Adaptive flault-tolerant control of spacecraft attitude dynamics with actuator failures

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Han, Yu and Biggs, James and Cui, Naigang (2015) Adaptive flault-tolerant control of spacecraft attitude dynamics with actuator failures. Journal of Guidance, Control and Dynamics. ISSN 1533-3884 (https://doi.org/10.2514/1.G000921)

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Abstract

Spacecraft play an increasingly important role in various areas of modern society, such as telecommunication, earth observation, and space exploration. It is estimated that there have been more than 7000 spacecrafts launched all over the world. Despite rigorous testing many of these spacecraft fail on orbit due to various reasons [1], which consequently often lead to the failure of the whole mission. According to [2], over 30% of spacecraft failures occur at the subsystem level of the Attitude and Orbit Control System (AOCS). Moreover about 50% of the AOCS failures are attributed to actuator errors. The purpose of this paper is to present an actuator fault-tolerant attitude control.

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