Spectral Correlation of Wideband Target Resonances
Recognition of target resonances in ultra-wideband (UWB) radar imagery has been a topic of investigation for several years, with a common method of resonance extraction being the singularity expansion method (SEM)—a contemporary adaptation of Prony’s method. SEM requires high signal-to-noise (SIN) ratios—about 15 to 20 dB1—and performs poorly in the presence of noise and multipath effects. In this paper, I demonstrate the application of spectrally matched filters, employing the discrete cosine transform (DCT), to achieve an efficient means of target resonance recognition.
KeywordsFalse Alarm Discrete Cosine Transform Recognition Rate Recognition Performance Aspect Angle
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