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.
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.
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.
Citation: 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.

一种新的IGS精密星历插值算法

A New Interpolation Method for IGS Precise Ephemeris

  • 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。

     

    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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