A HYBRID TARGET MOTION ANALYSIS MATCHED-FIELD PROCESSING LOCALIZATIONMETHOD

A passive localization method is described that combines the localizat ion features of target motion analysis and matched-field processing. T his method works directly with complex-valued beam spectra as its inpu t. The algorithm can handle weak or fading signals and, because of its long-term integration of power from the matched-field processor, has enhanced detection characteristics. In towed array applications, this hybrid algorithm combines the broadside localization performance of ta rget motion analysis with the good end-fire performance of matched-fie ld processing to give good all-around performance.