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Simplified Constellation Architecture for the Libration Point Satellite Navigation System

Published online by Cambridge University Press:  05 April 2016

Lei Zhang
Affiliation:
(School of Astronomy and Space Science, Nanjing University, Nanjing 210093, China)
Bo Xu*
Affiliation:
(School of Astronomy and Space Science, Nanjing University, Nanjing 210093, China)
*
(E-mail: xubo@nju.edu.cn)

Abstract

In this paper, a simplified constellation architecture consisting of only two navigation satellites located around the Earth-Moon L1,2 libration points is obtained for the Universe Lighthouse. In order to determine the feasible constellations that can achieve continuous global coverage for lunar orbits, an exhaustive search over all possible combinations of libration point orbits is performed first. With the use of a fitting procedure, amplitude relations between the feasible L1 and L2 libration point orbits are derived by polynomial interpolation. After that, a cislunar navigation simulation is conducted to verify the navigation performance of the candidate two-satellite constellations. The final Monte Carlo simulation results indicate that the simplified system is available for cislunar navigation and the best accuracy of a few tens of metres can be achieved for both the trans-lunar cruise phase and lunar orbit phase.

Type
Research Article
Copyright
Copyright © The Royal Institute of Navigation 2016 

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References

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