A Set of Observers for a Class of Nonlinear Systems
| Authors: | Farza Mondher, GREYC (UMR 6072), Université de Caen, ENSICAEN, France
M'Saad Mohammed, GREYC (UMR 6072), Université de Caen, ENSICAEN, France
Sekher Malik, GREYC (UMR 6072), Université de Caen, ENSICAEN, France |
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| Topic: | 2.3 Non-Linear Control Systems |
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| Session: | Nonlinear Observers and Output Feedback |
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| Keywords: | Nonlinear system, Nonlinear observer, High gain observer, sliding mode observer. |
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Abstract
A state observer is proposed for a class of multi-output nonlinearsystems. The gain of this observer involves a design function thathas to satisfy some mild conditions which are given. Differentexpressions of such a function are proposed. Of particularinterest, it is shown that high gain observers and sliding modelike observers can be derived by considering particularexpressions of the design function. A simulation example is givenin order to compare the performance of a high gain observer and asliding mode like observer obtained through two different choicesof the design function.
