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具有输入及状态未建模动态系统的输出反馈自适应控制

DOI: 10.13195/j.kzyjc.2014.1400, PP. 1847-1853

Keywords: 输入未建模动态,状态未建模动态,输出反馈,自适应控制,动态面控制

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Abstract:

针对一类具有输入及状态未建模动态的非线性系统,设计K滤波器来估计系统不可量测状态,基于动态面控制技术并利用径向基函数神经网络的逼近能力,提出一种输出反馈自适应跟踪控制方案.利用Nussbaum函数性质,有效地解决了高频增益符号未知问题.在控制器设计中引入规范化信号来约束输入未建模动态,从而有效地抑制其产生的扰动.通过理论分析证明了闭环控制系统是半全局一致终结有界的.

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