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The problem of infinite-horizon H∞ state-feedback tracking for linear continuous time-invariant retarded systems with stochastic parameter uncertainties is investigated. We consider the case where the reference signal is previewed in a fixed time-interval ahead. The stochastic uncertainties appear in the dynamics matrices for both the retarded and the non retarded states of the system. The delayed...
The objective of this paper is to propose an approach to decentralized resilient networked robustly exponentially stabilizing with H∞-norm bound γ observer-based controller for a class of uncertain symmetric composite continuous-time systems with nonlinearities. Such systems are composed of identical nominal subsystems, symmetric nominal interconnections, norm-bounded parameter uncertainties, and...
In this paper, a robust stability criterion is proposed for NCSs liable to model uncertainties and time-varying delays. The analysis concerns the establishment of a maximum allowable delay bound for continous time NCSs under parameter uncertainties. The new proposed criterion is based on the solution of a set of linear matrix inequalities (LMIs). Numerical examples are given to validate the theoretical...
In this paper, a robust control strategy for uncertain nonlinear continuous-time plants with disturbances and state delays is proposed. The strategy is based on the uncertainty and disturbance estimator (UDE). Both cases with known and unknown delay are considered. In the case of an unknown time delay, the term with the delay is treated as an additional disturbance to the system. Both nonlinear and...
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