摘要
根据高精度卫星导航和电离层活动监测的需要,利用全球238个GPS基准站的双频实测数据,通过建立球谐函数模型的同时解算电离层电子含量以及GPS与GLONASS卫星DCB及其相应的接收机DCB;将其结果与CODE、IGS分析中心的结果进行比较分析,表明该方法建立的模型是可靠的,其GPS和GLONASS卫星DCB相对于CODE精度优于0.1ns,相对于IGS精度优于0.2ns,其GPS测站DCB和GLONASS测站DCB相对于CODE和IGS精度优于1ns,垂直总电子含量相对CODE和IGS精度优于3TECU,组合结果精度高于组合前。
According to the requirements of high precision satellite navigation and ionosphere activity monitoring, double-frequency measurement data from 238 IGS stations are used to calculate vertical ionosphere electron content （VTEC）, DCB of GPS, GLONASS and the corresponding receiver based on the spherical harmonic function model. The results show that this implemented model is reliable. The DCB precision of GPS and GLONASS obtained is less than 0.1 ns when compared with the results of CODE and less than 0.2 ns when compared with that of IGS. The DCB precision of GPS and GLO- NASS receivers are less than that 2 ns, while the precision of VTEC is better than 3 TECU in comparison with that of CODE and IGS, and better than before combination.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2014年第8期930-934,共5页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(41174024
11273046
40974018)
国家863计划资助项目(2013AA122402)
上海市科学技术委员会资助项目(12DZ2273300)
中科院百人计划资助项目~~
