Problem in AWGN command

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Sadiq Akbar
Sadiq Akbar 2021-5-21
评论： Sadiq Akbar 2021-5-21
I have two matrices A and xx.. The dimension of the matrix A is 9 x 3 complex double and that of xx is 3 x 500 complex double. The product of A and xx is X1 whose dimesnion is 9 x 500 complex double.
Now I want to generate a noise matrix of the same dimension i.e., 9 x 500 complex double using the command awgn() and add to X1. How can we generate this noise?

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Image Analyst
Image Analyst 2021-5-21
I'd use it twice. Once to apply to the real part, and again to apply to the imaginary part.
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Image Analyst
Image Analyst 2021-5-21
Try it. I'd do
X = awgn(X1, 40) + 1i * awgn(X1, 40);
Sadiq Akbar
Sadiq Akbar 2021-5-21
Thank you very much for your help.

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