Simulating linear systems with nonuniform time vector
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Paolo Rapisarda
on 28 Jun 2022
Commented: Paolo Rapisarda
on 28 Jun 2022
Hello,
I want to simulate a state-space model (A,B,C,D) of the kind generated by the ss command in the Control Toolbox, but with a non-uniformly spaced time vector. The lsim command does not work, since it requires evenly spaced time samples.
Would you be able to suggest a way of generating state- and output values for this case?
Thank you in advance!
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Accepted Answer
Sam Chak
on 28 Jun 2022
I think you can possibly use the 1-D data interpolation technique, interp1() function at certain intervals of the query time points. For example
xq = interp1(t, x, tq, 'cubic')
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