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Sorry to keep posting here but I am having issues with what I am doing still, I am not efficient with Matlab yet and like to understand your code but here is what the actual problem statement is
I do not want you to do the assignment for me but am stuck and would like some help if possible...
so I tried what you recommended and I am getting a error due to Matrix not being squared. So I am obviously doing something wrong
r=n;
x1_n=(0.9)^n*[u(n)-u(n-100)];
x2_n=u(n)-u(n-7);
X1_r=fft(x1_n);
X2_r=fft(x2_n);
Y1_r=X1_r*X2_r;
y1_n=ifft(Y1_r);
stem(r,Y1_r,'k');
figure;
stem(n,y1_n,'k')...
I have tried a couple ways and am not truthfully understanding what I am doing. I need to compute the linear and circular convolution (FFT 128 point) of
x1[n]=(0.9)^n*(u[n]-u[n-100]);
x2[n]=u[n]-u[n-7];
please explain, I really like to understand what I am doing and the reasoning behind it
Thanks
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