Adaptive finite-time backstepping control for attitude tracking of spacecraft based on rotation matrix

作者：Guo Yong; Song Shenmin^*

来源：Chinese Journal of Aeronautics, 2014, 27(2): 375-382.

DOI：10.1016/j.cja.2014.02.017

• Adaptive control
• Attitude control
• Backstepping
• Finite-time control
• Robustness

This paper investigates two finite-time controllers for attitude control of spacecraft based on rotation matrix by an adaptive backstepping method. Rotation matrix can overcome the drawbacks of unwinding which makes a spacecraft perform a large-angle maneuver when a small-angle maneuver in the opposite rotational direction is sufficient to achieve the objective. With the use of adaptive control, the first robust finite-time controller is continuous without a chattering phenomenon. The second robust finite-time controller can compensate external disturbances with unknown bounds. Theoretical analysis shows that both controllers can make a spacecraft following a time-varying reference attitude signal in finite time and guarantee the stability of the overall closed-loop system. Numerical simulations are presented to demonstrate the effectiveness of the proposed control schemes.

• 出版日期2014-4
• 单位哈尔滨工业大学