On the computation of a minimum-phase spectral factor

被引：15

作者：

Orchard, HJ ^{[1
]}

Willson, AN ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS | 2003年 / 50卷 / 03期

关键词：

digital filter; filter bank; filter design; minimum phase; polynomial factor; spectral factor;

D O I：

10.1109/TCSI.2003.808851

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：

The problem of finding the minimum-phase spectral factor of a linear-phase digital filter having double zeros on the unit circle is addressed. It is shown that a simple Newton-Raphson iterative algorithm can compute this factor quickly and accurately and a short Matlab program for doing the computation is given. The Newton-Raphson method is also compared to an alternative approach by finding the zeros of polynomials. The accuracy of solutions obtained is of major emphasis in the work.

引用

页码：365 / 375

页数：11

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