Dual-Layer Inter-Satellite Link

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

A two-layer inter-satellite network in hybrid constellations: the first layer connects NRHO and DRO satellites for lunar proximity autonomous navigation; the second layer links NRHO/DRO to BDS GEO/IGSO satellites, providing Earth reference and enhancing system observability.

Application Value

Dual-Layer Inter-Satellite Link provides precise positioning capabilities for cislunar spacecraft and is a key technology for autonomous navigation.

Related Concepts

• Autonomous Orbit Determination
• Lunar Global Positioning System, LGPS
• Dilution of Precision, DOP
• Direction Cosine Matrix

References

• Chen 等 - 2026