Eigenfilter design of real and complex coefficient prototypes for uniform and nonuniform filter banks

Author

Argenti, Fabrizio ; Del Re, Enrico

Author_Institution

Dept. of Electron. Eng., Florence Univ., Italy

Volume

3

fYear

1999

fDate

15-19 Mar 1999

Firstpage

1477

Abstract

In this study we propose a new method to design pseudo-QMF prototype filters to implement near perfect reconstruction (NPR) cosine-modulated filter banks. The method is based on the eigenfilter approach, that is simple to implement, but, nevertheless, is very efficient in designing high attenuation prototype filters. The method also allows to design complex coefficient prototypes that can be used to build nonuniform filter banks. The effectiveness of the method is demonstrated by means of some examples of design of both uniform and nonuniform filter banks

Keywords

channel bank filters; eigenvalues and eigenfunctions; linear phase filters; quadrature mirror filters; complex coefficient prototypes; eigenfilter design; high attenuation prototype filters; near perfect reconstruction cosine-modulated filter banks; nonuniform filter banks; pseudo-QMF prototype filters; real coefficient prototypes; uniform filter banks; Channel bank filters; Cost function; Design methodology; Electronic mail; Filter bank; Finite impulse response filter; Frequency response; Matched filters; Prototypes; Symmetric matrices;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on

Conference_Location

Phoenix, AZ

ISSN

1520-6149

Print_ISBN

0-7803-5041-3

Type

conf

DOI

10.1109/ICASSP.1999.756262

Filename

756262