07-06-2009 02:50 PM
There is a convenient "SI Convert to Transfer Function of CDT.vi" in the system identification toolkit, but is there a VI to go in the other direction? I have used the system id tools to estimate the TF of my system, but I would like to compare it to basic first order system response to my real stimulus data.
I can build a first order TF using the "CD create 1st order model.vi" but I don't know how to then turn this into a continuous system model into which I can plug in my real data.
I am able to construct a system model using the "SI create system model.vi" but it is a polynomial model, if there is a way to coax this into the form of a basic 1st order exponential, that would be a great solution as well.
(I'm experienced with LV, but my control theory is rusty and I'm totally new to the CD and SI modules - so I apologize if this is a silly question)
Solved! Go to Solution.
07-06-2009 08:30 PM
Hi,
You can use SI Create Partially Known Continuous Transfer Function Model (1st Order).vi and SI Estimate Partially Known Continuous Transfer Function Model (1st Order SISO).vi to estimate a 1st Order TF, in which the parameters are defined as in CD create 1st Order Model.vi
07-07-2009 09:56 AM