东南大学学报（自然科学版）Issue(z2)：365-369,5.DOI:10.3969/j.issn.1001-0505.2013.S2.032
IGS实时产品质量分析及其在实时精密单点定位中的应用
Quality analysis of IGS real-time products and its application in real-time precise point positioning
摘要
Abstract
The recovery method of IGS real-time orbit and clock products is researched, and then the quality of this method, including the stability in obtaining real-time data and precision comparison between IGS ( international GNSS service) real-time and final orbit and clock products, is analyzed. Based on the method, the test of PPP( precise point positioning) is conducted on the 179 global IGS stations using real-time orbit and clock product.The test results show that the acquisition rate of real-time data provided by BKG( federal agency for cartography and geodesy) analysis center can be up to 92.59%, and the orbit precision of radial, tangential, and cross directions are statistically 1.90, 3.15 and 2.47 cm, respectively.The average RMS (root mean square)of real-time product is up to 0.106 ns.The average positioning precision of daily solution along N/E/U directions for 179 global IGS stations are -3.5/-4.2/-9.mm, with the RMS of 10.0/15.2/22.9 mm.The test results indicate that the real-time orbit and clock products can match the positioning requirements of real-time centimeter-level PPP.关键词
IGS实时试验计划/实时PPP/UPthree软件/精度分析Key words
IGS( international GNSS service) real-time pilot project/real-time PPP( precise point positioning)/UPthree software/accuracy analysis分类
天文与地球科学引用本文复制引用
王胜利,王庆,高旺,潘树国,时小飞..IGS实时产品质量分析及其在实时精密单点定位中的应用[J].东南大学学报（自然科学版）,2013,(z2):365-369,5.基金项目
“十二五”国家科技支撑计划资助项目（2012BAJ23B01）． （）
