Observer-based adaptive fuzzy backstepping dynamic surface control for a class of MIMO nonlinear systems

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Shao-Cheng Tong
  • Yong-Ming Li
  • Gang Feng
  • Tie-Shan Li

Detail(s)

Original languageEnglish
Article number5711676
Pages (from-to)1124-1135
Journal / PublicationIEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
Volume41
Issue number4
Publication statusPublished - Aug 2011

Abstract

In this paper, an adaptive fuzzy backstepping dynamic surface control (DSC) approach is developed for a class of multiple-input-multiple-output nonlinear systems with immeasurable states. Using fuzzy-logic systems to approximate the unknown nonlinear functions, a fuzzy state observer is designed to estimate the immeasurable states. By combining adaptive-backstepping technique and DSC technique, an adaptive fuzzy output-feedback backstepping-control approach is developed. The proposed control method not only overcomes the problem of explosion of complexity inherent in the backstepping-design methods but also overcomes the problem of unavailable state measurements. It is proved that all the signals of the closed-loop adaptive-control system are semiglobally uniformly ultimately bounded, and the tracking errors converge to a small neighborhood of the origin. Simulation results are provided to show the effectiveness of the proposed approach. © 2011 IEEE.

Research Area(s)

  • Adaptive output-feedback control, backstepping design, dynamic-surface-control (DSC) technique, fuzzy-logic systems (FLSs), nonlinear multiple-input-multiple-output (MIMO) systems, stability analysis

Citation Format(s)

Observer-based adaptive fuzzy backstepping dynamic surface control for a class of MIMO nonlinear systems. / Tong, Shao-Cheng; Li, Yong-Ming; Feng, Gang et al.
In: IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics, Vol. 41, No. 4, 5711676, 08.2011, p. 1124-1135.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review