Chinese Space Science and Technology ›› 2025, Vol. 45 ›› Issue (5): 91-100.doi: 10.16708/j.cnki.1000-758X.2025.0077

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Research on the navigation constellation of the Lunar South Pole

GAO Weiguang1,2,LI Gang 1,2,*,WANG Shen 3,4,5,LIU Yingchun 3,4,5,WU Guoqiang3,4   

  1. 1.Beijing Institute of Tracking and Telecommunication Technology, Beijing, 100094, China
    2.Key Laboratory of Smart Earth, Beijing, 100094, China
    3.Innovation Academy for Microsatellites, Chinese Academy of Sciences, Shanghai, 201203, China
    4.Shanghai Engineering Center for Microsatellites, Shanghai, 201203, China
    5.University of Chinese Academy of Sciences, Beijing, 100049, China
  • Received:2024-10-09 Revision received:2024-11-09 Accepted:2024-11-29 Online:2025-09-17 Published:2025-10-01

Abstract: The configuration of the Lunar South Pole satellite navigation constellation is studied. Comparing the dynamic characteristics of the lunar orbit and the three body orbit, a hybrid heterogeneous constellation mainly composed of NRHO (Near-rectilinear Halo Orbit) and ELFO (Elliptical Lunar Frozen Orbit) is proposed to support Lunar South Pole navigation. A dual optimization objective function of constellation value and total costs is constructed, with the number of satellites in different orbits and ELFO satellite orbit parameters as decision variables. The NSGA-Ⅱ (Non-dominated Sorting Genetic Algorithm Ⅱ) algorithm is used to optimize the configuration design of the Lunar South Pole navigation constellation. The simulation results show that a Lunar South Pole constellation configuration of 2 NRHO and 4 ELFO satellites can achieve CV value of 95% and a positioning accuracy of 50m. The relevant results can provide reference for the research and engineering application of Lunar South Pole navigation constellation in the future.

Key words: the Lunar South Pole, satellite navigation, hybrid constellations, multi-objective optimization, configuration design