DEVELOPING CONCEPTS FOR CUT-TO-CUT CORRELATION

SIGNAL PROCESSING CONCEPTS ARE PROPOSED TO BE DEVELOPED HERE TO IMPROVE PASSIVE IDENTIFICATION AND LOCALIZATION TO MULTIPLE SIMILAR EMITTERS. THESE CONCEPTS WILL BE DEVISED TO EXPLOIT AVAILABLE IDENTIFYING INTRINSIC AND EXTRINSIC EMITTER SIGNAL CHARACTERISTICS TO ENABLE ASSOCIATION OR CORRELATION OF COMMON SOURCE MEASUREMENTS FOR LOCALIZATION. INTRINSIC SIGNAL DISCRIMINATORS OF POTENTIAL INTEREST INCLUDE PHASE, INTERMODULATION ARTIFACTS, AND OTHER MODULATION NONLINEARITIES, AS WELL AS THE MORE COMMONLY ENCOUNTERED EMITTER PARAMETERS. THIS INVESTIGATION WILL EXAMINE THE POTENTIAL VALUE OF EXTRINSIC SIGNAL CHARACTERISTICS, SUCH AS PARASITIC MULTIPATHS, TO EFFECT EMITTER IDENTIFICATION IN THE PRESENT APPLICATION. QUALITATIVE AND QUANTITATIVE IDENTIFICATION PERFORMANCE ESTIMATES, IN THE CASE OF SELECTED EMITTERS, WILL BE GENERATED AS FAR AS POSSIBLE, FOR THE MORE PROMISING CONCEPTS. CRITICAL TECHNOLOGY AND INFORMATION FACTORS WILL BE SPECIFIED FOR THESE LATTER CONCEPTS.