Hello Sergie,
Thanks for information.
I did respond to you in the other thread ("I have both magnitude and phase
data."). It just got lost in all the replies. Also, I started a new thread
because I was asking a different question.
I got stuck on getting a transfer function that matched the frequency
response data, so I moved on to trying to get a transfer function using an
average model of the the Half bridge inverter. I think I successfully came
up with the correct transfer equation using the average model.
I would still like to be able to come up with the equation using the
transfer function data.
I looked at ifft and it needs to have an iddata objects. I think iddata
needs to be used to get the iddata objects, but iddata doesn't take
frequency response data.
A while back I unsuccessfully tried to get the transfer equation for a buck
converter from frequency response data. I posted that question in the
following thread:
https://octave.1599824.n4.nabble.com/Control-System-Design-methods-using-Octave-tc4685799.html).
Doug was very helpful and I think the transfer equation was close but not
close enough.
Stephen
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