how to use fourier transform to analyze time series data?

I have an time series signal.I want to calculate first,second,third harmonic curves according to the following research paper, using fourier transform.how to do it?please help me.thanks!

Respuestas (1)

Henric Rydén
Henric Rydén el 19 de Mayo de 2014
Editada: Henric Rydén el 21 de Mayo de 2014
Hi,
your question is not very clear but look up the fft command

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el 19 de Mayo de 2014

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