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航天器姿态机动的鲁棒自适应控制器设计 被引量:15

Robust Adaptive Controller Design for Spacecraft During Attitude Maneuver
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摘要 针对存在未知惯量矩阵和外干扰力矩的刚体航天器姿态机动问题,将自适应反步法与非线性阻尼算法结合起来,提出了一种鲁棒自适应控制器。所设计的控制器实现了对航天器惯量参数的估计,克服了外干扰力矩引起的不确定性,保证了闭环系统的所有状态是全局一致最终有界的,使得航天器姿态机动误差收敛到系统平衡点的一个较小邻域。最后在Matlab/Simulink环境下对航天器姿态机动系统进行了仿真研究,仿真结果表明了提出的控制算法处理航天器姿态机动问题的有效性和可行性。 This paper proposes a robust adaptive controller for the attitude maneuver problem of rigid spacecraft in the presence of unknown inertia matrix and external disturbance torques.The proposed design algorithm,which combined adaptive backstepping technique with nonlinear damping algorithm,guaranteed that the inertial parameters of the spacecraft were estimated and the uncertain term of disturbance torques was counteracted.The proposed controller ensured all states were globally uniformly ultimate bounded and ...
出处 《宇航学报》 EI CAS CSCD 北大核心 2008年第1期121-125,共5页 Journal of Astronautics
基金 国家自然科学基金(60674101,60774062) 高等学校博士学科点专项科研基金(20050213010)
关键词 姿态机动 自适应反步 非线性阻尼 鲁棒控制 非线性控制 Attitude maneuver Adaptive backstepping Nonlinear damping Robust control Nonlinear control
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参考文献11

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