Lin Jun, Xiong Gang, Wang Zhi-Xue. Study on Reconnaissance Signal Parameter Evaluation of PN and LFM Based on Time-Frequency Analysis[J]. Journal of Electronics & Information Technology, 2006, 28(6): 1045-1048.
Citation:
Lin Jun, Xiong Gang, Wang Zhi-Xue. Study on Reconnaissance Signal Parameter Evaluation of PN and LFM Based on Time-Frequency Analysis[J]. Journal of Electronics & Information Technology, 2006, 28(6): 1045-1048.
Lin Jun, Xiong Gang, Wang Zhi-Xue. Study on Reconnaissance Signal Parameter Evaluation of PN and LFM Based on Time-Frequency Analysis[J]. Journal of Electronics & Information Technology, 2006, 28(6): 1045-1048.
Citation:
Lin Jun, Xiong Gang, Wang Zhi-Xue. Study on Reconnaissance Signal Parameter Evaluation of PN and LFM Based on Time-Frequency Analysis[J]. Journal of Electronics & Information Technology, 2006, 28(6): 1045-1048.
A time-frequency analysis method for reconnaissance signal recognition of PN and LFM is studied. Wigner time-frequency distribution function for PRBC-LFM reconnaissance signal is deduced. By WVD 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, analysis results are simulated under Gaussian noise conditions. Simulation show the method is superior to spectral correlation method on PRBC-LFM signal recognition and not limited to relations between bandwidth of FM and spectral width of PN.
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