User`s guide

Arithmetic Operations
3-15
You can use pertransposition to obtain the Hermitian (conjugate) transpose of
the frequency response of a given system. The frequency response of the
pertranspose of , , is the Hermitian transpose of the
frequency response of : .
To obtain the Hermitian transpose of the frequency response of a system
sys
over a f requency range specified by the vector w,type
freqresp(sys', w);
Operations on State-Space Models with Delays
When you apply operations such as +,*,\,/,[], to state-space models, all or
part of the I/O delay matrix of the resulting model is absorbed into the input
and output delay vectors when it is possible to reduce the total number of I/O
delays. The resulting model has a minimum number of such delays.
Hs()Gs() Hs–()[]
T
=
Hs()Gjw() Hjw()
H
=