无线电工程2016，Vol.46Issue(7)：29-33,5.DOI:10.3969/j.issn.1003-3106.2016.07.08
BDS／GPS精密单点定位性能分析
Analysis of Performance of BDS/GPS Combined Precise Point Positioning
摘要
Abstract
The special constellation geometry of Beidou Navigation Satellite System ( BDS ) causes different observed Geometric Dilution of Precise(GDOP)for users in various regions.The article,based on the data from XMIS,POHN and MAYG stations,mainly discusses the influence of different BDS satellite constellation structures on the positioning results.From the analysis,conclusions can be made as follows:the GDOP and frequent rise and set of BDS satellite is the important reason for the low precision in BDS kinematic PPP,therefore,for users with poor observation conditions for BDS satellite,it′s difficult to achieve high precision kinematic PPP with only BDS data,but these users can use the BDS data as an effective supplementary,and can obtain high precision using kinematic BDS/GPS PPP based on GPS data combined with BDS data.Though the improvement of position accuracy is not obvious,it′s an efficient way for improvement of the convergence rate( about 20~45% ) .关键词
北斗卫星导航系统/精密单点定位/组合导航/定位精度/收敛时间Key words
Beidou satellite navigation system/Precise Point Positioning(PPP)/integrated navigation/position accuracy/conver-gence time分类
信息技术与安全科学引用本文复制引用
盛传贞,贾丹,肖根如,张京奎..BDS／GPS精密单点定位性能分析[J].无线电工程,2016,46(7):29-33,5.基金项目
国家国际科技合作专项基金资助项目（2013DFA10540）；地理信息国家重点实验室开放基金资助项目（ SKLGIE2014－M－2－4）。 （）
