卫星互联网未来应用场景及安全性分析

The future application scenarios and security analysis of satellite Internet

卫星互联网技术创新和网络部署引发了全球对于空间资源的激烈竞争。国内外卫星互联网发展对比凸显了我国卫星互联网起步晚、针对性监测能力差等劣势,不利于我国卫星互联网部署与应用。为深入发掘卫星互联网隐含的安全风险,文中基于典型卫星互联网系统方案和应用场景,首先概述了卫星互联网系统架构和通信特点,然后从卫星网络不同层面分析了空中节点和链路因信道暴露而产生电磁频谱干扰、空间链路非法接入、网络卫星节点遭受恶意攻击等隐患,最后指出我国增强针对性监测能力与研究保障通信安全可靠性的必要性和建议措施。

Technological innovation and network deployment of satellite Internet have triggered fierce competition for space resources around the world.The comparison of the development of satellite Internet at home and abroad highlights the disadvantages of late start of satellite Internet and poor ability of targeted monitoring,which is not conducive to the deployment and application of satellite Internet in China.In order to deeply discover the hidden security risks of satellite Internet,based on the typical satellite Internet system scheme and application scenario,this paper first summarizes the structure and communication characteristics of satellite Internet system.Then the hidden dangers are analyzed,including electromagnetic spectrum interference,illegal access to space link and malicious attack on network satellite nodes due to channel exposure from different levels of satellite network.Finally,it points out the necessity and suggestion measures to enhance the targeted monitoring ability and study to ensure the security and reliability of communication.