%0 Journal Article
%T Study on Reconnaissance Signal Parameter Evaluation of PN and LFM Based on Time-Frequency Analysis<br>基于时频分析的伪码与线性调频复合体制侦察信号参数估计研究
%A Lin jun
%A Xiong Gang
%A Wang Zhi-xue
%A <br>林俊
%A 熊刚
%A 王智学
%J 电子与信息学报
%D 2006
%I 
%X 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.
%K Parameter evaluation
%K PN
%K LFM
%K Time-frequency analysis<br>参数估计
%K 伪码
%K 线性调频
%K 时频分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=BC033BE8D64EC129&yid=37904DC365DD7266&vid=D3E34374A0D77D7F&iid=B31275AF3241DB2D&sid=08628F47AB73D65E&eid=94D812A784CFA7CC&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=3&reference_num=10