This paper deals with the problem of robust H∞ control for uncertain state-delayed systems containing sector non-linearity. The parameter uncertainties are assumed to be time varying and unknown but norm bounded. Based on the linear matrix inequality (LMI) approach, both delay-independent and delay-dependent techniques for designing memoryless state feedback controllers are proposed to stabilize the delay system, and to reduce the effect of the disturbance input on the controlled output to a prescribed level for all admissible uncertainties. Numerical examples are employed to illustrate the results.
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