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How can i create frequency and time domain from raw data

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This question was flagged by Bora Eryilmaz
How to create the time domain frequency domain ,fft from this raw data .Please include command or code for the solution thank you

Answers (1)

William Rose
William Rose on 31 Jan 2023
To plot the time domain data, use plot(). Read the help for plot() if you are unsure.
To plot the data in the frequency domain, learn about the Fourier transform, if you are not familiar with it, and read the help for fft(), and read the help for periodogram() and pwelch(). After you have computed the FFT or the power spectrum, use plot() to plot the frequency domain data.
I am attaching some notes I have written on this subject. The notes include examples with Matlab code.
Good luck with your work.

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