Non-uniform filter banks based on a multi-prototype cosine modulation

Author

Argenti, F. ; Re, E. Del

Author_Institution

Dipartimento di Ingegneria Elettronica, Florence Univ., Italy

Volume

3

fYear

1996

fDate

7-10 May 1996

Firstpage

1511

Abstract

A method of designing non-uniform FIR filter banks is presented. It is based on the cosine modulation of more than one prototype, having different passbands. The method aims at the cancellation of the main component of aliasing: this imposes constraints on the prototypes, which become dependent of each other. The method is simple and requires numerical optimization only for the narrowest prototype, being the others derived in a straightforward way from this one. For this reason, the method seems particularly suitable when banks with a large number of coefficients must be designed

Keywords

FIR filters; band-pass filters; filtering theory; modulation; signal processing; aliasing cancellation; filter coefficients; filter prototypes; multiprototype cosine modulation; nonuniform FIR filter banks design; numerical optimization; passbands; signal processing; Auditory system; Channel bank filters; Design methodology; Filter bank; Finite impulse response filter; Frequency; Humans; Optimization methods; Passband; Prototypes;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on

Conference_Location

Atlanta, GA

ISSN

1520-6149

Print_ISBN

0-7803-3192-3

Type

conf

DOI

10.1109/ICASSP.1996.543950

Filename

543950