北斗卫星导航系统安全和完好性监测现状与发展

 随着导航现代化概念研究的深化，安全和完好性已成为全球导航卫星系统（GNSS）至关重要的性能指标。本文从导航战角度讨论了系统安全的内涵及组成，以及系统完好性监测的必要性和监测评估方法。结合北斗卫星导航系统建设，着重介绍了在信号传输体制设计、频率规划与协调、抗干扰体系建设、星间链路和完好性监测方面取得的关键技术突破和研究成果。最后，讨论了卫星导航发展趋势。

Current state and development of monitoring system safety and integrity for BeiDou Satellite Navigation System

Along with the development of navigation modernization concept, the system safety and the integrity have become the key performances of the GNSS. This paper discusses the connotation and the composition of the system safety from the perspective of navigation warfare. Combined with the construction of the BeiDou system, this paper reviews the key breakthroughs and research achievements in the design of the signal system, the frequency planning and coordination, the construction of the anti-jamming architecture, the inter-satellite link and integrity monitoring. Finally, the future development of the satellite navigation system is discussed.