PROPOSED STUDY WILL APPLY STAP TECHNOLOGY TO BISTATIC RADARS WITH AIRBORNE RECEIVERS AND AIRBORNE OR STATIONARY TRANSMITTERS. CANCELLATION OF CLUTTER IN A BISTATIC RADAR IS COMPLICATED BY THE RAPIDLY VARYING SPATIAL DESTRIBUTION OF CLUTTER DOPPLER FREQUENCY. BISTATIC STAP RADAR WILL BE SIMULATED IN DETAIL HAS IMPORTANT ADVANTAGES - THE RADIATION FROM EITHER FRIENDLY OR ENEMY RADARS CAN BE USED AS TARGET ILLUMINATION, THE RECEIVING SYSTEM CAN BE CARRIED ON A DRONE OR LOW PERFORMANCE AIRCRAFT, AND THE BISTATIC RECEIVER IS SILENT AVOIDING WARNING AND ARM ATTACK. WHILE STAP REQUIRES CONSIDERABLY MORE DIGITAL SIGNAL PROCESSING THAN CONVENTIONAL RADAR, DIGITAL PROCESSOR TECHNOLOGY IS IMPROVING RAPIDLY.