%0 Journal Article
%T A New Estimation Method of Instantaneous Frequency Rate for Multicomponent Polynomial Phase Signal<br>一种新的mc-PPS瞬时频率变化率的估计
%A Zhang Wen-wen Si Xi-cai
%A <br>张雯雯
%A 司锡才
%J 电子与信息学报
%D 2008
%I 
%X This paper discusses some redundancy steps of FRFT in signal detection based on the decomposition of FRFT, and puts forward a Reduced FRFT (RFRFT) algorithm. Then it discusses several important characters of RFRFT in detail. Combined with the phase difference method, it proposes the product RFRFT arithmetic to realize the Instantaneous Frequency Rate (IFR) estimation of mc-PPS. And it enhances the parameter resolution rate of RFRFT by angle transform. This method is easy to calculate and implement. Simulation results validate the method is able to suppress the noise and cross-terms, and can apply to low SNR environment.
%K Multicomponent Polynomial Phase Signal(mc-PPS)
%K Instantaneous Frequency Rate(IFR)
%K Parameter estimation
%K FRactional Fourier Transform(FRFT)
%K Reduced arithmetic<br>多分量多项式相位信号
%K 瞬时频率变化率
%K 参数估计
%K 分数阶傅里叶变换
%K 简化算法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=45F04CF48FB5FAFC078CB28B21F39E29&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=59906B3B2830C2C5&sid=74D3A5A7A96E9D84&eid=95FC06C4A2427BD6&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=10