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So this is a continuation of the thread in this link:

https://stackoverflow.com/questions/33677430/simulink-implementation-of-fourier-transform-property-of-integration-and-differe#

I've made some progress (I think) and I now have this:

enter image description here

The output in scope1 is obviously incorrect, but I'm not sure what i have to edit to make it correct. The signal in the sign wave is 10pi. Anyone have any suggestions?

Community
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John
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1 Answers1

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I tried your model, and I think the problem is here: enter image description here

You have the real signal at sine. After using FFT you got complex signal with nonzero real part and zero imaginary part. And then you multiply it at imaginary number.

So after that you already have signal with zero real part. I didn't check further, but I think simulink works correct.

Mikhail_Sam
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