Plotting turbulent energy spectra in Matlab
Hi guys,
I have one dimensional velocity component stored in a matrix over time. (The different rows represent velocity over different time.) If I want to plot the turbulent energy spectra from here in Matlab, how do I go about it? 
Have you tried the psd functions in MATLAB. I guess there is also a p.welsh command that you can use.

Aroon,
Thanks for your reply.. I have been trying to first use fft to change the velocity into wavenumber space. Once I have done this, am trying to apply the pwelch function, but I seem to be getting a garbage plot.Nothing that looks like 5/3, but more like random noise. 
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