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| 引用本文： | 张守建,李建成,邢乐林,侯延辉.????IGS??????????????????????[J].大地测量与地球动力学,2007,27(2):80-83. |
| 作者姓名： | 张守建 李建成 邢乐林 侯延辉 |
| 作者单位： | 1. 武汉大学测绘学院,武汉,430079 2. 中国地震局地震研究所,武汉,430071 3. 西南交通大学力学系,成都,610031 |
| 基金项目： | 国家自然科学基金(40474004) |
| 摘 要： | ?????GPS???????????????????????????????????????????????о???????????????????????????????????????????????????????????廹?????????????????????????????????????????????????????????????????λ????????????????????????????????????о???????????????????????????????????????????????????????λ??? |
| 关 键 词： | IGS ???????? ?????????? ?????????? ????? |
| 文章编号： | 1671-5942(2007)02-0080-04 |
| 修稿时间： | 2006年10月24 |
COMPARATIVE ANALYSIS ON TWO METHODS FOR IGS PRECISE EPHEMERIS INTERPOLATION |
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| Zhang Shoujian,Li Jiancheng,Xing Lelin,Hou Yanhui.COMPARATIVE ANALYSIS ON TWO METHODS FOR IGS PRECISE EPHEMERIS INTERPOLATION[J].Journal of Geodesy and Geodynamics,2007,27(2):80-83. | |
| Authors: | Zhang Shoujian Li Jiancheng Xing Lelin Hou Yanhui |
| Institution: | 1)School of Geodesy and Geomatics, Wuhan University, Wuhan 4300792)Institute of Seismology,CEA,Wuhan\ 430071 3)Department of Mechanics, Southwest Jiaotong University, Chengdu 610031 |
| Abstract: | On the basis of the periodicity of the designed orbit of GPS satellite,trigonometric function polynomial interpolation method is used to interpolate the IGS precise ephemeris.Besides,the accuracies of interpolation and extrapolation of trigonometric function polynomial interpolation are compared with classic Lagrange interpolation.The result indicates that the former can provide higher accuracy and is more stable. |
| Keywords: | IGS precise ephemeris Lagrange interpolation trigonometric function interpolations polynomial |
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