| GNSS精密单点定位成果的框架与历元转换方法 |
| |
| 引用本文： | 崔家武,张兴福,王峰,周波阳,魏德宏.GNSS精密单点定位成果的框架与历元转换方法[J].大地测量与地球动力学,2018,38(2):172-175. |
| |
| 作者姓名： | 崔家武 张兴福 王峰 周波阳 魏德宏 |
| |
| 作者单位： | 广东工业大学土木与交通工程学院;广州市城市规划勘测设计研究院; |
| |
| 摘 要： | 虽然GNSS精密单点静态定位精度可达cm级，但其定位成果一般是某一ITRF框架下的平均观测历元时刻的坐标，通过框架及历元转换可获取地面点在任意ITRF框架及历元时刻的坐标。利用APPS、CSRS、GAPS、magicGNSS以及AUSPOS等在线GNSS数据处理软件对93 d的单CORS站数据进行解算，并采用框架及历元转换方法将定位成果转换为CGCS2000坐标（ITRF97框架，2000.0历元）。结果表明，24 h PPP定位结果的平均精度为1.7 cm；采用中国大陆构造环境监测网络提供的ITRF2008框架下的速度场，并利用自然邻点插值法获得该测站点的速度场，再将PPP结果转换为CGCS2000坐标后的精度为1.6 cm。
|
| 关 键 词： | 精密单点定位 框架转换 历元转换 精度分析 |
Method Research on Reference Frame and Epoch Transformation of GNSS Precise Point Positioning Result |
| |
| CUI Jiawu,ZHANG Xingfu,WANG Feng,ZHOU Boyang,WEI Dehong.Method Research on Reference Frame and Epoch Transformation of GNSS Precise Point Positioning Result[J].Journal of Geodesy and Geodynamics,2018,38(2):172-175. |
| |
| Authors: | CUI Jiawu ZHANG Xingfu WANG Feng ZHOU Boyang WEI Dehong |
| |
| Abstract: | Static precise point positioning can reach the centimeter level, but the positioning is an average of many epochs’ coordinates in any ITRF. The point coordinates in any ITRF and epoch can be obtained by the conversion of frame and epoch. In this paper, 93 d of data from the continuously operating reference station are processed by online GNSS data processing software, including APPS, CSRS, GAPS, magicGNSS and AUSPOS. Then, the positioning is converted into the CGCS2000 coordinate system by the conversion of frame and epoch. The results show that the average precision of the PPP results of 24 h is 1.7 cm. When we transform the PPP results of 24 h into CGCS2000 coordinate system with the velocity field in ITRF2008 provided by crustal movement observation network of China and the natural neighbor interpolation method, the transformed precision is 1.6 cm. |
| |
| Keywords: | precise point positioning frame transformation epoch transformation precision analysis |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《大地测量与地球动力学》浏览原始摘要信息 |
| 点击此处可从《大地测量与地球动力学》下载免费的PDF全文 |
