Multi-layer low earth orbit satellite constellation deployment method and system

Abstract

The invention relates to a multilayer low earth orbit satellite constellation deployment method and system. The method comprises the following steps: calculating a link data rate from a TST to a single satellite link; determining at least the number of required satellites covered by each TST according to the link data rate and the total backhaul capacity requirement; determining the initialized multi-layer low earth orbit satellite constellation deployment according to at least the number of required satellites; obtaining intersection points of all satellite coverage area boundaries in the initialized multi-layer low earth orbit satellite constellation deployment, and determining the number of satellites covered by each intersection point; optimizing the initialized multi-layer low earth orbit satellite constellation deployment according to the number of satellites covered by each intersection point based on satellite layers of different latitudes, and determining the optimized multi-layer low earth orbit satellite constellation deployment; and determining the optimal multi-layer low earth orbit satellite constellation deployment according to the optimized multi-layer low earth orbit satellite constellation deployment. According to the invention, the satellite redundant coverage condition can be avoided and the satellite deployment cost can be reduced.

Description

technical field [0001] The invention relates to the field of multi-layer low-earth orbit satellite constellation deployment, in particular to a multi-layer low-earth orbit satellite constellation deployment method and system. Background technique [0002] Due to the current unbalanced infrastructure deployment and unstable wireless communication environment, nearly half of the regions in the world still have poor or no Internet access. In addition, the serious shortage of available bandwidth resources and the very limited backhaul capacity have also become two bottlenecks restricting the development of traditional terrestrial networks. The continuous development of multi-layer low earth orbit satellite network is expected to solve the above problems, which can provide large-capacity backhaul, global coverage and more flexible network access services. In the multi-layer low earth orbit satellite network, the ground-satellite as the access point The terminal station (Terrestr...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-layer low-earth orbit satellite constellation deployment method and system to solve the satellite redundant coverage situation in the existing satellite constellation deployment method, resulting in high satellite deployment costs and the inability to consider seamless global coverage at the same time Issues with backhaul capacity requirements for range and TST

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