导航卫星一般采用近圆轨道,当卫星轨道偏心率或者轨道倾角接近于零时,利用GPS卫星开普勒轨道根数拟合卫星广播星历会出现一些问题。
When their orbit eccentricity or inclination are near zero, some problems may occur when the GPS Kepler orbit elements fitting method is applied to fit their broadcast ephemeris parameters.
本方法具有以下优点: (1)本方法适用于任意偏心率的卫星轨道。
This method has following advantages: (1)The method is useful for satellite orbit of any eccentricity.
并且根据卫星群偏心率与倾角综合的分离思想,讨论了两种策略,使得卫星群的构形可通过每个成员的轨道要素简单表出。
The satellites follow a combined eccentricity and inclination vector separation strategy, so that the group geometry can be expressed simply by the orbital elements of each member.
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