摘要
分析了几种精密卫星钟差的内插方法,将插值结果和IGS提供的数据相比较,采用统计量和差值图表来显示不同方法的插值结果,得到0.11-0.38 ns的精度。结果表明,内插方案的最佳选择取决于不同卫星钟类型的钟差变化特性以及插值方法本身的特点。
Several methods to interpolate precise GPS satellite clock bias are introduced. The results obtained by interpolation are compared with that from IGS analysis center. Statistical information and diagrams of the differences are extracted. The accuracy is up to 0.1-0.4 ns. The preferable interpolation solution is dependent on characteristics of satellite clock and the feature of the interpolation method.
出处
《测绘信息与工程》
2008年第1期11-13,共3页
Journal of Geomatics
基金
国家"863计划"资助项目(2006AA12Z325)
关键词
精密卫星钟差
线性插值
二项式插值
拉格朗日插值
三次样条插值
precise satellite clock bias
linear interpolation
binomoal interpolation
Lagrange interpolation
cubic spline interpolation
