A new approach to subband filter design

Author

Pillai, S. Radhakrishnan

Author_Institution

Dept. of Electr. & Electron. Eng., James Cook Univ. of North Queensland, Townsville, Qld., Australia

fYear

1993

fDate

1-3 Nov 1993

Firstpage

75

Abstract

In this paper almost-perfect reconstruction techniques for m-channel multirate systems are investigated. It is shown here that using two allpass filters it is possible to generate a three channel filter bank that eliminates various errors caused by the analysis/synthesis system. In particular, a technique to cancel alias and magnitude distortion is outlined here. It is also shown that, the classical two channel synthesis filters is a special case of the proposed synthesis filter bank selection procedure. Illustrative examples and design algorithms are included to supplement the theory

Keywords

all-pass filters; digital filters; filtering theory; network synthesis; alias cancellation; allpass filters; analysis/synthesis system; design algorithms; m-channel multirate systems; magnitude distortion cancellation; subband filter design; three channel filter bank; two channel synthesis filters; Algorithm design and analysis; Band pass filters; Channel bank filters; Filter bank; Signal analysis; Signal processing; Signal processing algorithms; Signal synthesis; Speech analysis; Speech coding; Speech synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 1993. 1993 Conference Record of The Twenty-Seventh Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

0-8186-4120-7

Type

conf

DOI

10.1109/ACSSC.1993.342473

Filename

342473