Adaptive Back-Stepping Sliding Mode Attitude Tracking of Rigid Spacecraft with disturbances}%uthorCHN{张三丰ffil{1},李四ffil{2}
首发时间:2012-12-28
Abstract:The attitude tracking control problem for rigid spacecraft is investigated in thispaper. A novel adaptive approach is proposed with the utilization of sliding mode control(SMC) and backstepping techniques (BT) to not only achieve accurate attitude tracking control forspacecraft system, but also be robust against the inertia uncertainties and external disturbances. The proposed controller including the merits of SMC, BT and adaptive technique to provide fast response and accurate attitude tracking. The proposed controller is continuous, then it is chattering-free. What's more, the proposed controller does not include any information of unknown inertial matrix, then it can be used widely in practical application. Finally, simulation results are presented to illustrate effectiveness of the control strategies.
keywords: Adaptive control, Attitude tracking, Sliding mode control, Backstepping technique.
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基于扰动的刚体飞行器自适应反推滑模控制
摘要:这篇文章研究了刚体飞行器的姿态跟踪控制问题。利用滑模控制技术和反推技术,设计了一个新的自适应控制器,其不仅能完成精确的飞行器系统姿态跟踪控制,而且对惯性参数不确定和外部扰动有很强的鲁棒性。所设计的控制器包含了滑模技术、反推技术和自适应技术的优点,因此其能提供快速地响应和精确地姿态跟踪性能。因为所设计的控制器是连续的,所以其可以有效地消除抖振问题。 而且,所设计的控制器不含有任何不确定惯性矩阵的信息,所以其能在实际中得到广泛的应用。最后,仿真结果表明了控制算法的有效性。
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