A time varying step size normalized LMS echo canceler algorithm

Author

Meana, Hector Perez ; De Rivera, Luis Nino ; Miyatake, Mariko Nakano ; Sanchez, Fausto Casco ; Garcia, Juan Carlos Sanchez

Author_Institution

Dept. of Electr. Eng., Univ. Autonoma Metropolitana, Mexico City, Mexico

Volume

ii

fYear

1994

fDate

19-22 Apr 1994

Abstract

This paper proposes a time varying normalized LMS (TVS-NLMS) algorithm for adapting an echo canceler structure. Proposed algorithm reduces distortion during double-talk, without increasing the computational cost nor decreasing the convergence rate of the normalized LMS algorithm significantly. Simulation results confirm the desirable features of the proposed schema

Keywords

acoustic signal processing; convergence of numerical methods; echo suppression; least mean squares methods; transient response; FIR filter; TVS-NLMS; computational cost; convergence rate; distortion reduction; double-talk; impulse response; normalized LMS algorithm; normalized LMS echo canceler algorithm; simulation results; time varying step size; white noise; Additive noise; Computational efficiency; Computational modeling; Convergence; Degradation; Echo cancellers; Error correction; Least squares approximation; Signal generators; Signal to noise ratio;

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.1994.389673

Filename

389673