【信号处理】自适应滤波法从宽带信号中提取单频信号附matlab代码

1 简介

本文对自适应滤波器进行了理论分析,并进行了自适应滤波器的计算机仿真,提出使用自适应滤波器将淹没于白噪声中的羊频正弦信号的方法.

2 完整代码

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                %%单频干扰自适应滤波器（陷波器）%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                   ​clear allclc​f=100;                                      %两干扰信号频差​C=5;                                       %原始信号幅值A=1;B=2;                                   %干扰信号幅值p=pi/4;                                    %干扰信号初相f1=50;                                     %干扰信号1频率f2=f1+f;                                   %干扰信号2频率                           N=1000;                                    %总采样长度t=linspace(0,1,N); s=C*sin(2*10*pi*t

最后

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