Combined Prediction of Earth Orientation Parameters
Combined Prediction of Earth Orientation Parameters
复制标题
地球定向参数联合预测
DOI:
10.1007/978-3-642-29175-3_32
复制
发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Zhou YH
中科院分区:
文献类型:
--
作者:
Xu XQ;Zotov L;Zhou YH
Earth orientation parameters (EOP) are essential for transformation between the celestial and terrestrial coordinate systems, which has important applications in the Earth sciences, astronomy and satellite navigation. The latter cannot be considered as self-reliant without accurate EOP predictions, which, in particular, are required for real-time precise orbit determination. In this paper we firstly describe the principles and analyze the characteristics of several EOP prediction methods. Then, according to the forecast accuracy, the weights are assigned to EOP predictions to get a combined solution. Results show that no single forecasting method is suitable for all the parameters at different time spans. The combined solution integrates advantages of different prediction methods, which avoid the limitations and instability of any of them. The resultant combined prediction is issued to the JPL Earth Orientation Parameters Combination of Prediction Pilot Project (EOPC PPP).
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DOI:
10.2307/2988198
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1978-12
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The Statistician
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