Uncertainty Propagation

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

The process by which initial orbital perturbations propagate and evolve over time in a dynamical system. In DRO close formation flight, uncertainty propagation analysis combines CGT (characterizing sensitivity) and unscented transformation (characterizing safety) to reveal error propagation patterns under different initial phases and coast durations, providing the basis for stationkeeping scheme design.

Application Value

The Uncertainty Propagation 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.

References

  • 敖海跃等 2024
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Contributors: ouyangjiahong, Ou Yang Jiahong