I just want to export a tf function as two columns of data.
Compare tf function with x-y data
2 views (last 30 days)
Show older comments
I have an ss function object and I want to plot the magnitude against frequency of the object (which I can view using ltiview) along side experimental data. The experimental data is in the form of frequency points in column 1 and magnitude points in column 2, is there some way I can get the ss object data in the same form so I can plot them on the same graph?
4 Comments
dpb
on 12 Aug 2013
Don't have the toolbox so all I can do is read the doc's. I'd presume like most other toolboxes they must be structures and you should be able to use normal Matlab structure addressing to return the data into arrays but that's guessing.
I'd suggest changing you tags to DSP Toolbox and perhaps 'toolbox objects' or somesuch; the rest you have are meaningless and unrelated to the problem space. As can be seen by my confusion, not everyone else will have the same background and be able to infer what abbreviations are...help the prospective responder from the git-go.
Answers (1)
Arkadiy Turevskiy
on 12 Aug 2013
Edited: Arkadiy Turevskiy
on 13 Aug 2013
If you have your frequency vector, w, and your ss object sys, then:
[mag,ph]=bode(sys,w);
so now you have your two columns, w and mag
See Also
Categories
Find more on Plot Customization in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!