How to find the equivalent transfer function(poles and zeros) having the Body diagram ?

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Juster 2012-7-19

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https://ww2.mathworks.cn/matlabcentral/answers/44058-how-to-find-the-equivalent-transfer-function-poles-and-zeros-having-the-body-diagram

Hello everyone,

I have an Excel file where there are the datas expressed with frequency and gain steps, therefore a body diagram.

After having plotted it on Excel, they have a 'high pass' behaviour, so I would find the equivalent poles and zeros(and transfer function) with Matlab giving it the Excel datas.

Can you help me?

Thanks in advance.

Regards.

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Juster 2012-7-20

Any answer?

Thanks

Ryan 2012-7-20

Determining the transfer function from the bode plots of the frequency response is a theory question in my opinion and not Matlab related. This should help you get started either way: http://www.ece.utah.edu/~ee3110/bodeplot.pdf

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