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Volume 30 Issue 9
Jan.  2011
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Xiong Gang Yang Xiao-niu Zhao Hui-chang. Parameter Estimation of Reconnaissance Signal Combined PN and LFM Based on Smoothed Pseudo Wigner Distribution[J]. Journal of Electronics & Information Technology, 2008, 30(9): 2115-2119. doi: 10.3724/SP.J.1146.2007.00205
Citation: Xiong Gang Yang Xiao-niu Zhao Hui-chang. Parameter Estimation of Reconnaissance Signal Combined PN and LFM Based on Smoothed Pseudo Wigner Distribution[J]. Journal of Electronics & Information Technology, 2008, 30(9): 2115-2119. doi: 10.3724/SP.J.1146.2007.00205

Parameter Estimation of Reconnaissance Signal Combined PN and LFM Based on Smoothed Pseudo Wigner Distribution

doi: 10.3724/SP.J.1146.2007.00205
  • Received Date: 2007-02-01
  • Rev Recd Date: 2007-09-24
  • Publish Date: 2008-09-19
  • This paper presents a smoothed pseudo Wigner distribution for PN phase modulation composite reconnaissance signal recognition and deduces SPWVD functions for PRBC-LFM reconnaissance signal. By profile SPWVD distribution analysis,features related to carrier frequency, FM slope and PN parameters such as sub-pulse width, code-length and pulse cycle are extracted. Then a method for the parameter evaluation is presented. Finally, theoretical analysis results are simulated under Gaussian noise conditions. Experiments show the method is superior to these methods based on the spectral correlation method and the Wigner distribution.
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