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An approach to design semi-global finite-time observers for a class of nonlinear systems

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Abstract

In this paper, the problem of designing semi-global finite-time observers for a class of nonlinear systems is investigated. Based on the theories of finite-time stability, an approach to designing semi-global finite-time observers for the nonlinear systems is presented. It has been shown that, after the finite time, the designed finite-time observer realizes the accurate reconstruction of the states of the nonlinear system. A numerical example is given to illustrate the effectiveness and validity of the method.

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Authors and Affiliations

  1. College of Science, China Three Gorges University, Yichang, 443002, China

    XiuCheng Deng & YanJun Shen

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  1. XiuCheng Deng
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  2. YanJun Shen
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Corresponding author

Correspondence to XiuCheng Deng.

Additional information

Supported by the National Natural Science Foundation of China (Grant No. 50779029), the Natural Science Foundation of Hubei Province (Grant No. 2008CDZ046), the Scientific Innovation Team Project of Hubei Provincial Department of Education (Grant No. T200809) and the Science Foundation of Education Commission of Hubei Province (Grant No. D20091305)

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Deng, X., Shen, Y. An approach to design semi-global finite-time observers for a class of nonlinear systems. Sci. China Ser. F-Inf. Sci. 52, 1746–1753 (2009). https://doi.org/10.1007/s11432-009-0170-1

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  • DOI: https://doi.org/10.1007/s11432-009-0170-1

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