, Cette construction a été réalisée en nous basant sur le résultat portant sur le graphe d'uniforme observabilité introduit dans, 2002.

, Une immersion de cette forme est alors proposée, permettant par la suite de synthétiser, à partir cette immersion, un observateur grand gain dont l'erreur d'observation converge exponentiellement vers zéro en l'absence d'incertitude, et converge dans une boule de rayon 1/? en présence d'incertitude. La synthèse grand gain réalisée a été rendue possible en, Plus précisément, en reprenant la définition donnée par (Bornard et Hammouri, 2002.

, Ces différentes contributions ont été illustrées par un ensemble d'exemples provenant de plusieurs horizons (système hydraulique, bioréacteur, oscillateur forcé de Van Der Pol, bras de robot)

, Chaque contribution présentée dans ce document offre cependant de nombreuses perspectives de travail, dont certaines seront présentées dans ce qui suit : ? Le travail effectué dans le chapitre 3 sur la disponibilité des mesures de sortie vise à être généralisé à une classe de systèmes non linéaires MIMO uniformément observables plus générale

. Astolfi, invite à revisiter l'observateur grand gain en s'affranchissant de ses principales limites. En particulier, nous envisageons de synthétiser un observateur grand gain filtré saturé permettant, en plus des propriétés de l'observateur grand gain filtré, de supprimer le phénomène de 'pick'. D'autre part, il semblerait, ? La synthèse de l'observateur grand gain filtré établie dans le chapitre 4, à l'instar de ce qui a été proposé dans, 2015.

?. La, observabilité uniforme présenté dans le chapitre 5 n'étant pas une forme canonique, il reste éventuellement à généraliser cette forme normale dans le but d'englober l'ensemble des systèmes non linéaires uniformément observables, afin de rendre possible une synthèse grand gain sur l'ensemble des systèmes non linéaires 157

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