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In this paper a system for automatic recognition of radar waveform is introduced. This technique is used in many spectrum management, surveillance, and cognitive radio and radar applications. For instance the transmitted radar signal is coded into six codes based on pulse compression waveform such as linear frequency modulation LFM, Frank code, P1, P2, P3 and P4 codes, the latter four are poly phase codes. The classification system is based on drawing Choi Willliams Distribution CWD picture and extracting features from it. In this study, various new types of features are extracted from CWD picture and then a pattern recognition method is used to recognize the spectrum. In fact, signals from CWD picture are defined using biometric techniques. We also employ false reject rate FRR and false accept rate FAR which are two types of fault measurement criteria that are deploy in biometric papers. Fairly good results are obtained for recognition of Signal to Noise Ratio -11 dB.

KEYWORDS

Pulse Compression; Radar; Spectrum Management; Signal Recognition

Cite this paper

E. Tahbaz Tavakoli and A. Falahati -Radar Signal Recognition by CWD Picture Features,- International Journal of Communications, Network and System Sciences, Vol. 5 No. 4, 2012, pp. 238-242. doi: 10.4236-ijcns.2012.54031.





Author: Erfan Tahbaz Tavakoli, Abolfazl Falahati

Source: http://www.scirp.org/



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