Optimization of transfer function

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ravi teja
ravi teja on 21 Feb 2022
Commented: ravi teja on 21 Feb 2022
This is my transfer function
y = (2*C_p*s + G_p*R_w + C_p*R_w*s)/(2*C_p*s) - ((R_w/2 + (L*(2*C_p*s + G_p*R_w + C_p*R_w*s))/(2*C_p*(C*L*s^2 + G*L*s + 1)))*(G1_p + C1_p*s))/(C1_p*s)
I need to optimise this function with the data.
I have Data in Freq vs magnitude and freq vs phase
it would be helpful if some one can help me on how it can be done
  2 Comments
Walter Roberson
Walter Roberson on 21 Feb 2022
What do you mean by "optimize" for this purpose?
ravi teja
ravi teja on 21 Feb 2022
I need to find R_w L C G C_p G_p C1_p G1_p these parameter values using least square or genetic optimization method

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Answers (1)

Sulaymon Eshkabilov
Sulaymon Eshkabilov on 21 Feb 2022
Hi,
There are two realtively easy ways to obtain those parameters' estimate values.
(1) Using system identification toolbox fcns: upload your data to the toolbox and specificy your TF order
(2) The inverse frequency response: using invfreqs().
  1 Comment
ravi teja
ravi teja on 21 Feb 2022
Thank you for your answer.
But i am trying to do it as a matlab code not using solvers.

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