Abstract
Multiple spacecraft formation control about the L2 libration point is investigated in this paper. the circular restricted three-body problem with Sun and Earth as the two primaries is utilized as a framework of study. the idea of virtual structure is considered as the architecture of multiple spacecraft formation. the center of the virtual rigid body follows a nominal orbit around the L2 libration point. the individual spacecraft is controlled so as to keep a constant relative distance from the center of the virtual structure. a nonlinear model is developed that describes the relative formation dynamics. This nonlinear control problem was addressed by employing a relatively new nonlinear control approach, called the θ - D technique. This method is based on a series solution to the Hamilton-Jacobi-Bellman equation and gives a closed-form suboptimal feedback solution. Simulation results demonstrate that this controller is able to provide millimeter-level formation flying accuracy. Copyright © 2005 IFAC.
Recommended Citation
M. Xin et al., "Multiple Spacecraft Formation Control using Θ - D Method," IFAC Proceedings Volumes (IFAC-PapersOnline), vol. 16, pp. 307 - 312, Elsevier, Jan 2005.
The definitive version is available at https://doi.org/10.3182/20050703-6-cz-1902.02012
Department(s)
Mechanical and Aerospace Engineering
Keywords and Phrases
Formation control; Libration point; Nonlinear systems; Optimal control
International Standard Book Number (ISBN)
978-008045108-4
International Standard Serial Number (ISSN)
1474-6670
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Elsevier, All rights reserved.
Publication Date
01 Jan 2005
