摘要
阐述了GPS精密星历和钟差滑动式内插方法,利用德国GFZ(Geo Forschungs Zentrum)数据中心提供的精密星历和钟差,分析和比较了两种滑动式多项式插值以及线性插值方法,并且探讨了线性插值的适用范围,得出了一些已有文献未论及的结论。
Two common sleek imerpolation methods, Lagrange interpolation and Newton imerpolation, for Precise Ephemeris and clock offset of GPS satellite are presented. The results calculated by these two methods and linear interpolation method show that the sleek algorithm can get higher precision. Additionally, Newton interpolation and linear interpolation can obtain the same precision efficiently for interpolating precise ephemeris and clock offset in practice.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2006年第6期516-518,556,共4页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(4047400940204001)
中国科学院知识创新工程资助项目(030185)
关键词
精密星历
钟差
滑动式内插
线性插值
precise ephemeris
clock offset
sleek interpolation
linear interpolation
