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I have discrete data of a signal but I do not know the periods of the signal.

The signal is like a "beat" I guess, but not really sure.

I plan to use fft in matlab to get it's frequency spectrum and get the 0Hz value as the average of the signal.

Is this a bad idea?

Any other ways to do this?

Thanks.

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# Finding an average of a signal using Fast Fourier Transform?

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