Matlab doesn't recognise sigshift

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Annabell Bennett
Annabell Bennett 2020-6-15
编辑： Walter Roberson 2020-6-15
Hey guys!
For some reason MATLAB doesn't recognise sigshift, sigadd and sigfold. Is there a reason why? Any help would be great! This is my code so far.
Thank you!
Annabell
x = [3, 11, 7, 0, -1, 4, 2];
nx=[-3:3];
[y,ny] = sigshift(x,nx,2);
w = randn(1,length(y)); nw = ny;
[y,ny] = sigadd(y,ny,w,nw);
[x,nx] = sigfold(x,nx);
[rxy,nrxy] = conv_m(y,ny,x,nx);

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回答（1 个）

Star Strider
Star Strider 2020-6-15
  2 个评论
Annabell Bennett
Annabell Bennett 2020-6-15
Is there a specific example that I can use?
Walter Roberson
Walter Roberson 2020-6-15
编辑：Walter Roberson 2020-6-15
You can copy the code for sigshift from https://www.mathworks.com/matlabcentral/fileexchange/2189-digital-signal-processing-using-matlab
But then sigadd() and sigfold() will be undefined, so the easiest thing to do is to install that File Exchange contribution.

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