Title :
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
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;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-1775-0
DOI :
10.1109/ICASSP.1994.389673
