LTI Commands - Apply Control System Toolbox commands to linear model
Syntax
append, augstate, balreal, canon, d2d, feedback, inv, minreal,
modred, norm, parallel, series, ss2ss
Description
When you have the Control System Toolbox product installed,
you can apply the listed LTI commands to idmodel objects,
including idarx, idgrey, idpoly,
and idss models. You can also use the overloaded
operations +, -, and *. The same operations are performed and the
result is delivered as an idmodel. The original
covariance information is lost most of the time, however.
Examples
You have two more or less identical processes connected in series.
Estimate a model for one of them, and use that to form an initial
estimate for a model of the connected process.
% data concerns one of the processes
m = pem(data)
% data2 is from the entire connected process
m2 = pem(data2,m*m)
 | linearize(idnlhw) | | merge (iddata) |  |
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