北斗卫星导航系统试运行服务性能评估
A Performance Evaluation of Beidou Navigation Satellite System
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摘要: 针对北斗区域卫星导航系统试运行服务,给出了系统覆盖区、服务精度、服务连续性、服务可用性的测试方法及计算公式。测试结果表明,北斗区域卫星导航系统运行稳定、可靠,能够为覆盖区内用户提供20m(95%)左右的定位精度,且其服务连续性指标优于0.92/h,可用性指标优于90%。随着系统研制建设的全面完成,有望全面达到系统设计的指标要求。Abstract: According to the integrated test task of Beidou system,the evaluation methods and algorithms of system performance,such as service area,accuracy,continuity and availability are proposed.The results show that Beidou system is stable and reliable,and its positioning accuracy,continuity,availability are better than 20 m(95%),0.92/h and 90% respectively.From these results,it can be expected that the Beidou system can provide reliable and good quality PNT services in the future.
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