%0 Journal Article
%T FFA and TFA-Based Interception of LPI Frequency Hopping Signal<br>基于快速折叠算法和时频分析的LPI跳频信号截获
%A Wang Guo-hua
%A Yu Neng-hai
%A <br>王国华
%A 俞能海
%J 电子与信息学报
%D 2007
%I 
%X A FFA and TFA based interception of LPI frequency hopping signal is presented in this paper. the algorithm can detect the frequency hopping signal effectively in low Signal to Noise Ratio (SNR); By selecting the range of the folding period and resolution properly, the parameters of frequency hopping signal such as hop duration, time offset and hop frequency can be estimated. Finally, simulation and performance analysis illustrate that the algorithm can intercept the frequency hopping signal under 0dB, and has better performance than the adaptive threshold detection.
%K Low probability intercept signal
%K Frequency hopping signal
%K Smoothed pseudo Wigner-Vilve distribution
%K Fast folding algorithm<br>低截获概率信号
%K 跳频信号
%K 平滑伪Wigner-Ville分布
%K 快速折叠算法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=DC590322F96F1D99&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=DF92D298D3FF1E6E&sid=EC8C1F9A3D77BCB9&eid=FAE014814EB8ABBA&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=9