中国空间科学技术

中国空间科学技术 ›› 2026, Vol. 46 ›› Issue (5): 173-181.doi: 10.16708/j.cnki.1000-758X.2026.0087

• 论文 • 上一篇    下一篇

太赫兹通信系统星地/星间可行性研究

孙博1,2,*，禹旭敏1,2，陈明章1，江帆1，朱忠博3，郑重1,2   

  1. 1.中国空间技术研究院通信与导航卫星总体部，北京100094
    2.国家航天局卫星通信系统创新中心，北京100094
    3.中国空间技术研究院西安分院，西安710100
  • 收稿日期:2025-06-01 修回日期:2025-11-02 录用日期:2025-11-29 发布日期:2026-09-23 出版日期:2026-09-30

Feasibility study on terahertz satellite-ground/inter-satellite communication system

SUN Bo1,2,*，YU Xumin1,2，CHEN Mingzhang1，JIANG Fan1，ZHU Zhongbo3，ZHENG Zhong1,2   

  1. 1.Institute of Telecommunication and Navigation Satellites，China Academy of Space Technology，
    Beijing 100094,China
    2.Innovation Center of Satellite Communication System，CNSA，Beijing 100094，China
    3.China Academy of Space Technology(Xi'an)，Xi'an 710100，China
  • Received:2025-06-01 Revision received:2025-11-02 Accepted:2025-11-29 Online:2026-09-23 Published:2026-09-30

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摘要： 太赫兹通信系统具有传输容量大、终端体积小、传输安全性好以及频率资源丰富等优良性质，在黑障、日凌等特殊情况下有独特的通信能力。综述了国内外发展现状，并选取220GHz作为工作频率，构建以高中轨中继卫星为主的太赫兹空间通信系统，进行链路预算。计算结果表明，太赫兹通信系统实现星间高速数据中继、星地海量数据回传是可行的。最后，对未来太赫兹卫星通信系统的技术发展进行了展望。

关键词: 太赫兹波, 太赫兹通信系统, 空间通信, 星间链路, 数据回传

Abstract: There are some advantages of terahertz communication system such as large transmission capacity, small terminal size, good transmission security and abundant frequency resources, which is irreplaceable in special cases of black barrier and solar eclipse. This paper presents a comprehensive overview of domestic and international developments in the field. The terahertz space communication system with HEO and MEO relay satellites is constructed in 220GHz.The calculation results of link budget indicate that the terahertz communication system has the feasibility of high-speed data relay between satellites and massive date transmission between satellites and ground station. Finally, the technological development trends of future terahertz satellite communication systems are discussed.

Key words: terahertz wave, terahertz communication system, space communication, inter-satellite link, data backhaul