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This paper is concerned with the trajectory tracking control problem of a class of nonaffine stochastic nonlinear switched systems with the nonlower triangular form under arbitrary switching. Fuzzy systems are employed to tackle the problem from packaged unknown nonlinearities, and the backstepping and robust adaptive control techniques are applied to design the controller by adopting the structural characteristics of fuzzy systems and the common Lyapunov function approach. By using Lyapunov stability theory, the semiglobally uniformly ultimate boundness in the fourth-moment of all closed-loop signals is guaranteed, and the system output is ensured to converge to a small neighborhood of the given trajectory. The main advantages of this paper lie in the fact that both the completely nonaffine form and nonlower triangular structure are taken into account for the controlled systems, and the increasing property of whole state functions is removed by using the structural characteristics of fuzzy systems. The developed control method is verified through a numerical example.
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Huanqing Wang
Bohai University
Peter Liu
Kunming University of Science and Technology
Ben Niu
China Pharmaceutical University
IEEE Transactions on Cybernetics
Carleton University
Beijing Jiaotong University
Bohai University
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Wang et al. (Thu,) studied this question.
synapsesocial.com/papers/6a2112aeffa0738687c3ba1b — DOI: https://doi.org/10.1109/tcyb.2017.2740841