华北水利水电大学学报(自然科学版)

根据LMS算法性能特点,在Matlab环境下编写了基于LMS算法的有限长自适应滤波器的程序(*.m),用所设计的滤波器对受白噪声干扰的语音信号及正弦波信号进行滤波.理论分析和仿真结果表明,所设计的自适应滤波器具有快速的跟踪能力和收敛性能,且稳态误差较小.

According to the character of LMS algorithm,the programs(*.m) of finite adaptive filter based on LMS in Matlab is compiled,and the designed filter is used to accomplish the filter of audio signal and sine wave which are disturbed by white noise.The conclusion from the theoretic analysis and simulation result show that,the designed filter has fast track and convergency capability along with small steady-state error.