working with transfer function, overflow error
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I am working with a transfer function that modelates a MIMO system of 15 inputs and 15 outputs. I have to perform the following operation:
H2=H/(A*H+B);
where H is the transfer function of the original system, A and B are scalar matrix of dimensions 15x15 and H2 is the transfer function that I want to obtain.
I have tried the command:
Hin=A*H+B;
H2=H/Hin;
but I obtain the following message: 'Unable to convert the model to a transfer function because of overflow'
Thanks in advance.
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Answers (1)
Jamie
on 5 Aug 2013
Edited: Jamie
on 5 Aug 2013
Hi upna,
I note this post is rather old. I trust you've long since resolved the issue. In the off-chance.. in this situation I would usually look to obtain a minimal realisation with a suitable tolerance prior to the manipulation of H
i.e.
> minreal(H,tolerance)
In general, numeric LTI models are not ideal where accuracy is concerned. If poss a ss approach would be preferable
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