中国空间科学技术

中国空间科学技术 ›› 2026, Vol. 46 ›› Issue (3): 47-60.doi: 10.16708/j.cnki.1000-758X.2026.0036

• 《中国空间科学技术（中英文）》创刊45周年专刊 • 上一篇    下一篇

综合PNT体系中导航卫星的任务要求与关键技术

谢军，张弓*，郑晋军，刘云豪，张朔，马福建   

  1. 中国空间技术研究院，北京100094
  • 收稿日期:2025-12-08 修回日期:2026-02-26 录用日期:2026-03-20 发布日期:2026-05-21 出版日期:2026-05-31

Navigation satellite in comprehensive PNT: mission requirements and key technologies

XIE Jun, ZHANG Gong*, ZHENG Jinjun, LIU Yunhao, ZHANG Shuo, MA Fujian   

  1. China Academy of Space Technology, Beijing 100094, China
  • Received:2025-12-08 Revision received:2026-02-26 Accepted:2026-03-20 Online:2026-05-21 Published:2026-05-31

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摘要： 随着全球卫星导航系统（GNSS）的广泛应用和新兴导航授时技术的不断出现，2020年起国际上GNSS发展与应用进入了一个新的阶段。各国均在加强GNSS与其他多种导航定位授时（PNT）技术融合研究的同时，更加关注GNSS系统创新与自身精度性能、连续性、完好性、安全性的提升，使其成为综合PNT体系的核心。在系统回顾国外GNSS建设和中国北斗系统成就的基础上，研究总结了卫星导航系统的发展趋势；按照构建以卫星导航为核心的综合PNT体系要求，梳理分析了GNSS用户新需求，对新型北斗卫星的任务进行了分析，提出了空间段导航卫星应进一步关注研究的关键技术，以期为推进卫星导航技术进步，建设“技术更先进、功能更强大、服务更优质”的北斗系统提供支撑。

关键词: 导航卫星, 综合PNT体系, 北斗系统, 用户需求, 任务要求, 关键技术

Abstract: With the widespread application of Global Navigation Satellite System (GNSS) and the continuous emergence of new navigation and timing technologies, GNSS development and applications have entered a new stage internationally since 2020. While various countries are strengthening research on the integration of GNSS with other PNT technologies, they are also placing greater emphasis on system innovation as well as improvements in accuracy, continuity, integrity, and security to make GNSS the core of comprehensive PNT architectures. Based on a systematic review of the achievements in the construction of foreign GNSS and China’s BeiDou navigation satellite system (BDS), development trends for satellite navigation systems are investigated and summarized. In accordance with the requirements for building an integrated PNT architecture centered on satellite navigation, the new needs of GNSS users and the missions of new BeiDou satellites are analyzed. Finally, key technologies that should be prioritized are proposed for research, aiming to provide support for advancing satellite navigation technologies and build a BeiDou system featuring “more advanced technologies, stronger capabilities, and higher-quality services”.

Key words: navigation satellite, comprehensive PNT, BeiDou navigation satellite system (BDS), user needs, mission requirements, key technologies