摘要
GPS数据处理中,为使用IGS精密星历获取GPS卫星精确的、更高采样率的轨道位置,必须要对精密星历进行插值。文中介绍拉格朗日插值方法的基本原理,并对其插值结果进行详细的分析讨论,得出几点有益结论。
In GPS data processing,we must interpolate the precise ephemeris provided by IGS for getting precise and more sampling position of GPS satellites.The paper simply introduces the basic principle of Lagrange interpolation;analyses the interpolation results in detail,and also gets some helpful conclusions.
出处
《测绘工程》
CSCD
2011年第5期60-62,66,共4页
Engineering of Surveying and Mapping
关键词
IGS
精密星历
拉格朗日插值
International GPS service(IGS)
precise ephemeris
Lagrange interpolation