期刊
AEROSPACE SCIENCE AND TECHNOLOGY
卷 12, 期 4, 页码 324-330出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ast.2007.08.001
关键词
attitude tracking; finite time reachability; robust; rigid spacecraft
Attitude tracking control problem for rigid spacecraft is investigated in this paper. Two controllers based on unit quaternion attitude parameterization are proposed to solve this problem. Both controllers presented here can guarantee finite time reachability of given desired attitude motion of a rigid spacecraft in the presence of model uncertainties and external disturbances. Ambiguity in quaternion representation exists in the first controller, while it is absent in the second one. The convergences of the proposed controllers for the resulting closed loop systems are proven theoretically. Numerical simulations are also provided to demonstrate the performance of the developed controllers. (C) 2007 Elsevier Masson SAS. All rights reserved.
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