Curve Fitting a Transfer Function
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I have a transfer function in the frequency domain and I am looking to curve fit it into a numerator and a denominator for a system. Is there a specific function that I can use to do so if there are both poles and zeros in the transfer function? I have the standard student version toolboxes as well as the system ID toolboxes.
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Sebastian Castro
on 14 Jul 2015
In System Identification Toolbox, there is a "tfest" function. Notice that one way to call it is by specifying the data, as well as the number of poles (np) and zeros (nz):
>> sys = tfest(data,np,nz)
- Sebastian
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