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基于动态面的高超声速飞行器模糊自适应非线性控制

, PP. 1849-1854

Keywords: 高超声速飞行器,动态面,Nussbaum,增益,模糊自适应

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Abstract:

针对高超声速飞行器模型非线性、多变量和参数不确定特性,并考虑控制增益变化可能导致控制奇异值问题,提出一种基于动态面的模糊自适应非线性控制方法.根据动态面和动态逆策略,分别设计了高度和速度跟踪控制器.利用模糊自适应方法在线逼近不确定函数项,并采用Nussbaum增益技术抑制虚拟控制增益不确定影响,以减少在线学习量,保证系统的半全局一致最终有界性.仿真结果表明,所提出的方法可实现飞行器对高度和速度的准确跟踪控制.

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