一种无角速度信息的挠性航天器姿态控制方法

Abstract

Abstract: A method for designing attitude stabilization controllers is proposed in this paper for flexible spacecraft without angular velocity measurements. In order to solve the attitude control problem when the angular velocity is not available due to gyro failure or gyroless configuration, a velocity-free attitude regulation controller is proposed in this paper based on quaternion with the global asymptotic stability of the closed loop system proved by combining the Lyapunov direct method with the LaSalle’s theorem. An improved controller is also designed in this paper. Numerical simulations demonstrate the effectiveness of the proposed method.

Key words: flexible spacecraft, attitude control, velocity-free controller, Lyapunov approach

CLC Number:

v448.2

CAI Jian1,2, WANG Fang1,2 , ZHANG Honghua1,2. A Velocity-free Attitude Controller of Flexible Spacecraft[J]., 2009, 35(2): 18-23.

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A Velocity-free Attitude Controller of Flexible Spacecraft

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