不同星历的GAMIT高精度基线解算  

GAMIT high-precise baseline solution based on different ephemeris

作　　者：王树东[1] 万军[1,2] 

机构地区：[1]建设综合勘察研究设计院有限公司,北京100007 [2]中国测绘科学研究院,北京100830

出　　处：《导航定位学报》2018年第1期103-107,共5页Journal of Navigation and Positioning

基　　金：住房和城乡建设部软科学研究项目(K8201396);国家科技支撑计划课题(2015BAJ08B00);测绘地理信息公益性行业科研专项经费项目(201512011)

摘　　要：针对高精度导航定位数据处理中的最终精密星历的公布时间会延迟10d左右而导致不能即时满足工程应用的问题,基于GAMIT/GLOBK软件,使用快速精密星历和超快速精密星历代替最终精密星历对实测的CORS站数据进行基线解算,并与使用其他2种星历进行基线解算的精度相比较。实验结果表明在特殊情况下使用这2种星历代替最终精密星历进行基线解算是可行的。Aiming at the problem that the data of final precise ephemeris are usually published 10 dlater in the data processing of high-precise navigation and positioning,leading to the difficulty to meet the real-time requirement of engineering application,the paper proposed to replace the final precise ephemeris with rapid ephemeris and ultra rapid ephemeris based on GAMIT/GLOBK software,in order to implement the baseline solution of the measured CORS data,and comparatively analyzed the accuracy between the solutions with the three ephemeris methods.Experimental result showed that the proposed method could be feasible under specific conditions.

关 键 词：GAMIT 精密星历 快速星历 超快速星历 基线解算 

分 类 号：P228[天文地球—大地测量学与测量工程]