A Time Varying Step Size Normalized LMS Algorithm for Adaptive Echo Canceler Structures

Mariko NAKANO MIYATAKE  Hector PEREZ MEANA  Luis NIÑO de RIVERA O  Fausto CASCO SANCHEZ  Juan Carlos SANCHEZ GARCIA  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E78-A   No.2   pp.254-258
Publication Date: 1995/02/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Adaptive Signal Processing
Keyword: 
LSLMS,  echo cancellation,  double talk adaptive filtering,  

Full Text: PDF(348.6KB)>>
Buy this Article




Summary: 
This letter proposes a time varying step size normalized LMS (TVS-NLMS) algorithm for adaptive echo canceler structures. 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 using white noise and actual speech signals confirm the desirable features of the proposed scheme.