小波变换域多路回波消除自适应滤波算法  

Wavelet Transform Domain Newuon/lms Algorithm for Stereo Acoustic Echo Cancellation

作　　者：周元建[1] 彭晗[1] 

机构地区：[1]广东省公安司法管理干部学院,广东广州510232

出　　处：《湖南工程学院学报（自然科学版）》2004年第1期5-9,共5页Journal of Hunan Institute of Engineering(Natural Science Edition)

摘　　要：提出了一种小波变换域Newton/LMS多路回波消除自适应算法.新算法使用输入信号经离散小波变换后的细节分量调节自适应滤波器系数.当新算法应用于多路回波消除时具有很高的收敛速度和收敛精度,取得了较好的回波消除效果.仿真表明了新算法的有效性.In this paper, we propose a wavelet transform domain Newton/LMS algorithm for stereophonic acoustic echo cancellation. The new algorithm uses the detail component of input signal under the discrete wavelet transform to adjust the coefficients of the adaptive filter. It has faster convergence speed and more accuracy when applied to stereo acoustic echo cancellation because the correlation between the transformed signals is reduced. Simulation in MATLAB shows the efficiency of the new algorithm.

关 键 词：小波变换 多路回波消除 自适应算法 

分 类 号：O153.4[理学—数学]