摘要
针对单参考输入自适应噪声抵消器在多噪声源情况下除噪效果不理想的问题 ,根据多参考输入自适应噪声抵消器模型 ,推导了多参考输入最小均方算法 ,并给出其改进算法。以语音信号为例 ,给出了多参考输入自适应语音消噪算法及多参考输入自适应语音噪声抵消器的实现方案 ,并进行了计算机仿真 ,给出了仿真结果。
Normally it is not ideal for single reference adaptive noise canceller to eliminate noises under circumstance of more than one noise source. So according to the model of multiple reference adaptive noise canceller, this paper deduces a multiple reference least mean square algorithm(MLMS)and presents its improved algorithm(IMLMS). As an application in voice signal processing, this paper presents an multiple reference adaptive algorithm of elimination speech noises(VMLMS), and it also presents the implement scheme of multiple reference adaptive speech noise canceller. Moreover, we gieve out the simulation results.
出处
《电力系统通信》
2000年第5期13-16,共4页
Telecommunications for Electric Power System
关键词
自适应噪声抵消器
算法
LMS算法
通信
the model of multiple reference adaptive noise canceller
least mean square(LMS)algorithm
adaptive speech noise canceller
simulation
