双差精密定轨中地面站的选取方法  

The Method of Selecting the Ground Station in Double Difference Orbit Determination

作　　者：曹炳强[1] 成英燕[1] 许长辉[1] 

机构地区：[1]中国测绘科学研究院,北京100830

出　　处：《测绘通报》2017年第4期6-9,34,共5页Bulletin of Surveying and Mapping

基　　金：国家重点研发计划(2016YFB0501405);国家自然科学基金(41374014);国家基础测绘科技项目(2016KJ0205);国家公益性行业专项(B1503)

摘　　要：针对目前全球的地面测站数量多、测站观测数据质量参差不齐及测站地理分布不均的问题,总结了一种测站选取方法。利用该方法编制的测站选取软件对IGS站进行了选择,并根据选得的测站设计了几种定轨试验。结果显示,利用由本文的测站选取方法得到的70个基准站进行定轨时,得到的卫星位置与IGS精密星历在径向、切向、法向偏差均方根分别为1.11、2.19、1.72 cm。验证了本文选站软件的可靠性,避免了选站过程中过多的人为因素,并且在保障精度的前提下提高了定轨效率。Aiming at the problem that there are a lot of ground stations in the world, the uneven quality of the observation stations and the uneven distribution of the stations, this paper summarizes a method of selecting the stations. Based on the method, the station selection software is used to select the IGS stations, and several orbit determination experiments are designed. Results show that the use of station selection method to get 70 base station orbit, the satellite position and IGS precise ephemeris in the radial, tangential amt normal rms deviation are respectively 1. 11, 2.19, 1.72 cm. In this paper, the reliability of the selected station software is verified, and the excessive human factors in the process of selecting stations are avoided.

关 键 词：IGS 选取方法 选取软件 可靠性 定轨效率 

分 类 号：P228[天文地球—大地测量学与测量工程]