| 一种新的IGS精密星历插值算法 |
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| 引用本文： | 刘伟平,郝金明.一种新的IGS精密星历插值算法[J].武汉大学学报(信息科学版),2011,36(11):1320-1323. |
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| 作者姓名： | 刘伟平 郝金明 |
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| 作者单位： | 信息工程大学测绘学院,郑州市陇海中路66号,450052 |
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| 基金项目： | 2010年信息工程大学博士学位论文创新与创优基金资助项目 |
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| 摘 要： | 针对传统的滑动Lagrange多项式插值方法的不足,提出了一种新的顾及卫星实际运动特点的插值方法,并通过算例对比了两种方法的插值精度。结果表明,本文方法具有性能更优的星历内插外推能力,特别是其外推精度要高出传统方法一个数量级。
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| 关 键 词： | 精密星历 内插 三角插值 坐标转换 |
A New Interpolation Method for IGS Precise Ephemeris |
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| LIU Weiping HAO Jinming.A New Interpolation Method for IGS Precise Ephemeris[J].Geomatics and Information Science of Wuhan University,2011,36(11):1320-1323. |
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| Authors: | LIU Weiping HAO Jinming |
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| Institution: | LIU Weiping1 HAO Jinming1(1 Institute of Surveying and Mapping,Information Engineering University,66 Middle Longhai Road,Zhengzhou 450052,China) |
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| Abstract: | Due to the deficiency of moving Lagrange polynomial interpolation,a new interpolation method considering characteristic of satellite movement is introduced.The precisions of the two metho-dsis are compared by a numerical example.The analysis results show that the interpolation and extrapola-tion ability of the new method are better and its extrapolation precision is especially better than the conventional method. |
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| Keywords: | precise ephemeris interpolation trigonometric interpolation coordinate transformation |
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