Output SNR analysis of the LPP-hough transform

  • Li X
  • Yang G
  • Gao G
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Recently, a new method called the local polynomial periodogram-Hough transform (LHT) was proposed for linear frequency modulated (LFM) signal detection. In this letter, a closed-form expression of the output signal-to-noise ratio is derived for the LHT, showing that the method exhibits a threshold effect for LFM signal detection. Comparisons with the pseudo-Wigner-Hough transform (PWHT) show that the threshold of the LHT is lower (better) than that of the PWHT.

Author-supplied keywords

  • Hough transform
  • Inear frequency modulated signal
  • Local polynomial periodogram
  • Output SNR

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  • Xiumei Li

  • Guoqing Yang

  • Guangchun Gao

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