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Output Stabilization via Nonlinear Luenberger Observers

Abstract : The present paper addresses the problem of the existence of an (output) feedback law that asymptotically steers to zero prescribed outputs, while keeping all state variables bounded, for any initial conditions in a given compact set. The problem can be viewed as an extension of the classical problem of semiglobally stabilizing the trajectories of a controlled system to a compact set. The problem also encompasses a version of the classical problem of output regulation. Under only a weak minimum phase assumption, it is shown that there exists a controller solving the problem at hand. The paper is deliberately focused on theoretical results regarding the existence of such a controller. Practical aspects involving the design and the implementation of the controller are left to a forthcoming work.
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Lorenzo Marconi, Laurent Praly, Alberto Isidori. Output Stabilization via Nonlinear Luenberger Observers. SIAM Journal on Control and Optimization, Society for Industrial and Applied Mathematics, 2007, 45 (6), pp.2277-2298. ⟨10.1137/050642344⟩. ⟨hal-00449349⟩



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