IGS实时产品比较与分析  

COMPARISON AND ANALYSIS OF IGS REAL-TIME PRODUCTS

作　　者：尹倩倩[1,2] 楼益栋[2] 易文婷[2] 

机构地区：[1]武汉大学测绘学院,武汉430079 [2]武汉大学卫星导航定位技术研究中心,武汉430079

出　　处：《大地测量与地球动力学》2012年第6期123-128,共6页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金青年科学基金(40904007);国家863计划项目(2012AA12A202);中央高校基本科研业务费专项(2012618020202)

摘　　要：介绍IGS实时试验计划的发展现状及实时精密产品恢复方法。选取BKG、ESA、GFZ和GMV四个分析中心的实时精密数据,与IGS事后精密轨道和钟差进行对比,分析结果表明实时产品轨道RTN方向精度达厘米级,钟差精度达亚纳秒级。通过PANDA软件,利用IGS实时精密轨道钟差产品对测站ALBH进行动态PPP解算,动态定位精度可达厘米级。The current development of IGS-RTPP （International GNSS Service Real-time al-time products and data recovery are introduced. The real-time precise products from BKG Pilot Project）, its re（ Bundesamt flit Kar- tographie und Geod^isie）, ESA （European Space Agency）, GFZ （Geo Forschungs Zentrum） and GMV（ Guillermo Tobias Gonzdlez）, which are IGS real-time analysis centers, are chosen and analyzed. Taking the IGS final prod- ucts as a reference, the orbit can reach cm-level accuracy while the clock offset sub-nanosecond-level accuracy. The real-time orbit and clock products are taken as the input files of PANDA to do kinematic PPP（ Precise Point Po- sitioning） process at ALBH station with the results showing that the kinematic PPP process can achieve cm-level ac- curacy in both horizontal and vertical direction.

关 键 词：IGS实时试验计划 实时精密轨道 RTCM-SSR 精度分析 动态PPP 

分 类 号：P227[天文地球—大地测量学与测量工程]