A new interpolation method based on satellite physical character in using IGS precise ephemeris

被引：1
|
作者：
Liu Weiping [1 ]
Hao Jimning [1 ]
机构：
[1] Informat Engn Univ, Sch Nav & Aerosp Engn, Zhengzlwu 450001, Peoples R China
来源：
GEODESY AND GEODYNAMICS | 2014年 / 5卷 / 03期
关键词：
precise ephemeris; interpolation; trigonometric interpolation; coordinate transformation; physical character;
D O I：
10.3724/SP.J.1246.2014.03029
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Due to the deficiency of sliding lagrange polynomial interpolation, the author proposes a new interpolation method, which considers the physical character of satellite movement in coordinate transformation and reasonable selection of interpolation function. Precision of the two methods is compared by a numerical example. The result shows that the new method is superior to the sliding lagrange polynomial interpolation in interpolation and extrapolation, especially in extrapolation that is over short time spans.
引用
收藏
页码：29 / 33
页数：5
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