Design of Arbitrary Complex Coefficient WLS FIR Filters With Group Delay Constraints

被引：9
|
作者：
Lin, Zhiping [1 ]
Liu, Yongzhi [1 ]
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
来源：
IEEE TRANSACTIONS ON SIGNAL PROCESSING | 2009年 / 57卷 / 08期
关键词：
FIR filter; group delay; second-order cone programming; weighted least-squares; EIGENFILTER DESIGN; DIGITAL-FILTERS;
D O I：
10.1109/TSP.2009.2020372
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：
This correspondence presents a new method for the weighted least-squares (WLS) design of complex coefficient finite-impulse response (FIR) digital filters with arbitrary frequency responses by imposing an explicit group delay constraint. The nonlinearity of the group delay with respect to the filter coefficients is circumvented by linearization so that the group delay constraint can be successfully incorporated into the second-order cone programming (SOCP) framework. The effectiveness of the proposed method is illustrated by two nontrivial examples and compared favorably with some existing methods.
引用
收藏
页码：3274 / 3279
页数：6
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