摘要
比较了广播星历和精密星历的差异,利用两种星历对某港区GPS控制网外业观测数据进行处理,分析了广播星历和精密星历对GPS网基线解算和网平差的影响。结果表明,常规短基线GPS控制网,完全可以用广播星历代替精密星历进行后处理解算,获取高精度的后处理结果。
The differences between broadcast ephemeris and precise ephemeris are compared,Using two kinds of ephemeris to deal with the observation data of GPS control network,and this paper analyzes the influence of broadcast ephemeris and precise ephemeris on the baseline compution and adjustment of GPS network.The results show that we could obtain high precision post-processing results using the broadcast ephemeris replace the precise ephemeris in the post-processing for conventional short baseline GPS control network.
出处
《北京测绘》
2017年第3期5-8,共4页
Beijing Surveying and Mapping
关键词
广播星历
精密星历
基线解算
网平差
broadcast ephemeris
precise ephemeris
baseline computation
adjustment of network
