Exosystem

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

In nonlinear regulation theory, an autonomous dynamical system describing the source of external signals (reference trajectories and disturbances). In Earth-Moon L2 Halo orbit station-keeping, the exosystem consists of two sinusoidal oscillators at the in-plane and out-of-plane natural frequencies, dynamically generating the quasi-Halo orbit reference trajectory and periodic eccentricity perturbations.

Related Concepts

• Manifold Propagation
• Low Lunar Orbit, LLO
• Gravitational Asymmetry at Libration Points
• Complex Periodic Orbit

References

• Di Giamberardino & Monaco 1996
• Elobaid et al. 2022