On time delay estimation using an FIR filter

被引：27
|
作者：
So, HC [1 ]
机构：
[1] City Univ Hong Kong, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China
来源：
SIGNAL PROCESSING | 2001年 / 81卷 / 08期
关键词：
least-squares filtering; time delay estimation; bias removal;
D O I：
10.1016/S0165-1684(01)00098-6
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A popular technique for time delay estimation is to use an FIR filter to model the time difference and the filter weights are interpolated with a sine function to obtain the delay estimate. However, the sine interpolator requires a sufficiently long filter length for accurate delay estimation. In this paper, we propose to process the filter weights via a least-squares-based method in order to acquire optimum delay estimates even with short filter lengths. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：1777 / 1782
页数：6
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