| 基于IGS超快速星历的高精度实时GPS测量 |
| |
| 引用本文： | 宋佩颖,丁晓光.基于IGS超快速星历的高精度实时GPS测量[J].测绘工程,2009,18(4):17-20. |
| |
| 作者姓名： | 宋佩颖 丁晓光 |
| |
| 作者单位： | 1. 西安测绘信息技术总站,陕西,西安,710054
2. 陕西省地震局,陕西,西安,710068 |
| |
| 摘 要： | IGS的几种星历产品中，精密星历精度虽然高，但不能实时获得，并且它是影响高精度实时测量应用的主要因素。讨论几种星历产品数值上的差异，在实际计算中使用超快预报星历替代精密星历，并比较它们基线解算结果和天顶延迟解算结果。结果证明：两种星历计算的基线差别非常小，因此，在高精度GPS数据处理中可以直接使用超快预报星历，得到高精度的实时坐标。同样可以应用在GPS气象中，用超快事后星历实现对流层实时监测。
|
| 关 键 词： | IGS 超快速星历 实时 高精度 GPS |
The application of IGS Ultra-rapid ephemeris in high-precision real-time GPS survey |
| |
| SONG Pei-ying,DING Xiao-guang.The application of IGS Ultra-rapid ephemeris in high-precision real-time GPS survey[J].Engineering of Surveying and Mapping,2009,18(4):17-20. |
| |
| Authors: | SONG Pei-ying DING Xiao-guang |
| |
| Institution: | SONG Pei-ying, DING Xiao-guang(1. Xi＇an Information Division of Surveying and Mapping, Xi＇an 710054, Chinas2. Earthquake Administration of Shanxi Prov ince, Xi＇an 710068, China) |
| |
| Abstract: | In the products of IGS, the precision of final ephemeris is the highest among the products of IGS, but it＇s not real-time and has influenced the application. After discussing the differences of products in num, this paper uses ultra-rapid ephemeris instead of final-ephemeris, and compares their results. The results show that the GPS baselines are very closely by using the two kinds of ephemeris, therefore in GPS data processing, we can use ultra-rapid ephemeris directly, and the high-precision real-time position can be gotten. In the application of GPS- meteorology, ultra-rapid ephemeris can be used to real-time tropospheric monitoring. |
| |
| Keywords: | IGS GPS |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
