通过变换期望响应的全通数字滤波器群延迟逼近

2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). Pub Date : 2004-07-25 DOI:10.1109/ICASSP.2003.1201701

T. Matsunaga, M. Ikehara

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引用次数: 1

摘要

本文提出了一种具有等纹群延迟响应的全通数字滤波器的新设计方法。该方法基于迭代求解最小二乘解。在每次迭代中，对期望的群延迟响应进行变换，使其具有等纹误差。该方法计算量小，求解速度快。

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Group delay approximation of allpass digital filters by transforming the desired response

In this paper, we present a new design method of allpass digital filters with equiripple group delay response. This method is based on solving a least squares solution iteratively. At each iteration, the desired group delay response is transformed so as to have equiripple error. By this method, an equiripple solution is obtained very quickly with less computational complexity.

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来源期刊

2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03).

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