Unknown Inputs Observer for a Class of Nonlinear Uncertain Systems: An LMI Approach

Kamel Mohamed Mohammed Chadli Mohamed Chaabane

Kamel Mohamed, Mohammed Chadli, Mohamed Chaabane. Unknown Inputs Observer for a Class of Nonlinear Uncertain Systems: An LMI Approach[J]. 国际自动化与计算杂志(英)/International Journal of Automation and Computing, 2012, 9(3): 331-336. doi: 10.1007/s11633-012-0652-2
引用本文: Kamel Mohamed, Mohammed Chadli, Mohamed Chaabane. Unknown Inputs Observer for a Class of Nonlinear Uncertain Systems: An LMI Approach[J]. 国际自动化与计算杂志(英)/International Journal of Automation and Computing, 2012, 9(3): 331-336. doi: 10.1007/s11633-012-0652-2
Kamel Mohamed, Mohammed Chadli and Mohamed Chaabane. Unknown Inputs Observer for a Class of Nonlinear Uncertain Systems: An LMI Approach. International Journal of Automation and Computing, vol. 9, no. 3, pp. 331-336, 2012 doi:  10.1007/s11633-012-0652-2
Citation: Kamel Mohamed, Mohammed Chadli and Mohamed Chaabane. Unknown Inputs Observer for a Class of Nonlinear Uncertain Systems: An LMI Approach. International Journal of Automation and Computing, vol. 9, no. 3, pp. 331-336, 2012 doi:  10.1007/s11633-012-0652-2

Unknown Inputs Observer for a Class of Nonlinear Uncertain Systems: An LMI Approach

doi: 10.1007/s11633-012-0652-2

Unknown Inputs Observer for a Class of Nonlinear Uncertain Systems: An LMI Approach

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    Corresponding author: Mohammed Chadli
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出版历程
  • 收稿日期:  2011-04-13
  • 修回日期:  2011-05-26
  • 刊出日期:  2012-06-20

Unknown Inputs Observer for a Class of Nonlinear Uncertain Systems: An LMI Approach

doi: 10.1007/s11633-012-0652-2

摘要: This paper deals with the simultaneous estimation of states and unknown inputs for a class of Lipschitz nonlinear systems using only the measured outputs. The system is assumed to have bounded uncertainties that appear on both the state and output matrices. The observer design problem is formulated as a set of linear constraints which can be easily solved using linear matrix inequalities (LMI) technique. An application based on manipulator arm actuated by a direct current (DC) motor is presented to evaluate the performance of the proposed observer. The observer is applied to estimate both state and faults.

English Abstract

Kamel Mohamed, Mohammed Chadli, Mohamed Chaabane. Unknown Inputs Observer for a Class of Nonlinear Uncertain Systems: An LMI Approach[J]. 国际自动化与计算杂志(英)/International Journal of Automation and Computing, 2012, 9(3): 331-336. doi: 10.1007/s11633-012-0652-2
引用本文: Kamel Mohamed, Mohammed Chadli, Mohamed Chaabane. Unknown Inputs Observer for a Class of Nonlinear Uncertain Systems: An LMI Approach[J]. 国际自动化与计算杂志(英)/International Journal of Automation and Computing, 2012, 9(3): 331-336. doi: 10.1007/s11633-012-0652-2
Kamel Mohamed, Mohammed Chadli and Mohamed Chaabane. Unknown Inputs Observer for a Class of Nonlinear Uncertain Systems: An LMI Approach. International Journal of Automation and Computing, vol. 9, no. 3, pp. 331-336, 2012 doi:  10.1007/s11633-012-0652-2
Citation: Kamel Mohamed, Mohammed Chadli and Mohamed Chaabane. Unknown Inputs Observer for a Class of Nonlinear Uncertain Systems: An LMI Approach. International Journal of Automation and Computing, vol. 9, no. 3, pp. 331-336, 2012 doi:  10.1007/s11633-012-0652-2
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