Open loop transfer function from bode plot response

Hi, I have magnitude and phase response values . I want to know transfer function from these two. I request any Matlab code for this. Regards Srinivasu.

Answer 1

[Star Strider]

First use the iddata function, then the tfest function.

You will need the System Identification Toolbox to use these functions.

The Signal Processing Toolbox has limited system identification capabilities. See the documentation for invfreqz and related functions.