%0 Journal Article
%T DOA Estimation Based on Time-Frequency Maximum Likelihood<br>一种新的时频极大似然DOA估计方法
%A Tian Da
%A Zhang Hong
%A CHEN Tian-qi
%A <br>田达
%A 张洪
%A 陈天麒
%J 电子与信息学报
%D 2005
%I 
%X An algorithm is presented for Direction-Of-Arrival (DOA) estimation of nonstationary signals impinging on the antenna array. The proposed method establishes a simplified array signal model in the time-frequency (t-f) domain by evaluating the cross Pseudo Wigner-Ville Distributions (PWVD) between the outputs of the reference element and other elements of the array, and provides a signal selective DOA estimator based on the t-f maximum likelihood. Compared with the Spatial Time-Frequency Distributions (STFD) matrices-based methods, the proposed method can make full use of the crossterms in the t-f plane, and the computational load is significantly reduced. Simulations are provided to demonstrate the effectiveness of the method.
%K Nonstationary signals
%K Time-frequency maximum likelihood
%K DOA estimation
%K PWVD
%K STFD<br>非平稳信号
%K 时频极大似然
%K DOA估计值
%K Wigner-Ville分布
%K 空间时频分布
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=FD7A4DC52C7686B4&yid=2DD7160C83D0ACED&vid=DB817633AA4F79B9&iid=0B39A22176CE99FB&sid=798FBE8DE1A255B1&eid=847B14427F4BF76A&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=9