Automatica, Vol.35, No.6, 1149-1154, 1999
Robust stability and stabilization of linear delayed systems with structured uncertainty
This paper shows criteria for robust stability and stabilization of linear state-delayed systems with structured uncertainty. We consider the structured uncertainty composed of repeated scalar-block and full-block forms and a time-varying state delay. Delay-dependent methods for robust stability and stabilization are provided in terms of linear matrix inequalities. For linear systems with structured uncertainty and a time-varying state delay, the proposed methods give less conservative results than those obtained via the methods accounting for only norm-boundedness of the uncertainty.
Keywords:structured uncertainty;robust stability;robust stabilization;time-varying delay;linear matrix inequality