A Fast Design Method for Perfect-Reconstruction Uniform Cosine-Modulated Filter Banks

被引：16

作者：

Doblinger, Gerhard ^{[1
]}

机构：

[1] Vienna Univ Technol, Inst Telecommun, A-1040 Vienna, Austria

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 2012年 / 60卷 / 12期

关键词：

Cosine-modulated filter banks; iterative quadratic programming; perfect-construction filter banks; second-order cone programming; PROTOTYPE FILTERS; LINEAR-PHASE; QMF BANKS; OPTIMIZATION; FORMULATION;

D O I：

10.1109/TSP.2012.2217139

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 correspondence, we present a new and fast design algorithm for perfect-reconstruction (PR), maximally decimated, uniform, cosine-modulated filter banks. Perfect reconstruction is obtained within arithmetic machine precision. The new design does not need numerical optimization routines and is significantly faster than a competing method based on second-order cone programming (SOCP). The proposed design algorithm finds the optimumsolution by iteratively solving a quadratic programming problem with linear equality constraints. By a special modification of the basic algorithm, we obtain PR filter banks with high stopband attenuations. In addition, fast convergence is verified by designing PR filter banks with up to 128 channels.

引用

页码：6693 / 6697

页数：5

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