轨道改进中插值系数的计算

Computing Interpolation Coefficients for Numerical Orbit Improvement

数值法精密定轨在多步法积分产生轨道和插值法计算观测量和偏导数中,需要反复迭代来完成对航天器的历元状态的微分修正.严格地说插值的使用是合理的,但是重复的插值系数计算,对于有限的计算机资源来说,是一种负担.一次性插值技术的应用。

This is an application of an interpolation art, in which, one can keep and use only one set interpolation coefficients for one station in data processing of numerical orbit improvement. From which, the computing rate of data processing will be risen for some scores times. On the premising of equal time interval in sampling observation, the existence of one set interpolation coefficients per station has been proved easily.