摘要
为了对北斗导航系统开通服务以来的定位服务性能进行全面评估,首先给出了B3单频定位、B1/B3双频定位、B3单频增强定位和B1/B3双频增强定位4种定位观测模型,设计了顾及星历和钟差龄期IODE/IODC的定位策略,利用中国区域内监测网的连续观测数据对4种定位模式的时间特性和空间特性进行了比较分析与评估。得出北京地区连续3年的测试结果和海南及新疆三地的测试结果。
In order to make a comprehensive assessment of service performance for Beld- ou Satellite Navigation System since the service in operation formally, four positioning mod- els which are B3 single-frequency positioning, B1/B3 dual-frequency positioning, B3 single- frequency differential positioning and B1/B3 dual-frequency differential positioning are given in this paper firstly, and then positioning strategy is designed to take into account IODE/IO- DC ephemeris and clock age, and last the time and the spatial characteristics of 4 kinds of po- sitioning model are analyzed and evaluated using the continuous monitoring network data in the Chinese area is prese region. The continuous three year results of Beijing area,Hainan and Xinjiang nted.
出处
《全球定位系统》
CSCD
2017年第1期1-5,共5页
Gnss World of China
关键词
北斗卫星导航系统
基本定位
增强定位
定位精度
Beidou Satellite Navigation System
fundamental positioning
differential po-sitioning
positioning accuracy
