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Acta Aeronautica et Astronautica Sinica ›› 2024, Vol. 45 ›› Issue (22): 330306.doi: 10.7527/S1000-6893.2024.30306

• Electronics and Electrical Engineering and Control • Previous Articles    

Stationkeeping strategies for close formation flight on distant retrograde orbits

Haiyue AO1,2, Chihang YANG3, Yu SHI1, Hao ZHANG1,2()   

  1. 1.Technology and Engineering Center for Space Utilization,Chinese Academy of Sciences,Beijing 100094,China
    2.School of Aerospace Engineering,University of Chinese Academy of Sciences,Beijing 100049,China
    3.Beijing Institute of Control Engineering,Beijing 100094,China
  • Received:2024-02-22 Revised:2024-04-25 Accepted:2024-06-13 Online:2024-06-26 Published:2024-06-25
  • Contact: Hao ZHANG E-mail:hao.zhang.zhr@gmail.com;hao.zhang.zhr@csu.ac.cn
  • Supported by:
    Strategic Priority Research Program of the Chinese Academy of Sciences(XDA30010200)

Abstract:

Distant Retrograde Orbit (DRO) is a family of large-scale, lunar-retrograde periodic orbits in the cislunar space. Due to its advantages of long-term stability and low-energy transfer, DRO has become a potential orbit for many cislunar space missions. Investigating close formation techniques on DRO is of great significance for cislunar on-orbit servicing. Considering navigation and execution errors, it is essential to study the uncertainty propagation of close relative motion on DRO and design stationkeeping strategies. The fundamental solution set of linearized relative motion on DRO obtained through the Floquet theory is introduced. Based on periodic solutions, analyses of sensitivity and safety uncertainty propagation of DRO formation flight are conducted using the Cauchy-Green tensor and unscented transformation, respectively. Based on these analyses and considering engineering constraints, it is found that keeping the maneuver frequency of 2 times per cycle and the maneuver locations at two perilunes is the near-optimal stationkeeping scheme. Following this, two stationkeeping algorithms are proposed based on the concepts of relative trajectory following and absolute phase bias. The simulation results show that both stationkeeping algorithms can ensure long-term safety and reasonable configuration of DRO close formation flight.

Key words: distant retrograde orbit (DRO), circular restricted three-body problem, relative motion, uncertainty propagation, station keeping

CLC Number: