基于云平台的Starlink星座高性能仿真技术研究

Research on High-performance Emulation Technology of Starlink Constellation Based on Cloud Platform

面向星链星座的网络仿真是未来低轨卫星星座设计与建设验证和评估的重要工具。针对星链网络规模庞大,结构复杂的特性,设计了一种高性能卫星网络仿真体系。该体系基于云平台的分布式网络仿真架构,通过系统仿真工具包(system kit tool,STK) Engine底层接口开发、卫星模型库存储优化和消息异步传输等技术,实现对星链星座的快速部署,具有良好的可扩展性。实验表明:所提方法实现了400颗卫星规模的复杂卫星网络的自动化建模,在部署效率上相对于传统方法提升了39.07%,可为大规模低轨卫星建设提供仿真技术支持。

Network emulation on Starlink constellation is an important verification and evaluation tool for the design and construction of low earth orbit constellations in the future. Aiming at the characteristics of large-scale and complex structure of the Starlink network, a high-performance satellite network emulation system is designed. Based on the distributed network emulation architecture of cloud platform,through the development of STK Engine underlying interface, satellite model library storage optimization and asynchronous message transmission technology, the rapid deployment of Starlink constellation is carried out, and has good scalability. The experimental results show that the proposed method can carry out the automated modeling of a complex satellite network of 400 satellites. Compared with the traditional method, the deployment efficiency is improved by 39.07%. The method is an emulation technical support for the construction of large-scale low earth orbit satellites.