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�������պ����ѧѧ�� 2010, Vol. 36 Issue (12) :1387-1391    DOI:
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Flexible spacecraft attitude control based on perturbation method analysis
Cui Meiyu, Xu Shijie, Jia Yinghong*
School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� In order to achieve flexible spacecraft high precision attitude control, using the perturbation method, the dynamic equations were divided into the zero order and first order systems. For the zero-order nonlinear time-invariant systems, taking into account the inertia uncertainty and disturbance, the nonlinear direct adaptive control law was improved, and the improvement of the gain adaptation law aimed at the higher precision. Also, the stability proof was given. For the first-order system, the proportional-integral(PI) controller and positive position feedback(PPF) controller were designed to suppression the vibration. The simulation shows that the perturbation analysis and the corresponding controller design can achieve the flexible spacecraft high precision attitude control.
Keywords�� flexible spacecraft   perturbation method   high precision   attitude control     
Received 2009-10-30;
About author: �����(1983-),Ů,����������,��ʿ��,cuimeiyuer@163.com.
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�����, ������, ��Ӣ��.�����㶯ģ�͵����Ժ�������̬����ϵͳ���[J]  �������պ����ѧѧ��, 2010,V36(12): 1387-1391
Cui Meiyu, Xu Shijie, Jia Yinghong.Flexible spacecraft attitude control based on perturbation method analysis[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2010,V36(12): 1387-1391
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2010/V36/I12/1387
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