不同截止高度角对短基线高程方向精度的影响

叶克东; 熊永良; 徐韶光; 袁铮

doi:10.13442/j.gnss.1008-9268.2020.06.009

不同截止高度角对短基线高程方向精度的影响

doi: 10.13442/j.gnss.1008-9268.2020.06.009

西南交通大学地球科学与环境工程学院, 成都 611756

基金项目:

国家自然科学基金（41674028）

详细信息

作者简介:
叶克东(1996-),男,硕士研究生,研究方向为高精度GNSS数据处理以及精密单点定位软件开发工作.

熊永良(1964-),男,博士,教授,博士生导师,主要研究方向为GNSS卫星导航定位定轨的研究与教学工作.

徐韶光(1983-),男,博士,讲师,主要从事GNSS精密定位与定轨以及GNSS气象方向的研究和软件开发工作.

通讯作者:
叶克东 E-mail:kedoneyes@gmail.com

中图分类号: P228.4
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出版历程
- 收稿日期: 2020-08-26
- 网络出版日期: 2021-04-09

Analysis of the influence of different elevation mask angle on the accuracy of short baseline elevation direction

Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China

摘要

摘要: 基于2018年美国连续运行参考站（CORS）网，选择长度在11 km左右、测站间高差均不同的4条短基线数据进行实验. 在估计对流层延迟的情况下，通过设置不同的截止高度角进行基线解算，以标准化均方根误差（NRMS）、U分量基线重复性以及基线较差等指标对解算结果进行比较分析. 结果表明：对于测站间高差大于100 m的短基线，截止高度角的选择并不是影响高程方向解算准确性的主要因素；而测站大地高对短基线高程方向解算精度有一定的影响.
- 短基线 /
- 截止高度角 /
- 高程方向精度 /
- 对流层延迟误差 /
- GAMIT
Abstract: Based on the CORS network of the United States in 2018, data from four short baselines with length of about 11 km and different elevation difference between stations are selected for the experiment. In the case of estimating tropospheric delay, the baselines are solved by setting different elevation mask angles, and the results are compared by standardized root mean square error, baseline U-direction repeatability and baseline difference. The analysis results show that for the short baseline with elevation difference more than 100 m, the selection of elevation mask angle is not the main factor affecting the accuracy of elevation direction calculation; and the geodetic height of the station has a certain impact on the accuracy of short baseline elevation direction calculation.
- short baseline /
- elevation mask angle /
- elevation direction accaracy /
- tropospheric delay error /
- GAMIT

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参考文献(17)

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