%0 Journal Article
%T Application of modified Morlet wavelet in featureextraction of radar signal to intra-pulse<br>基于Morlet小波在雷达信号脉内特征提取中的应用
%A YI Li
%A HE Yi-gang
%A FANG Ge-feng
%A FAN Xiao-teng
%A <br>易　丽
%A 何怡刚
%A 方葛丰
%A 樊晓腾
%J 计算机应用研究
%D 2013
%I 
%X In order to recognize different modulation methods of radar signals, estimating accurately the radar signal of the instantaneous frequency to analysis the signal's intra-pulse characteristics. By analyzing the wavelet-ridge theory and the affect of various parameters of the Morlet wavelet to extract the modulated radar signal wavelet-ridge characteristics, this paper proposed a modified Morlet wavelet. Then according to different modulation type of radar signals, it analyzed the correct conditions of wavelet-ridge features extraction, and proposed a method which called wavelet-ridge, it based on modified Morlet wavelet and could estimate instantaneous frequency of the radar signal. Simulation results show that, compared with common Morlet wavelet, based on the improved Morlet wavelet-ridge extract signal features have better precision and less noise.
%K instantaneous frequency
%K wavelet-ridge
%K Morlet wavelet
%K radar modulation signal<br>瞬时频率
%K 小波脊线
%K Morlet小波
%K 雷达调制信号
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=51EFA6F8AD1002434C687B79A0D6DA44&yid=FF7AA908D58E97FA&vid=340AC2BF8E7AB4FD&iid=CA4FD0336C81A37A&sid=9D453329DCCABB94&eid=A58CF3BAE79427D0&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=12