Discrete-coefficient linear-phase prototypes for PR cosine-modulated filter banks

Author

Mertins, Alfred

Author_Institution

Dept. of Electr. & Electron. Eng., Western Australia Univ., Nedlands, WA, Australia

Volume

3

fYear

1998

fDate

12-15 May 1998

Firstpage

1433

Abstract

A method for the design of perfect reconstruction (PR) linear-phase prototypes for cosine-modulated filter banks with discrete coefficients is presented. Such prototypes are of great interest for efficient hardware implementations. The design procedure is based on a subspace approach that allows to linearly combine PR prototype filters in such a way that the resulting filter also is a PR prototype. Within a given subspace the weights of the optimal linear combination can be easily computed via an eigenanalysis. The filter design is carried out iteratively, while the PR property is guaranteed throughout the design process. No non-linear optimization routine is needed

Keywords

circuit optimisation; eigenvalues and eigenfunctions; filtering theory; iterative methods; signal reconstruction; cosine-modulated filter banks; design procedure; discrete coefficients; eigenanalysis; filter design; iterative design; optimal linear combination; perfect reconstruction linear-phase filters; prototype filters; subspace approach; Australia; Channel bank filters; Design methodology; Filter bank; Hardware; Lattices; Process design; Prototypes; Signal synthesis; Visual communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on

Conference_Location

Seattle, WA

ISSN

1520-6149

Print_ISBN

0-7803-4428-6

Type

conf

DOI

10.1109/ICASSP.1998.681717

Filename

681717