EFFICIENT DESIGN METHOD OF COSINE-MODULATED QMF BANKS SATISFYING PR PROPERTY

作     者：Tan Ying He Zhenya(Department of Radio Engineering, Southeast University, Nanjing 210096) Tan Ying He Zhenya(Department of Radio Engineering, Southeast University, Nanjing 210096)

作者机构：Department of Radio Engineering Southeast University Nanjing 

基　　金：Climbing Programme-National Key Project for Foundamental Research in China,Grant NSC92097 National Natural Science Foundation of China 

出 版 物：《Journal of Electronics(China)》 (电子科学学刊（英文版）)

年 卷 期：1999年第16卷第1期

页      码：51-57页

摘      要：In this paper the design problem of perfect-reconstruction cosine-modulated QMF banks has been formulated as a quadratic-constrained least-squares (QCLS) minimization problem in which all constrained matrices of the QCLS optimization problem are symmetric and positive definite. A cost function which is a convex function of desired prototype filter coefficients is constructed so that this kind of QCLS optimization problems can be efficiently solved. So a global minimizer of this problem can be easily obtained. Results of two design examples are presented to support the derivations and analyses.

主 题 词：Quadratic-constrained least-squares(QCLS) Cosine-modulated QMF banks Global optimization Penalty function searching (PS) approach 

学科分类：0711[理学-心理学类] 07[理学] 08[工学] 080401[080401] 0804[工学-材料学] 080402[080402] 

D　O　I：10.1007/s11767-999-0008-4

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