摘要
采用Lagrange插值与线性逐次Neville插值两种方法对GPS卫星轨道进行了插值,比较了两种方法的特性及插值精度,结果表明两种方法虽然简单易实现,但当进行高阶插值时,边缘插值区间的精度较低。为解决该问题提出利用高次插值与低次插值相结合的方法进行轨道插值,算例证明,该插值方法可以改善插值精度。
Both the characteristics of other tions. It is concluded from the results that Finally, a new interpolation method Lagrange interpolation and Neville interpolation are compared with each the high-order interpolation is not good enough for high-precise applica- which based on high/low orders to solve this problem is put forth.
出处
《大地测量与地球动力学》
CSCD
北大核心
2011年第4期103-106,共4页
Journal of Geodesy and Geodynamics
基金
国家基础测绘项目(B2551)
