Linked Autonomous Orbit Determination, LAOD

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

A navigation technique where multiple satellites jointly determine their orbits using only inter-satellite measurements without ground tracking. By exploiting the uniqueness of the navigation satellite's orbital orientation in an asymmetric gravitational field, it resolves the rank-deficiency problem in absolute positioning that affects single-satellite autonomous orbit determination.

Application Value

Linked autonomous orbit determination achieves high-precision orbit determination through multi-source data fusion.

  • Geometric Dilution of Precision
  • Very Long Baseline Interferometry
  • Deep Space Network

References

  • 宇航学报 2023, 44(8): 1151-1159
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Contributors: ouyangjiahong, Ou Yang Jiahong