The theory and design of arbitrary-length cosine-modulated filter banks and wavelets, satisfying perfect reconstruction

被引：75

作者：

Nguyen, TQ ^{[1
]}

Koilpillai, RD ^{[1
]}

机构：

[1] ERICSSON INC,ADV DEV & RES GRP,RES TRIANGLE PK,NC 27709

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1996年 / 44卷 / 03期

关键词：

D O I：

10.1109/78.489021

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：

It is well known that FIR filter banks that satisfy the perfect-reconstruction (PR) property can be obtained by cosine modulation of a linear-phase prototype filter of length N = 2 nM, where M is the number of channels, In this paper, we present a PR cosine-modulated filter bank where the length of the prototype filter is arbitrary, The design is formulated as a quadratic-constrained least-squares optimization problem, where the optimized parameters are the prototype filter coefficients. Additional regularity conditions are imposed on the filter bank to obtain the cosine-modulated orthonormal bases off compactly supported wavelets. Design examples are given.

引用

页码：473 / 483

页数：11

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