Adaptive subsample delay estimator using windowed correlation
Maskell, Douglas L., and Woods, Graham S. (2004) Adaptive subsample delay estimator using windowed correlation. In: Proceedings of Analog and Digital Techniques in Electrical Engineering TENCON 2004 Region 10 Conference (1), pp. 467-470. From: Analog and Digital Techniques in Electrical Engineering TENCON 2004 Region 10 Conference, 21-24 November 2004, Chiang Mai, Thailand.
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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 situation.
|Item Type:||Conference Item (Refereed Research Paper - E1)|
|Keywords:||delay; phase measurement; signal measurement|
|Date Deposited:||19 Nov 2010 00:59|
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