一种基于改进LMS算法的语音消噪方法  

A Voice De-Noise Method Based on the Adaptive LMS Algorithm

作　　者：李善姬[1] 尹沧涛[1] 

机构地区：[1]延边大学工学院,吉林延吉133002

出　　处：《测控技术》2010年第10期35-37,共3页Measurement & Control Technology

摘　　要：为了提高LMS自适应滤波算法的性能,在对一些变步长LMS算法进行分析的基础上,提出了一种改进的变步长LMS算法。利用所提出的算法对被噪声污染的语音信号进行了消噪仿真实验,并进行了主客观性能测试。仿真结果与性能测试分析表明,采用本算法消除噪声后的语音基本接近原始语音。A modified adaptive variable step size LMS algorithm is presented via analysis of some variable step size LMS algorithm to improve performance of LMS adaptive filtering algorithm.Some computer simulation experiments of noise pollution de-noising are made,then some subjective and objective tests are carried on.The simulation result and the performance analysis of the tests show that it is close to the original voice of the signal de-noising by the algorithm presented.

关 键 词：自适应滤波器 LMS算法 变步长 语音 消噪 

分 类 号：TN911.7[电子电信—通信与信息系统]