摘要
提出一种长期卫星钟差预报新方法:以天为尺度,利用二阶多项式模型建模并进行长期卫星钟差预报,用拉格朗日插值多项式对预报值进行内插得出最终的预报结果。计算结果表明,该方法能够大幅度提高长期卫星钟差的预报精度。
A new way which can be used to forecast the clock error by the traditional quadratic polynomial model based on the scale of day, then the output values is interpolated by Lagrange interpolation polynomial to form the final forecasting results is proposed. The results show that the new method can significantly improve the accuracy of long-term satellite clock error prediction.
出处
《大地测量与地球动力学》
CSCD
北大核心
2009年第6期97-100,共4页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(40774001
40841021)
国家"863"计划项目(2007AA12Z331)
关键词
拉格朗日插值
二次多项式
灰色模型
卫星钟差
钟差预报
Lagrange interpolation
quadratic polynomial
grey model
satellite clock error
clock error forecasting
