Adaptive frequency selective filters

Author

Halfin, Marcia ; Coutu, Gerard ; Sturim, Doug ; Stearns, Samuel D.

Author_Institution

Electr. Boat Div., Gen. Dynamics, Groton, CT, USA

fYear

1993

fDate

1-3 Nov 1993

Firstpage

1579

Abstract

The theory and performance of adaptive frequency selective filters is examined. The frequency sampling filter is a realization of a FIR filter as the cascade of an all-zero FIR filter with a bank of IIR digital resonators. The result of such a realization is that each coefficient can be directly identified with an amplitude of the transfer function at a particular frequency. The update method is the LMS algorithm, with the desired signal as a delayed version of the input. A discussion of the application of the adaptive frequency sampling filters to sub-band coding is included

Keywords

adaptive filters; cascade networks; digital filters; encoding; filtering and prediction theory; least squares approximations; transfer functions; FIR filter; IIR digital resonators; LMS algorithm; all-zero FIR filter; daptive frequency selective filters; filter coefficient; filter performance; filter theory; frequency sampling filter; sub-band coding; transfer function; update method; Adaptive filters; Digital filters; Filtering theory; Finite impulse response filter; Frequency; IIR filters; Least squares approximation; Resonator filters; Sampling methods; Transfer functions;

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.1993.342347

Filename

342347