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Thread Subject: LMSE code for frequency response modeling

Subject: LMSE code for frequency response modeling

From: Abigail D

Date: 24 Apr, 2007 05:46:33

Message: 1 of 2

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Hi all,

I'm working on identifying a transfer function model from the
experimental frequency response data. Precisely, the data [F, Vin,
Vout, Phase].

I estimate a model initially using hand and then aim is to reduce the
error between the modelled and experimental data for the
corresponding frequency. i.e. minimizing the error between
magnitude and phase data.

For this purpose, I need to write an Matlab code for LMSE algorithm.
As far as I see, there is no direct MATLAB code for frequency
response modeling. Mostly it is for equations and time domain
modeling.

Can anyone help me in writing a Matlab code for the same. It will be
of great help. I need very badly for my work ASAP.

Any help is highly appreciated. Thanks in advance.

Abigail

Subject: LMSE code for frequency response modeling

From: Ken Davis

Date: 24 Apr, 2007 06:41:33

Message: 2 of 2

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"Abigail D" <abcdbba@gmail.com> wrote in message
news:ef54bd6.-1@webcrossing.raydaftYaTP...
> Hi all,
>
> I'm working on identifying a transfer function model from the
> experimental frequency response data. Precisely, the data [F, Vin,
> Vout, Phase].
>
> I estimate a model initially using hand and then aim is to reduce the
> error between the modelled and experimental data for the
> corresponding frequency. i.e. minimizing the error between
> magnitude and phase data.
>
> For this purpose, I need to write an Matlab code for LMSE algorithm.
> As far as I see, there is no direct MATLAB code for frequency
> response modeling. Mostly it is for equations and time domain
> modeling.
>
> Can anyone help me in writing a Matlab code for the same. It will be
> of great help. I need very badly for my work ASAP.
>
> Any help is highly appreciated. Thanks in advance.
>
> Abigail

look at invfreqs in the signal processing toolbox.

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