| 虚拟格网技术对网络RTK动态定位的影响分析 |
| |
| 引用本文： | 李立弘,史俊波,欧阳晨皓.虚拟格网技术对网络RTK动态定位的影响分析[J].测绘通报,2020,0(5):115-118. |
| |
| 作者姓名： | 李立弘 史俊波 欧阳晨皓 |
| |
| 作者单位： | 武汉大学测绘学院, 湖北 武汉 430079 |
| |
| 基金项目： | 国家自然科学基金（41504027） |
| |
| 摘 要： | 出于面向大并发网络RTK用户的考虑，虚拟格网技术在北斗地基增强系统升级改造中逐步得到推广。本文首先介绍了虚拟格网技术的原理，以千寻北斗地基增强系统为例，研究了虚拟格网技术的实现流程和细节，并分析了千寻北斗地基增强系统虚拟格网在2018年4月和2019年6月的规律。然后针对动态定位应用，研究了虚拟格网点切换对动态定位的影响。结果表明，虚拟格网点切换对动态定位的影响在厘米级，对于车载动态应用，该影响可忽略。本文对于今后北斗地基增强系统的大并发、动态应用具有借鉴意义。
|
| 关 键 词： | 虚拟格网 网络RTK 动态应用 北斗 实时定位 |
| 收稿时间： | 2019-08-01 |
| 修稿时间： | 2020-03-02 |
Analysis of virtual grid technology impact on dynamic positioning of network RTK |
| |
| LI Lihong,SHI Junbo,OUYANG Chenhao.Analysis of virtual grid technology impact on dynamic positioning of network RTK[J].Bulletin of Surveying and Mapping,2020,0(5):115-118. |
| |
| Authors: | LI Lihong SHI Junbo OUYANG Chenhao |
| |
| Institution: | School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China |
| |
| Abstract: | For the consideration of RTK users of large concurrent networks, the virtual grid technology has been gradually generalized in the upgrade of BeiDou ground-based augmentation system. This paper first introduces the principle of virtual grid technology, and takes the Qianxun BDS ground-based augmentation system as an example to study the implementation procedures and details of virtual grid technology. Meanwhile, the rule of the Qianxun BDS ground-based augmentation system virtual grids’ distribution in April 2018 and June 2019 is analyzed in this paper. Then, for the dynamic positioning application, the influence of virtual grid point switching on dynamic positioning is studied. The results show that the effect of virtual grid point switching on dynamic positioning is in the centimeter level, which can be neglected for vehicle dynamic applications. This paper has reference significance for the large concurrency and dynamic application of BDS ground-based augmentation system in the future. |
| |
| Keywords: | virtual grid network RTK dynamic application BeiDou real-time positioning |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《测绘通报》浏览原始摘要信息 |
| 点击此处可从《测绘通报》下载免费的PDF全文 |
|
