Improved iterative methods for the design of quadrature mirror-image filter banks

Author

Xu, Hua ; Lu, Wu-Sheng ; Antoniou, Athanasios

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

Volume

43

Issue

5

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

363

Lastpage

371

Abstract

An iterative method for the design of two-band quadrature mirror-image filter (QMF) banks proposed by Chen and Lee is examined and improved by deriving simple, explicit, and precise expressions for the evaluation of two integrals involved in the computation of the objective function. The method is then extended to the design of QMF banks with low reconstruction delays and to the design of filter banks with equiripple complex reconstruction error. The paper concludes with design examples which illustrate the efficiency and performance of the algorithms developed and the quality of the filter banks that can be designed

Keywords

delays; encoding; filtering theory; iterative methods; quadrature mirror filters; signal reconstruction; equiripple complex reconstruction error; filter bank quality; iterative methods; objective function; reconstruction delays; signal reconstruction; two-band quadrature mirror-image filter banks; Algorithm design and analysis; Channel bank filters; Delay; Design methodology; Filter bank; Finite impulse response filter; Iterative methods; Minimax techniques; Phase distortion; Signal processing algorithms;

fLanguage

English

Journal_Title

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7130

Type

jour

DOI

10.1109/82.494386

Filename

494386