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Doppler processing of a coherent periodic waveform usually employs an n-pulse (or n-period) canceller followed by a weighted FFT. Early moving target detection (MTD) used a simple 3-pulse canceller as the MTI filter. MTD in ground-based radar faces a conflict between clutter attenuation and slow targets' visibility. The paper suggests two simple modifications to a 3-pulse canceller that will ease...
The periodic ambiguity function (PAF) relates to Woodward's ambiguity function (AF) like periodic autocorrelation relates to autocorrelation. AF is defined for a finite signal, processed by its matched filter. PAF can handle periodic signals with infinite (or large) number of periods, and a processor that is matched to fewer periods. PAF suits practical scenarios found in radar employing coherent...
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