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MATLAB (MATrix LABoratory) is a numerical computing environment and a fourth-generation programming language. Use this tag with care.. see excerpt.

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Converting signal to frequency domain then back to time domain - noise issue

With my matlab code, it works fine when there is no noise but there is a weird behaviour when noise is introduced in to the signal. … I understand matlab has the ifft function available already, but I am not sure how to get it to work with the absolute power P1 of the frequency response. …
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