S. B. S. Hanbali, R. Kastantin

Automatic Modulation Classification of LFM and Polyphase-coded Radar Signals

Číslo: 4/2017
Periodikum: Radioengineering Journal
DOI: 10.13164/re.2017.1118

Klíčová slova: LFM, polyphase coded signals, detection, automatic classification, LFM, polyfázové kódované signály, detekce, automatické zařazení

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Anotace: There are several techniques for detecting and classifying low probability of intercept radar signals such as Wigner distribution, Choi-Williams distribution and time-frequency rate distribution, but these distributions require high SNR. To overcome this problem, we propose a new technique for detecting and classifying linear frequency modulation signal and polyphase coded signals using optimum fractional Fourier transform at low SNR. The theoretical analysis and simulation experiments demonstrate the validity and efficiency of the proposed method.