Hi Joris,
Unless I am missing something, it sounds like what you are trying to do is a perfect example to use the System Identification App.
This is a graphical user interface that will let you:
- Import measured data
- Fit a model (transfer function, state space, etc.) to your data
- Tune the parameters of your fit
- Plot the response of your fitted model against your measured data
The link I copied above from our documentation contains many examples, including how to fit transfer functions and state-space models for linear systems.
I hope this helps.
Sebastian
