On dynamic feedback linearization of four-dimensional affine control systems with two inputs
Jean-Baptiste Pomet (1997)
ESAIM: Control, Optimisation and Calculus of Variations
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Jean-Baptiste Pomet (1997)
ESAIM: Control, Optimisation and Calculus of Variations
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M. Balde, P. Jouan (1998)
ESAIM: Control, Optimisation and Calculus of Variations
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Jean-François Couchouron, P. Ligarius (2003)
ESAIM: Control, Optimisation and Calculus of Variations
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On an arbitrary reflexive Banach space, we build asymptotic observers for an abstract class of nonlinear control systems with possible compact outputs. An important part of this paper is devoted to various examples, where we discuss the existence of persistent inputs which make the system observable. These results make a wide generalization to a nonlinear framework of previous works on the observation problem in infinite dimension (see [11, 18, 22, 26, 27, 38, 40] and other references...
Yazdani, Esfandiar Nava (2007)
Documenta Mathematica
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Andrew R. Teel (1996)
ESAIM: Control, Optimisation and Calculus of Variations
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Hassan Hammouri, M. Farza (2003)
ESAIM: Control, Optimisation and Calculus of Variations
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This paper deals with the observability analysis and the observer synthesis of a class of nonlinear systems. In the single output case, it is known [4, 5, 6] that systems which are observable independently of the inputs, admit an observable canonical form. These systems are called uniformly observable systems. Moreover, a high gain observer for these systems can be designed on the basis of this canonical form. In this paper, we extend the above results to multi-output uniformly observable...
Emmanuel Trélat (2001)
ESAIM: Control, Optimisation and Calculus of Variations
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We describe precisely, under generic conditions, the contact of the accessibility set at time with an abnormal direction, first for a single-input affine control system with constraint on the control, and then as an application for a sub-riemannian system of rank 2. As a consequence we obtain in sub-riemannian geometry a new splitting-up of the sphere near an abnormal minimizer into two sectors, bordered by the first Pontryagin’s cone along , called the -sector and the -sector....