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Relative Position and Attitude Coupled Control with Finite-time Convergence for Spacecraft Rendezvous and Docking

机译:相对位置和姿态耦合控制,用于航天器对接和对接的有限时间融合

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In this paper, the problem of relative position and attitude coupled control for rigid spacecraft in rendezvous and docking is investigated. We propose a control scheme with finite-time convergence based on the given coupled dynamics of relative position and attitude, in the presence of unknown but bounded external disturbance. Furthermore, we adopt a boundary layer function into the controller to alleviate the chattering phenomenon and maintain the finite-time convergence. Considering the existence of control saturation limit due to the physical structure and energy consumption, the control function is processed before introducing into the actuators. Finally, simulation results are presented to illustrate the effectiveness of our control scheme.
机译:在本文中,研究了对刚性航天器中的相对位置和姿态耦合控制的问题。我们提出了一种基于相对位置和姿态的给定耦合动态的有限时间收敛的控制方案,在存在未知但有界外部干扰的情况下。此外,我们采用边界层函数进入控制器中以缓解抖动现象并维持有限时间的收敛。考虑到由于物理结构和能量消耗引起的控制饱和极限的存在,在引入致动器之前处理控制功能。最后,提出了仿真结果以说明我们的控制方案的有效性。

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