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第40届中国控制会议

作者： Sanxia Wang Linqi Wang Wenjing Yang Xueliang Wang Jianwei Xia School of Mathematics Science Liaocheng University

This paper develops an adaptive neural network tracking control scheme for a class of nonlinear multi input and multi output uncertain systems with unmeasured states and unknown control coefficients. In the control scheme, a neural state observer is established to estimate the unmeasured states and Nussbaum function is introduced to compensate the influence of the unknown control coefficients. Meanwhile, the neural network technique is used to approximate the combinational uncertainties at each step of backstepping process. It is proved that the outputs of the system to track the target trajectory within a compact set and all signals of the closed-loop system are bounded. Finally, a simulation example is provided to show the effectiveness of the proposed control method.

关键词： Adaptive neural network control nonlinear multi input and multi output uncertain systems unknown control coefficients unmeasured states

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Control of nonholonomic systems with nonlinear unmeasured dynamics by output feedback

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控制理论与应用（英文版） 2013年第3期11卷 504-512页

作者： Yan ZHAO Yuqiang WU School of Automation Southeast University Institute of Automation Qufu Normal University

This paper studies the problem of output feedback stabilization for a class of more general nonholonomic systems whose nonlinear drifts are polynomially bounded by high-order terms of unmeasured states. An output feedback controller is obtained applying the backstepping approach and the dual observer method. The homogenous theory is also utilized in the recursive process. Together with a switching control scheme, the designed controller guarantees that the closed-loop system is output feedback globally asymptotically stabilized and the states converge to zero asymptotically. A simulation example is provided to illustrate the validness of the proposed approach.

关键词： Output feedback Switching control High order unmeasured states

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维普期刊数据库

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Output feedback stabilization of nonholonomic systems with nonlinear unmeasured dynamics

Output feedback stabilization of nonholonomic systems with n...

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第三十一届中国控制会议

作者： ZHAO Yan~1 WU Yuqiang~2 1.School of Automation Southeast University Nanjing 210096 P.R.China 2.Institute of Automation Qufu Normal University Qufu 273165 P.R.China

＜正＞This paper studies the problem of output feedback stabilization for a class of more general nonholonomic systems whose nonlinear drifts are polynomially bounded by linear terms and high order terms of unmeasured *** output feedback controller is obtained applying the backstepping approach and the dual observer *** homogenous theory is also utilized in the recursive *** with a switching control scheme,the designed controller guarantees that the closed-loop system is output feedback globally asymptotically stabilized and the states converge to zero asymptotically.A simulation example is provided to illustrate the validness of the proposed approach.

关键词： Output feedback Switching control High order unmeasured states

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