Echo cancellation with the gamma filter

Author

Palkar, Malhar ; Principe, Jose C.

Author_Institution

Comput. Neuroeng. Lab., Florida Univ., Gainesville, FL, USA

Volume

iii

fYear

1994

fDate

19-22 Apr 1994

Abstract

Compares the Gamma filter with other feedback and feedforward structures in the problem of echo cancellation for digital data communication in the subsciber loop. The authors show that the IIR structures perform better than the corresponding FIR structures, and that the Gamma filter adapts faster than the cascade structure. They also show how the Gamma filter can be adapted using RLS for the filter weights and block LMS for the recursive parameter

Keywords

IIR filters; adaptive filters; digital communication; digital filters; echo suppression; feedforward; least mean squares methods; least squares approximations; recursive filters; subscriber loops; FIR structures; Gamma filter; IIR structures; block least mean squares; cascade structure; echo cancellation; feedback structures; feedforward structures; filter weights; recursive least squares; recursive parameter; Adaptive filters; Echo cancellers; Finite impulse response filter; IIR filters; Laboratories; Neural engineering; Nonlinear filters; Resonance light scattering; Transfer functions; Transversal filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on

Conference_Location

Adelaide, SA

ISSN

1520-6149

Print_ISBN

0-7803-1775-0

Type

conf

DOI

10.1109/ICASSP.1994.390013

Filename

390013