Output controllability of switched linear systems

In this paper, the output controllability of switched linear systems is studied. The main contribution of this paper is necessary and sufficient geometric type criterion for output controllability of switched linear systems is presented. Furthermore, it is shown that if the system is output controllable, then there exists a basic switching sequence such that the output controllability can be realized by this switching sequence. Finally, all the above results are extended to switched linear systems with time-delays in control.