Pointing control of spacecraft using two SGCMGs via LPV control theory

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• 作者：Sangwon Kwon ; ^a ; ^{sangwonkwon@gmail.com} ; ^{kwon@aero.osakafu-u.ac.jp} ; Takashi Shimomura^a ; ^{shimomura@aero.osakafu-u.ac.jp} ; Hiroshi Okubo^a ; ^{okubo@aero.osakafu-u.ac.jp}
• 关键词：Spacecraft ; Single-gimbal control moment gyro ; Pointing control ; Linear parameter-varying ; Gain-scheduled control
• 刊名：Acta Astronautica
• 出版年：2011
• 出版时间：April-May 2011
• 年：2011
• 卷：68
• 期：7-8
• 页码：1168-1175
• 全文大小：405 K

文摘

In this paper, we consider a pointing control of a spacecraft using two single-gimbal control moment gyros (SGCMGs). Our pointing control problem is to make the line-of-sight of a camera or an antenna that is fixed on a body axis aim along a desired direction. To solve this problem, we first state the control objective for the pointing control through the angular momentum conservation principle. Then, we develop a gain-scheduled (GS) controller via linear parameter-varying (LPV) control theory. Finally, the feasibility of the proposed control method is shown by a numerical simulation.