%0 Journal Article
%T Cumulant Projection Method for Two-Dimentional Harmonics Frequency Estimation in Colored Non-Gaussian Noise<br>非高斯有色噪声背景下二维谐波频率估计的累积量投影方法
%A Zhang Kun-lei
%A Wang Shu-xun
%A Wang Fei
%A <br>张坤雷
%A 王树勋
%A 汪飞
%J 电子与信息学报
%D 2007
%I 
%X The problem of concern here was the two-dimensional (2-D) harmonic frequency estimation in colored non-Gaussian noise.The 2-D cumulant projection theorem of complex linear non-Ganssian process was presented. The noise auto-correlation estimation was obtained based on this theorem by skillfully constructing a high-order cumulant of the complex noisy harmonic.Then a generalized eigen-value problem was solved to prewhiten the noise space.Finally 2-D MUSIC was employed to retrieve the 2-D harmonic frequencies.This method can effectively extract frequencies from colored non-Gaussian noise,even though the noise is symmetrically-distributed or there exists quadratic phase coupling.Theory and algorithm are illustrated by simulation examples.
%K Harmonic
%K Cumulant projection
%K Non-Gaussian colored
%K Frequency estimation<br>谐波
%K 累积量投影
%K 非高斯有色
%K 频率估计
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=3A3B6EBA50BEC1A255588DAB9997B83D&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=F3090AE9B60B7ED1&sid=A7D54564544DD8A6&eid=32410D58B7F4395D&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=10