FFT in Matlab and computation of mean frequency

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cyberdyne
cyberdyne 2011-9-16
Hi,
I've a .mat file within a signal sampled at 1000Hz. I need an algorithm that visualizes the spectrum and returns mean frequency.
The mean frequency is this: http://luscinia.sourceforge.net/page26/page35/page35.html
I tried to do the fft but I don't understand how to continue and get components amplitude and their frequency for mean frequency computation.
Thanks

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回答（1 个）

Rick Rosson
Rick Rosson 2011-9-17
Please try searching MATLAB Answers. This question has been asked and answered multiple times:
Search MATLAB Answers for questions tagged with FFT
HTH.
Best,
Rick

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