Journal of Systems Engineering and Electronics ›› 2010, Vol. 32 ›› Issue (3): 518-522.

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Micro-motion feature extraction algorithm of millimeter seeker based on TFD-Hough transform

LIU Jin, LI Jin-liang, MA Liang, WANG Xue-song, WANG Guo-yu   

  1. (School of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China)
  • Online:2010-03-18 Published:2010-01-03

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Abstract:

It is pointed out that the micro-Doppler signature of the rotating target is three parameters sinusoidal frequency modulation (FM) signal by analyzing the relationship of micro-Doppler and micro-motion parameters. According to this signal form, the time-frequency character of multi-component sinusoidal FM is deduced, and a Hough transform method to detect three parameter sinusoidal curve in time-frequency plane is proposed, then a micro-motion feature exaction method based on TFD-Hough transform is provided. The simulation and the real data result show the method is effective and robust.

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