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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2009> 18(4): 478-483
LIU Feng, XU Hui-fa, SUN Da-peng, TAO Ran, WANG Yue. Feature Extraction of Symmetrical Triangular LFMCW Signal Using Wigner-Hough Transform[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2009, 18(4): 478-483.
Citation: LIU Feng, XU Hui-fa, SUN Da-peng, TAO Ran, WANG Yue. Feature Extraction of Symmetrical Triangular LFMCW Signal Using Wigner-Hough Transform[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2009, 18(4): 478-483.
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Feature Extraction of Symmetrical Triangular LFMCW Signal Using Wigner-Hough Transform

  • School of Information and Electronics, Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, Naval Aeronautical Engineering Institute, Yantai 264001, China

  • Received Date:2008-08-20
    Abstract
  • Feature extraction of symmetrical triangular linear frequency modulation continuous wave (LFMCW) signal is studied. Combined with its peculiar characteristics, a novel algorithm based on Wigner-Hough transform (WHT) is presented for the detection and parameter estimation of this type of waveform. The initial frequency and chirp rate of each segment of this wave are estimated, and the peak-value searching steps in the parameter space is given. Compared with Wigner-Ville distribution (WVD), Pseudo-Wigner-Ville distribution (PWD) and Smoothed-Peseudo-Wigner-Ville distribution (SPWD), WHT has proven itself to be the best method for feature extraction of symmetrical triangular LFMCW signal. In the end, Monte-Carlo simulations under different SNRs are carried out, with validating results on this method.
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