摘要

L-2-gain analysis is used to characterise conditions under which an uncertain switched system is uniformly quadratically stable (UQS) with an L-2-gain smaller than a constant gamma. The control synthesis is to design switched-state feedback and switched output feedback controllers, guaranteeing that the corresponding closed-loop system is UQS with an L-2-gain smaller than a constant gamma. All the results are expressed in terms of linear matrix inequalities, which can be easily tested with efficient algorithms.