Abstract
In this paper, an adaptive fuzzy controller is designed for a nonlinear stochastic system to track the given reference via the sliding mode method. The nonlinear stochastic system is modeled by a deterministic nonlinear system with white noise obtained from the derivative of a Wiener process, which eventually generates an Itô differential equation. Compared with existing results, the main advantage is that information of the nonlinear functions is not required. Under the designed controller with the proposed update laws, the tracking error trajectories converge to an arbitrary small region around zero in the mean square norm. Simulations to show the efficiency of the proposed controller are provided.
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Acknowledgements
The authors would like to acknowledge the reviewers for their valuable comments and suggested corrections which have greatly helped us in improving the quality of the paper. This work was supported by the National Natural Science Foundation of China (11071060), Special Funds of the National Natural Science Foundation of China (11226143), the Natural Science Foundation of Hunan Province (13JJ4111), the scientific Research Fund of the Hunan Provincial Education Department (11B029, 10C0524), and the science Foundation of Hunan First Normal University (XYS11N03).
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Wang, Z., Huang, L., Yang, X. et al. Adaptive Fuzzy Control for Stochastic Nonlinear Systems via Sliding Mode Method. Circuits Syst Signal Process 32, 2839–2850 (2013). https://doi.org/10.1007/s00034-013-9602-7
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DOI: https://doi.org/10.1007/s00034-013-9602-7