Linear systems subject to input saturation an time delay Global asymptotic and L-P-stabilization

Abstract : This Note deals with two problems on stabilization of linear systems by static feedbacks which are bounded and time-delayed, namely global asymptotic stabilization and finite gain L-p-stabilization, p is an element of [1, infinity]. Regarding the first issue, we provide, under standard necessary conditions, two types of solutions for arbitrary small bound on the control and large (constant) delay. The first solution is based on the knowledge of a static stabilizing feedback in the zero-delay case and the second solution is of nested saturation type, which extends results of Mazenc et al. [IEEE Trans. Automat. Contr. 48 (1) (2003) 57-63]. For the finite-gain L-P-stabilization issue, we assume that the system is neutrally stable. We show the existence of a linear feedback such that, for arbitrary small bound on the control and large (constant) delay, finite gain U-stability holds with respect to every L-p-norm, p is an element of [1, infinity]. Moreover, the corresponding LP-gain is delay-independent. (c) 2005 Academie des sciences. Published by Elsevier SAS. All rights reserved.
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Karim Yakoubi, Yacine Chitour. Linear systems subject to input saturation an time delay Global asymptotic and L-P-stabilization. Comptes Rendus Mathématique, Elsevier Masson, 2005, 340 (9), pp.703-708. ⟨10.1016/j.crma.2005.03.010⟩. ⟨hal-02320785⟩

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