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

Kamel Mohamed; Mohammed Chadli; Mohamed Chaabane

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

1.
Industrial Process Control Unit, National Engineering School of Sfax, Tunisia;
2.
University of Picardie Jules Verne, MIS (EA 4290). 7 rue Moulin Neuf, 80000 Amiens, France

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

1.
Industrial Process Control Unit, National Engineering School of Sfax, Tunisia;
2.
University of Picardie Jules Verne, MIS (EA 4290). 7 rue Moulin Neuf, 80000 Amiens, France

More Information

Corresponding author: Mohammed Chadli

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.
- Unknown inputs observer /
- uncertain nonlinear systems /
- Lipschitz condition /
- bounded uncertainties /
- linear matrix inequality (LMI)
Abstract: 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.
- Unknown inputs observer /
- uncertain nonlinear systems /
- Lipschitz condition /
- bounded uncertainties /
- linear matrix inequality (LMI)

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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

Corresponding author: Mohammed Chadli

计量

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

doi: 10.1007/s11633-012-0652-2

1. Industrial Process Control Unit, National Engineering School of Sfax, Tunisia;

2. University of Picardie Jules Verne, MIS (EA 4290). 7 rue Moulin Neuf, 80000 Amiens, France

English Abstract

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

1. Industrial Process Control Unit, National Engineering School of Sfax, Tunisia;

2. University of Picardie Jules Verne, MIS (EA 4290). 7 rue Moulin Neuf, 80000 Amiens, France

Corresponding author: Mohammed Chadli

全文HTML

目录

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

Corresponding author: Mohammed Chadli

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出版历程

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

doi: 10.1007/s11633-012-0652-2

1. Industrial Process Control Unit, National Engineering School of Sfax, Tunisia; 2. University of Picardie Jules Verne, MIS (EA 4290). 7 rue Moulin Neuf, 80000 Amiens, France

English Abstract

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

1. Industrial Process Control Unit, National Engineering School of Sfax, Tunisia; 2. University of Picardie Jules Verne, MIS (EA 4290). 7 rue Moulin Neuf, 80000 Amiens, France

Corresponding author: Mohammed Chadli

全文HTML

目录

1. Industrial Process Control Unit, National Engineering School of Sfax, Tunisia;

2. University of Picardie Jules Verne, MIS (EA 4290). 7 rue Moulin Neuf, 80000 Amiens, France

1. Industrial Process Control Unit, National Engineering School of Sfax, Tunisia;

2. University of Picardie Jules Verne, MIS (EA 4290). 7 rue Moulin Neuf, 80000 Amiens, France