MATLAB: How to get frequency resolution from bode plot or transfer function

frequency resolutionsystem identification

I want to know the frequency resolution from bode plot I estimate by using system identification toolbox. But how?

Best Answer

You have to ask it to return them as outputs:
[mag,phase,wout] = bode(sys)
In this example, ‘wout’ are, from the documentation:
  • Response frequencies, returned as a row vector of frequency points. Frequency values are in radians per TimeUnit, where TimeUnit is the value of the TimeUnit property of sys.
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