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- Title
多分析中心站坐标产品的综合方法研究.
- Authors
陈国; 魏娜; 赵齐乐; 蔡洪亮; 徐天河
- Abstract
This paper first gives a summarization of different combination strategies, and then the combina- tion strategy for station coordinates and earth rotation parameters (ERP) based on solution level is intro- duced. The one-year products from nine analysis centers of International GNSS Service (IGS) are used to validate the combination method. As far as the differences between the combined solutions and the results of IGS are concerned, the combined coordinates, ERP and geocenter motion parameters show well agree- ment with IGS combination. The agreement of coordinate is 0.5 mm and 1.0 mm for horizontal and verti- cal, respectively. While the precision of pole motion and its rate are respectively about 7.0×10-6 ″ and 40.0×10-6 ″/d, and the precision of length of day (LOD) parameter is better than 7.7×10-6 s/d. The im- plemented program of station coordinates and ERP combination will be helpful for the international GNSS monitoring and assessment system (iGMAS) products combination.
- Subjects
EARTH stations; ROTATIONAL motion; MOTION; COORDINATES; MATHEMATICAL combinations
- Publication
Geomatics & Information Science of Wuhan University, 2019, Vol 44, Issue 9, p1289
- ISSN
1671-8860
- Publication type
Article
- DOI
10.13203/j.whugis20170363