| 低轨对地凝视卫星姿态控制 |
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| 引用本文： | 邬树楠,孙兆伟,叶东.低轨对地凝视卫星姿态控制[J].上海航天,2010,27(1):15-19,56. |
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| 作者姓名： | 邬树楠 孙兆伟 叶东 |
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| 作者单位： | 哈尔滨工业大学卫星技术研究所,黑龙江,哈尔滨,150001 |
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| 摘 要： | 研究了低轨航天器执行对地观测任务时对地凝视观测的姿态控制。根据刚体动力学导出基于误差四元数和误差角速度的动力学与运动学方程,设计了一变结构控制律。仿真结果表明:在对地凝视的姿态控制过程中,设计的控制方法响应速度快于传统控制方法,对卫星转动惯量摄动及外部干扰的鲁棒性较佳。
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| 关 键 词： | 低轨对地凝视卫星 姿态控制 变结构控制 滑模 鲁棒性 |
Attitude Control of a Staring-Imaging Satellite in LEO |
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| WU Shu-nan,SUN Zhao-wei,YE Dong.Attitude Control of a Staring-Imaging Satellite in LEO[J].Aerospace Shanghai,2010,27(1):15-19,56. |
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| Authors: | WU Shu-nan SUN Zhao-wei YE Dong |
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| Institution: | WU Shu-nan,SUN Zhao-wei,YE Dong(Research Center of Satellite Technology,Harbin Institute of Technology,Harbin Heilongjiang 150001,China) |
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| Abstract: | The attitude control of low earth orbit satellite was studied in this paper while it was on attitude maneuver to make its payload stare at ground targets.Dynamic equation and kinematics equation were obtained by using the dynamics of rigid body based on the error quaternion and error angular velocities.A variable structure control law was designed using Lyapunov theory,The simulation results showed that the variable-structure control law designed had quicker response than the traditional method and was robu... |
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| Keywords: | Low earth orbit staring image satellite Attitude control Variable-structure control Sliding mode Robustness |
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