A method and system for deploying a multi-layer low earth orbit satellite constellation

Abstract

The invention relates to a multi-layer low earth orbit satellite constellation deployment method and system. The method includes: calculating the link data rate of a TST to a single satellite link; determining at least the required number of satellites that each TST is covered according to the link data rate and the total backhaul capacity requirements; determining the post-initialization Multi-layer low-earth orbit satellite constellation deployment; obtain the intersection points of all satellite coverage area boundaries in the initialized multi-layer low-earth orbit satellite constellation deployment, and determine the number of satellites covered by each intersection point; based on satellite layers at different latitudes, according to The number of satellites covered by each intersection optimizes the deployment of the initialized multi-layer low-earth orbit satellite constellation, and determines the optimized multi-layer low-earth orbit satellite constellation deployment; according to the optimized multi-layer low-earth orbit satellite constellation deployment, the optimal Optimize multi-layer low earth orbit satellite constellation deployment. The invention can avoid satellite redundant coverage and reduce satellite deployment cost.

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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