WLS Design of Variable Fractional-Delay FIR Filters Using Coefficient Relationship

被引：29

作者：

Huang, Yun-Da ^{[1
]}

Pei, Soo-Chang ^{[2
]}

Shyu, Jong-Jy ^{[1
]}

机构：

[1] Natl Univ Kaohsiung, Dept Elect Engn, Kaohsiung 811, Taiwan

[2] Natl Taiwan Univ, Dept Elect Engn, Taipei 106, Taiwan

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2009年 / 56卷 / 03期

关键词：

Variable filters; variable fractional-delay (VFD) finite-impulse response (FIR) filter; weighted least-squares (WLS) approach; LEAST-SQUARES DESIGN;

D O I：

10.1109/TCSII.2008.2011598

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：

In this brief, a new coefficient relationship is proposed for the design of variable fractional-delay (VFD) finite-impulse response (FIR) filters by the weighted least-squares (WLS) method so that the number of filter coefficients to be designed can approximately be halved. To reduce the computational cost, closed-form expressions for the elements of related vectors and matrices are derived. Several design examples are presented, and the comparisons show that the overall performance of the proposed method is comparable with that of the conventional method; however, the number of filter coefficients to be designed for the proposed method is about half of that in the conventional method.

引用

页码：220 / 224

页数：5

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