大地测量与地球动力学2017，Vol.37Issue(11)：1150-1155,6.DOI:10.14075/j.jgg.2017.11.011
卫星截止高度角和系统组合对GNSS PPP精度影响研究
Influence of Elevation Masking Angle and System Integration on GNSS PPP Precision
摘要
Abstract
In this paper,in order to study the influence of elevation masking angle and GNSS systems integration on PPP precision,we use the data from partial MGEX stations of 10 d are dealt with the PPP method of 24 h respectively.We analyze the number of visible satellites and the positioning precision of single GPS,BDS,GLONASS,double systems integration of GPS/BDS,GPS/GLONASS,GLONASS/BDS,and triple systems integration of GPS/GLONASS/BDS,under different elevation masking angle from 5° to 55°.The results show that the elevation masking angle should be set to under 30° in the single system,under 40° in the double systems,and under 55° in the triple systems.The optimal elevation masking angle of all system integration is from 7° to 15°.When the elevation masking angle is less than 40°,the highest positioning precision is GPS/GLONASS/BDS and the lowest is BDS.When the elevation masking angle is more than 40°,it mainly depends on BDS to locate,and the positioning precision of all the system combinations is roughly equal.Moreover,as the elevation masking angle increases,the influence of systems integration on the PPP precision is gradually reduced.关键词
GNSS/PPP/MGEX/截止高度角/定位精度Key words
GNSS/PPP/MGEX/masking angle/positioning precision分类
天文与地球科学引用本文复制引用
李方超,王浩,高井祥,李增科..卫星截止高度角和系统组合对GNSS PPP精度影响研究[J].大地测量与地球动力学,2017,37(11):1150-1155,6.基金项目
Special Research Found for Doctoral Program of Higher Education,No.20130095110022 （）
National Natural Science Foundation of China,No.41674008,41604006 （）
Research Innovation Program for College Graduates of Jiangsu Province,No.SJCX17_0522.国家自然科学基金(41674008,41604006) （41674008,41604006）
高等学校博士学科点专项科研基金(20130095110022) （20130095110022）
江苏省普通高校研究生科研创新计划项目(SJCX17_0522). （SJCX17_0522）
