A robust limited-information feedback for a class of uncertain nonlinear systems

Alessio Franci (1) , Antoine Chaillet (1)

1 L2S - Laboratoire des signaux et systèmes

We propose a variant of the recently introduced strategy for stabilization with limited information recently introduced in (Liberzon and Hespanha, 2005) and analyze its robustness properties. We show that, if the nominal plant can be made Input-to-State Stable (ISS) with respect to measurement errors, parameter uncertainty and exogenous disturbances, then this robustness is preserved with this quantized feedback. More precisely, if a sufficient bandwidth is available on the communication network, then the resulting closed-loop is shown to be semiglobally Input-to-State practically Stable (ISpS).

Mots clés: Limited-information feedback; robustness; nonlinear systems

Domaines: Automatique / Robotique

Alessio Franci, Antoine Chaillet. A robust limited-information feedback for a class of uncertain nonlinear systems. 7th Int. Conf. on Informatics in Control, Automation and Robotics, Jun 2010, Madeira, Portugal. pp.1-6. ⟨hal-00546730⟩