ADAPTIVE ROBUST SAMPLED-DATA CONTROL OF A CLASS OF SYSTEMS UNDER STRUCTURED PERTURBATIONS

Robust adaptive sampled-data control of a class of linear systems unde r structured perturbations is considered. The controller is a time-var ying state-feedback law having a fixed structure, containing an adjust able parameter, and operating on sampled values. The sampling period a nd the controller parameter are adjusted with simple adaptation rules. The resulting closed-loop system is shown to be stable for a class of unknown perturbations. The same result is also shown to be applicable to decentralized control of interconnected system.