用切比雪夫曲线拟合导航卫星广播星历

Fitting the Broadcast Ephemeris of Navigation Satellites by Chebshev Approximation

提出用一种基于切比雪夫曲线多项式拟合的方法,来拟合导航卫星广播星历。该方法对解决 GEO导航卫星的小倾角、小偏心率问题特别有效,并具有精度高、使用方便等特点。

A polynomial fitting method, Chebyshev approximation fitting is introduced here to generate the broadcast ephemeris of navigation satellites, which is suitable for small inclination and small eccentricity orbits. High precision and convenience for users are proved to be the outstanding characteristic of this method in this paper.