DOI QR코드

DOI QR Code

Output SNR Analysis of the LPP-Hough Transform

  • Li, Xiumei (School of Information Science and Engineering, Hangzhou Normal University) ;
  • Yang, Guoqing (School of Science and Technology, Zhejiang University) ;
  • Gao, Guangchun (School of Information and Electrical Engineering, Zhejiang University City College)
  • 투고 : 2012.05.02
  • 심사 : 2012.08.13
  • 발행 : 2013.02.01

초록

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.

키워드

참고문헌

  1. S. Barbarossa, "Analysis of Multicomponent LFM Signals by a Combined Wigner-Hough Transform," IEEE Trans. Signal Process., vol. 43, no. 6, 1995, pp. 1511-1515. https://doi.org/10.1109/78.388866
  2. L. Cirillo, A. Zoubir, and M. Amin, "Parameter Estimation for Locally Linear FM Signals Using a Time-Frequency Hough Transform," IEEE Trans. Signal Process., vol. 56, no. 9, 2008, pp. 4162-4175. https://doi.org/10.1109/TSP.2008.924797
  3. P. Rao and F. Taylor, "Estimation of Instantaneous Frequency Using the Discrete Wigner Distribution," Electron. Lett., vol. 26, no. 4, 1998, pp. 246-248.
  4. G. Bi, X. Li, and C. See, "LFM Signal Detection Using LPP-Hough Transform," Signal Process., vol. 91, no. 6, 2011, pp. 1432-1443. https://doi.org/10.1016/j.sigpro.2010.08.001
  5. V. Katkovnik, "A New Form of Fourier Transform for Time-Frequency Estimation," Signal Process., vol. 47, no. 2, 1995, pp. 187-200. https://doi.org/10.1016/0165-1684(95)00107-7
  6. X. Li et al., "Local Polynomial Fourier Transform: A Review on Recent Developments and Applications," Signal Process., vol. 91, no. 6, 2011, pp. 1370-1393. https://doi.org/10.1016/j.sigpro.2010.09.003
  7. X. Xia, "Discrete Chirp-Fourier Transform and Its Applications to Chirp Rate Estimation," IEEE Trans. Signal Process., vol. 48, no. 11, 2000, pp. 3122-3133. https://doi.org/10.1109/78.875469
  8. D.H. Ballard, "A Survey of the Hough Transform," Computer Vision, Graphics, Image Process., vol. 44, no. 1, 1988, pp. 87-116. https://doi.org/10.1016/S0734-189X(88)80033-1