System identification using labwindows?

Hello,
I have some linear models to test and need to identify the parameters using estimation algorithms like arx, armax, oe. I am doing that now with an old version of Matlab (2002!!) but since all my other programs run in LabWindows CVI (8.5.1), I would like t know if there is something like a system identification toolkit but not for Labview but for Labwindows! or some library that I can add... any ideas?
Thanks, Kristel

kristel wrote:
I have some linear models to test and need to identify the parameters using estimation algorithms like arx, armax, oe. I am doing that now with an old version of Matlab (2002!!) but since all my other programs run in LabWindows CVI (8.5.1), I would like t know if there is something like a system identification toolkit but not for Labview but for Labwindows! or some library that I can add... any ideas?
The best versions of Matlab are the old ones, they don't cost so much
You really need to be looking for a system identification library written in C. I was a little surprised, when I had a quick trawl, that I couldn't find one so easily. The only toolkits that come up on Google searches seem to be the Matlab and LabVIEW ones. There's stuff like the Numerical Recipes implementations for estimation, that give you the building blocks, but you'd still need to be referencing Astrom, Goodwin & Payne, or another reference to complete the implementation.
I'd be interested to know why you would really want to implement in C. Most system identification is offline, and which tool you use - C, Matlab, LabVIEW - is really immaterial.
Martin
Certified CVI Developer

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