matlab小波去噪程序

关于MATLAB小波信号去噪 %用小波函数'db6'对信号进行3层分解 [c,l]=wavedec(y,3,'db6'); lev=3; xdh=wden(y,'sqtwolog','h','sln',lev,'sym4'); subplot(2,2,3); plot(sound,xdh); subplot(121); plot(sound); title('原始语音信号');