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		Xuxi ZHANG.[en_title][J].Control Theory and Technology,2012,10(3):292~296.[Copy]

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XuxiZHANG
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(Control and Simulation Center, Harbin Institute of Technology; College of Science, Harbin Engineering University)

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Received:July 27, 2011Revised:August 23, 2011

基金项目:This work was supported by the National Natural Science Foundation of China (Nos. 60736022, 61074114).

Semitensor product based adaptive control for attitude tracking of spacecraft with unknown external disturbances

Xuxi ZHANG

(Control and Simulation Center, Harbin Institute of Technology; College of Science, Harbin Engineering University)

Abstract:

This paper investigates the attitude tracking and disturbance rejection problem of rigid spacecraft. Using a new matrix product, i.e., the semitensor product of matrices, the parameter uncertainties in the inertia matrix is isolated. Both the parameter uncertainties and the external disturbance are handled by robust adaptive control method. By combining the semitensor product of matrices, backstepping control methodology, and adaptive control technique, a new adaptive control law is designed. Simulation result is also presented to demonstrate the proposed design method.

Key words: Semitensor product Adaptive control Attitude tracking Disturbance rejection