Commande par platitude de systèmes multi-entrées multi-sorties non stationnaires

ABSTRACT. This paper deals with a flatness-based control method of linear time-varying (LTV) multi-input multi-output (MIMO) system, developed in order to ensure the tracking of a reference trajectory. Polynomial two-degree-of-freedom controller can then be designed with the use of an exact observer and without resolving the generalized Bezout’s equation in LTV framework. The proposed approach is applied to nonlinear systems using its linearizations around given trajectories. The approach is illustrated with the control of the satellite SPOT-5.

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