Optimum noise reduction of conjugate quadrature filter bank

被引：2

作者：

Sakitani, K ^{[1
]}

Maeda, H ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Commun Engn, Suita, Osaka 5650871, Japan

来源：

SIGNAL PROCESSING | 2000年 / 80卷 / 05期

关键词：

conjugate quadrature filter bank; noise reduction; L infinity optimization;

D O I：

10.1016/S0165-1684(99)00170-X

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 paper considers design of L-infinity- and L-2-optimal CQF bank which reduces the influence of the additive noise on the output in an optimal fashion. To deal with this design problem, we first give a glance at the characterization of solutions set of the so-called Smith-Barnwell equation, whereby we derive the explicit expression of all optimum solutions for the deterministic-but-unknown disturbance. We also treat the stochastic noise case, and show that the average power of the output due to the channel noise cannot be controlled by the choice of filters. Numerical examples are given to illustrate the results developed in the paper. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：819 / 829

页数：11

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