日本航空宇宙学会論文集
Online ISSN : 2432-3691
Print ISSN : 1344-6460
ISSN-L : 1344-6460
論文
適応型バックステッピング法による宇宙往還機の飛行制御系設計
安部 明雄岩本 光平嶋田 有三
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2013 年 61 巻 2 号 p. 38-46

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This paper presents a new guidance and control system based on an adaptive backstepping method for a space transportation system. In recent years, many studies of flight control systems using feedback linearization combined with time-scale separation have been carried out. Since this type of control system does not depend on the design points along a predetermined trajectory, the designed system can be applied to an extensive flight region. However, in this method, control performance tends to deteriorate with changes in the control gains and parameters because it is difficult to guarantee the stability of the system. Additionally, since it is not easy to obtain a priori knowledge about disturbances, aerodynamic characteristics, an estimation mechanism must be added to the system. For this problem, we propose an adaptive flight control system by combining with feedback linearization, backstepping method, and disturbance observers. A disturbance observer is effective at estimating the effect of extraneous signals. In the proposed system, by appropriate redesign of the disturbance observer, it becomes possible to guarantee the stability of the entire system including the estimation mechanism. Numerical simulations are performed to verify the effectiveness and robustness of the proposed system when applied to an automatic landing problem.

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© 2013 The Japan Society for Aeronautical and Space Sciences
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