%0 Journal Article
%T A New Method of Adaptive Time Delay Estimation in Impulsive Noise Environments<br>脉冲噪声环境下的自适应时间延迟估计新方法
%A Sun Yong-mei
%A Qiu Tian-shuang
%A <br>孙永梅
%A 邱天爽
%J 电子与信息学报
%D 2005
%I 
%X The Adaptive Fractional Lower order Covariance (AFLC) time delay estimation method performs robust under impulsive noise environments, but the values of parameters a and b have effects on estimated precision. According to the non-stationary property of noises, this paper proposes a dynamic parameter estimation method and further proposes a Modified Adaptive Fractional Lower order Covariance (M-AFLC) method. Computer simulation indicates that the iterative parameter estimation method performs well under both stationary and non-stationary noise conditions. It also shows that the M-AFLC maintains the merits of the AFLC, and at the same time the proposed method avoids the degradation of AFLC while the restriction unsatisfied.
%K Signal processing
%K Impulsive noise
%K a -stable distribution
%K Parameter estimation
%K Time delay estimation<br>信号处理
%K 脉冲噪声
%K α稳定分布
%K 参数估计
%K 时间延迟
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=2C87B43064663520&yid=2DD7160C83D0ACED&vid=DB817633AA4F79B9&iid=94C357A881DFC066&sid=3EE58D91F4253193&eid=195767709E606C85&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=6