Demo entry 6628079

noise

   

Submitted by noise on Jul 01, 2017 at 06:26
Language: Matlab. Code size: 128 Bytes.

%加噪
x_original=y;
t=0:1/8000:(size(x_original)-1)/8000;
Au=0.03;
noise=[Au*cos(2*pi*5000*t)]';
x_addnoise=x_original+noise;

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