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Recognition Method Based on Wigner-Hough Transform for Poly-Phase Code Radar Signal
College of Information and Communication Engineering, Harbin Engineering University, Harbin, China
College of Information and Communication Engineering, Harbin Engineering University, Harbin, China
College of Information and Communication Engineering, Harbin Engineering University, Harbin, China
- 1 College of Information and Communication Engineering, Harbin Engineering University, Harbin, China
- 2 College of Information and Communication Engineering, Harbin Engineering University, Harbin, China
- 3 College of Information and Communication Engineering, Harbin Engineering University, Harbin, China
International Journal of Communications, Network and System Sciences·Volume 10 (2017)·Pages 128–137·Published 14 August 2017·DOI10.4236/ijcns.2017.108B014
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Abstract
In order to solve the recognition of polyphase code radar signal, this paper gives two methods based on Frank code, i.e. the high-order spectrum recognition method and the fractional Fourier transform (FRFT) method, by analyzing the micro characteristics of polyphase code signals in time and frequency domain respectively. And a recognition algorithm based on Wigner-Hough transform (WHT) is developed in this paper. We verify the validity of each method by computer simulation and give relative merits and demerits. A set of results demonstrate that the algorithm based on Wigner-Hough transform has better recognition performance in low signal-to-noise (SNR) than others.
KeywordsRadar Signal ProcessingPolyphase CodeFractional Fourier TransformWigner-Hough Transform
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