Grid Division Method

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

A method to discretize the target service region into a grid point set for constellation performance evaluation. Using the Earth-Moon barycentric synodic coordinate system, a circular grid is drawn with the Earth-Moon distance as the reference radius, and a banded region is formed along the Moon's path through densification. This method converts continuous spatial regions into a finite number of computational points, enabling quantitative evaluation of constellation coverage, communication, and navigation performance.

Application Value

The Grid Division Method plays a significant role in cislunar space mission design, analysis, and control. In orbital design, it can be leveraged for transfer trajectory optimization; in navigation and control, it improves mission execution precision and reliability; in system analysis, it facilitates deeper understanding of complex multi-body dynamical behavior, guiding mission planning and risk assessment.

  • High-Orbit GNSS Side Lobe Reception
  • Orbital Rendezvous
  • Maneuver Classification
  • Identifiability Degree

References

  • Xu et al., 2026, Tsinghua University Press
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Contributors: ouyangjiahong, Ou Yang Jiahong