摘要
针对当前BDS-2/BDS-3组合定位性能,基于国际GNSS服务(IGS)跟踪站对BDS-2/BDS-3的组合定位实测数据,分析了北斗二号(BDS-2)不同类型卫星对北斗三号(BDS-3)卫星B1I、B3I与B1I/B3I双频组合伪距单点定位精度的影响.经研究发现,BDS-2不同类型星座卫星都能有效改善BDS-3卫星可见数与卫星空间几何构型,地球静止轨道(GEO)卫星、倾斜地球同步轨道(IGSO)卫星、中圆地球轨道(MEO)卫星使BDS-3单频和双频伪距单点定位精度的提升在20%以内,而全部BDS-2卫星使BDS-3单频和双频伪距单点定位精度的提升在30%以内,整体提升关系为:BDS-2全部卫星>IGSO卫星>GEO卫星>MEO卫星.
In view of the current BDS-2/BDS-3 integrated positioning performance,this paper analyzes the impact of different types of BDS-2 satellites on the accuracy of B1I,B3I,B1I/B3I pseudo range single point positioning accuracy of BDS-2/BDS-3 tracking station.It is found that different types of BDS-2 constellation satellites can effectively improve the visibility and geometry of BDS-3 satellite.GEO IGSO and MEO can improve BDS-3 single frequency and dual frequency pseudo range single point positioning accuracy within 20%,while all BDS-2 satellites can improve BDS-3 single frequency and dual frequency pseudo range single point positioning accuracy within 30%.The overall improvement relationship is all BDS-2 satellites>IGSO>GEO>MEO.
作者
王汉民
WANG Hanmin(China Shaanxi Nuclear Industry Group 214 Brigade Co.,Ltd.,Xi’an 710000,China)
出处
《全球定位系统》
CSCD
2021年第2期44-48,共5页
Gnss World of China
基金
陕西省宁陕县杨泗庙-懒板凳一带钨钼多金属矿预查(61201506229)。
作者简介
通信作者:王汉民(1986-),男,在职研究生,工程师,主要研究方向为地理信息系统,E-mail:24311993@qq.com。
