| 仅有单个陀螺的Drag—free卫星初始速率阻尼模糊控制研究 |
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| 引用本文： | 党朝辉,项军华,刘昆.仅有单个陀螺的Drag—free卫星初始速率阻尼模糊控制研究[J].上海航天,2012,29(1):6-11. |
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| 作者姓名： | 党朝辉 项军华 刘昆 |
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| 作者单位： | 国防科学技术大学航天与材料工程学院,湖南长沙,410073 |
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| 摘 要： | 研究了在仅有偏航姿态测量陀螺时，利用Drag—free卫星与其内部定向体间的相对状态观测值实现姿态确定的方法。针对Drag—free卫星的特点，建立了定向体的空间姿态观测模型和Drag—free卫星的姿态动力学方程，据此推导了用于姿态确定的Kalman滤波算法。为实现初始速率阻尼阶段Drag—free卫星的三轴姿态稳定，设计了模糊控制律。仿真结果验证了方法的有效性。
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| 关 键 词： | Drag—free卫星 单个陀螺 初始速率阻尼 模糊控制 |
A Fuzzy Control Method for Initial Angular Velocity Damping of Drag-Free Satellite Based on One Peg-Top |
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| DANG Zhao-hui,XIANG Jun-hua,LIU Kun.A Fuzzy Control Method for Initial Angular Velocity Damping of Drag-Free Satellite Based on One Peg-Top[J].Aerospace Shanghai,2012,29(1):6-11. |
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| Authors: | DANG Zhao-hui XIANG Jun-hua LIU Kun |
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| Institution: | (College of Aerospace and Material Engineering, NUDT, Changsha 410073, Hunan, China) |
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| Abstract: | The attitude determination method by using the relative state oberzvation of the drage-free satellite and its inner body was studied when there was one peg-top gyro of yaw attitude in this paper. The observing model of direction-body and the attitude motion dynamics of the satellite were established according to the characteristic of the drag-free satellite. The Kalman filtering method of attitude determination was derived. The fuzzy control law was designed to realize the three-axial stability of the drag-free satellite in the initial angular velocity damping phase. The simulation results confirmed the efficiency of the method. |
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| Keywords: | Drag-free satellite One peg-top gyro Initial angular velocity damping Fuzzy logic control |
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