Robust decentralized attitude coordination control of spacecraft formation |
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Authors: | Jin Erdong Jiang Xiaolei Sun Zhaowei |
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Affiliation: | aHarbin Institute of Technology, Harbin, Heilongjiang, 150080, China;bNorth China Electric Power University, Baoding, Hebei, 071000, China |
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Abstract: | The attitude coordination control problem for multiple spacecraft is investigated in this paper. A simple decentralized variable structure coordinated controller is proposed using Lyapunov’s direct method. In the presence of model uncertainties, external disturbances and time-varying delays in the intercommunication, the presented controller can render a spacecraft formation consistent to a prespecified orientation in the globally-convergent sense. By virtue of a corollary of Barbalat’s Lemma, the convergence of the proposed controller for the resulting closed-loop system is proved theoretically. Numerical simulations are also included to demonstrate the performance of the developed controller. |
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Keywords: | Spacecraft formation Attitude coordination Decentralized controller Robust Globally convergent |
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