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Imported Data in time domain to frequency domain

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Joseph
Joseph 2011-3-14
关闭： MATLAB Answer Bot 2021-8-20
Hi,
I have some data of a cars response that I'd like to show in the frequency domain instead of the time, I think this would be done with the fft function but I am unsure exactly how. Its sample rate is 200Hz. I'd like to be able to show it in terms of Hz not of a normalized frequency. I am fairly new to the matlab experience so if it could be explained in simple terms I would be hugely grateful.

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Laura Proctor
Laura Proctor 2011-3-14
The documentation for FFT has a good example of how to plot the FFT versus frequency:
http://www.mathworks.com/access/helpdesk/help/techdoc/ref/fft.html

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