Abstract
In this paper, a sliding mode observer scheme of sensor fault diagnosis is proposed for a class of time delay nonlinear systems with input uncertainty based on neural network. The sensor fault and the system input uncertainty are assumed to be unknown but bounded. The radial basis function (RBF) neural network is used to approximate the sensor fault. Based on the output of the RBF neural network, the sliding mode observer is presented. Using the Lyapunov method, a criterion for stability is given in terms of matrix inequality. Finally, an example is given for illustrating the availability of the fault diagnosis based on the proposed sliding mode observer.
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This work was supported by Natural Science Foundation of Jiangsu Province (No. SBK20082815) and Aeronautical Science Foundation of China (No. 20075152014).
Mou Chen received the B. Sc. degree in material science and engineering at Nanjing University of Aeronautics & Astronautics, Nanjing, PRC, in 1998, the M. Sc. and the Ph.D. degrees in automatical control engineering at Nanjing University of Aeronautics & Astronautics, Nanjing, PRC, in 2004. He is currently an associate professor in Automation College at Nanjing University of Aeronautics & Astronautics, PRC.
His research interests include nonlinear control, artificial intelligence, imagine processing and pattern recognition, and flight control.
Chang-Sheng Jiang received his B. Sc. and M. Sc. degrees in automatic control engineering at Nanjing University of Aeronautics & Astronautics, Nanjing, PRC, in 1964 and 1968, respectively. He is currently a professor in Automation College at Nanjing University of Aeronautics & Astronautics, China.
His research interests include nonlinear control, artificial intelligence, imagine processing and pattern recognition, and flight control.
Qing-Xian Wu received his B. Sc. and M. Sc. degrees in automatical control engineering at Southeast University, PRC, in 1982 and 1985, respectively. He is currently a professor in Automation College at Nanjing University of Aeronautics & Astronautics, PRC.
His research interests include nonlinear control, artificial intelligence, imagine processing and pattern recognition, and flight control.
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Chen, M., Jiang, CS. & Wu, QX. Sensor fault diagnosis for a class of time delay uncertain nonlinear systems using neural network. Int. J. Autom. Comput. 5, 401–405 (2008). https://doi.org/10.1007/s11633-008-0401-8
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DOI: https://doi.org/10.1007/s11633-008-0401-8