摘要
针对北斗卫星导航系统(BDS)采用异构星座,其GEO、IGSO卫星飞行区域并非全球覆盖,传统监测站覆盖性能分析方法不宜直接应用以及导航卫星在轨运行时受到多种摄动影响,其实际运行区域与设计区域有别等问题,提出采用实测数据界定BDS导航卫星飞行区域的方法,并以BDS试验评估系统国内跟踪站网及GPS/BDS测试评估系统跟踪站网为例,分析了监测网的覆盖性能。实验证明本文提出的方法可较为合理、能够较准确地描述BDS地面跟踪站网的监测覆盖性能。
Different from the other satellite navigation systems,BeiDou navigation System（BDS）adopts heterogeneous constellation design.The flying area of geostationary and inclined geostationary satellites only covers a small part of the constellation sphere.Traditional method can＇t be directly used for the ground monitoring network coverage ability analysis.In addition,the navigation satellites will not exactly fly through the designed routes since they are susceptible to various disturbing forces.In the paper,a novel method was put forward to definite the BDS satellites flying area according to the real measurement data.Then the monitoring ability was analyzed for two ground tracking networks.
出处
《测绘科学》
CSCD
北大核心
2016年第5期1-4,20,共5页
Science of Surveying and Mapping
基金
国家自然科学基金(D040103)
关键词
北斗卫星导航系统
异构星座
地面监测站网
覆盖性能
卫星飞行区域
BeiDou navigation satellite system
heterogeneous constellation
ground monitoring network
coverage ability
satellite flying area
