b-optimal reduced-order output feedback control
which the controller can be implemented by computer
in decentralized singularly-perturbed systems. The
result not only provides an advanced control algorithm
but also decreases the cost of the system. Furthermore,
the system can be also stabilized through these
controllers; observers are not needed when state
variables are not available for measurement. The
controllers can be implemented by computers is also a
great advantage to deal with a large-scale systems that
is a lot complicated in control scheme.