A New Method for Least-Squares and Minimax Group-Delay Error Design of Allpass Variable Fractional-Delay Digital Filters

被引：3

作者：

Chan, Cheng-Han ^{[3
]}

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

[3] AF Inst Technol, Dept Aviat & Commun Elect, Kaohsiung 820, Taiwan

来源：

EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING | 2010年

关键词：

EIGENFILTER APPROACH; FIR; IIR; 1-D; CD;

D O I：

10.1155/2010/976913

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：

A double-loop iterative method is proposed to design allpass variable fractional-delay (VFD) digital filters basing on the minimization of root-mean-squared group-delay error. In the inner loop, an iterative quadratic optimization is proposed to replace the original nonlinear optimization for the minimization of root-mean-squared group-delay error, while an iterative weighting-updated technique is applied in the outer loop to further reduce the maximum group-delay error. Several examples will be presented to demonstrate the effectiveness and good convergence of the proposed method.

引用

页数：10

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