Adaptive subsample delay estimation using windowed correlation

被引：4
|
作者：
Maskell, Douglas L. [1 ]
Woods, Graham S.
机构：
[1] Nanyang Technol Univ, Sch Comp Engn, Singapore, Singapore
[2] James Cook Univ N Queensland, Sch Engn, Townsville, Qld 4811, Australia
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2006年 / 53卷 / 06期
关键词：
adaptive filtering; delay estimation (DE); subsample delay; windowed correlation;
D O I：
10.1109/TCSII.2006.875327
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：
An on-line delay estimation algorithm based upon the windowed average magnitude difference function (AMDF) that is suitable for determining the subsample delay between two noisy signals is introduced. The new estimator uses the AMDF to directly update the delay estimate, which is in turn used to adapt the coefficients of a fractional delay filter (FDF). The new estimator consists predominately of addition and subtraction operations and outperforms conventional FDF,based estimators in low signal-to-noise ratio situations.
引用
收藏
页码：478 / 482
页数：5
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