Right normalized coprime factorization
computes
the right normalized coprime factorization of the dynamic system model
fact
= rncf(sys
)sys
. The factorization is given by:
Here, denotes the conjugate of Mr (see
ctranspose
).
The returned model fact
is a minimal state-space realization of the
stable system
[Mr;Nr].
This factorization is used in other normalized coprime factor computations such as model
reduction (ncfmr
) and controller synthesis (ncfsyn
).
fact
is a minimal realization of [Mr;Nr]
. If
you need to use [Mr;Nr]
or [Mr;Nr]'
in a
computation, it is better to use fact
than to concatenate the factors
yourself. Such manual concatenation results in extra (nonminimal) states, which can lead
to decreased numerical accuracy.