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Article Dans Une Revue IET Control Theory and Applications Année : 2018

Stabilisation of discrete-time systems with finite-level uniform and logarithmic quantisers

Résumé

This study deals with the stabilisation of discrete-time linear systems subject to static finite-level quantisation on the control inputs. Two kinds of quantisers are considered: uniform and logarithmic. The modelling of the finite-level quantisation is obtained by the application of deadzone and saturation maps to an infinite-level quantiser. From this model, conditions for the synthesis of state feedback control laws guaranteeing the convergence of the trajectories to an attractor around the origin provided that the initial state belongs to a certain admissible set are proposed. These conditions can thus be incorporated in linear matrix inequality-based optimisation schemes to compute the stabilising gain while minimising the size of the attractor.
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Dates et versions

hal-01856229 , version 1 (10-08-2018)

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Gustavo Cruz Campos, João Manoel Gomes da Silva Jr, Sophie Tarbouriech, Carlos Eduardo Pereira. Stabilisation of discrete-time systems with finite-level uniform and logarithmic quantisers. IET Control Theory and Applications, 2018, 12 (8), pp.1125 - 1132. ⟨10.1049/iet-cta.2017.1092⟩. ⟨hal-01856229⟩
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