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March 27, 2013 at 16:59
#574
Aleksei
Keymaster
You may estimate the fractional-order transfer function by first creating a fidata() data structure from your y, u, and t vectors, containing output, input, and time instance values, respectively. Next, you could use either the graphical interface fotfid (more convenient) or the fid() function.
It should also be possible, depending on the input/output time series data, to arrive at the frequency-domain representation of the system characteristics, but at the moment there are no tools in FOMCON that would do the conversion for you.