State coordinate transformation for state-space model
sysT = ss2ss(sys,T)
Given a state-space model
sys with equations
or the innovations form used by the identified state-space (IDSS) models:
(or their discrete-time counterpart),
the similarity transformation on
the state vector x and produces the equivalent
sysT with equations.
or, in the case of an IDSS model:
(IDSS models require System Identification Toolbox™ software.)
sysT = ss2ss(sys,T) returns
the transformed state-space model
the state coordinate transformation
T. The model
be in state-space form and the matrix
T must be
ss2ss is applicable to both continuous-
and discrete-time models.
Perform a similarity transform to improve the conditioning of the A matrix.
[T,~] = balance(sys.A) sysb = ss2ss(sys,inv(T))