Adaptive discrete cosine transform

Author

Bukowinski, Stephen J. ; Gerhardt, Lester ; Fargues, Monique ; Coutu, Gerard

Author_Institution

Hamilton Stand., Windsor Locks, CT, USA

Volume

2

fYear

1995

fDate

Oct. 30 1995-Nov. 1 1995

Firstpage

1036

Abstract

The theory and performance of the adaptive discrete cosine transform filter is examined. The discrete cosine transform filter is a realization of an FIR filter as the cascade of an all-zero FIR filter with a bank of IIR digital resonators. Each bank has a single magnitude and a single phase. The result of such a realization is that each coefficient can be directly identified with an amplitude or a phase of the transfer function at a particular frequency when run as an adaptive filter. The update method examined is the LMS algorithm, with the coefficients being adapted as the magnitudes and phases at a full range of frequencies.

Keywords

adaptive filters; FIR filter; IIR digital resonators; LMS algorithm; adaptive discrete cosine transform filter; all-zero FIR filter; filter coefficient; frequency; magnitude; phase; transfer function; update method; Adaptive filters; Digital filters; Discrete cosine transforms; Filtering theory; Finite impulse response filter; Frequency; IIR filters; Least squares approximation; Resonator filters; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 1995. 1995 Conference Record of the Twenty-Ninth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-8186-7370-2

Type

conf

DOI

10.1109/ACSSC.1995.540857

Filename

540857