定位卫星轨道监视系统研究

Research on Orbit Surveillance System of Positioning Satellites

与卫星测控中心的卫星轨道参数相比,地球同步卫星定位系统中轨道计算子系统所计算出的卫星星历数据具有实时性强、精度高的特点,如何有效利用该星历数据来分析卫星轨道运行情况是该领域的一个热门研究课题。在介绍卫星轨道测定法的基础上,提出了以卫星速度变化率和卫星星下点为主要监视内容的卫星轨道监视系统,通过系统的试运行结果可以看出,该系统能够有效地监视卫星的瞬时和长期运行情况,为卫星的在轨运行管理提供了一种直观、形象的监视方法。

The satellite ephemeris calculated by orbit determination sub-system in GEO positioning system is more real-time, more accurate than the satellite orbit parameters calculated by satellite Measuring and Control Center. How to make use of the ephemeris to analyze the situation of satellite orbit is one of the hottest research subjects in the field. This paper introduced the method of determining satellite orbits, and proposed a satellite orbit surveillance system mainly comprised of satellite velocity variation ratio and sub-satellite point. From the running result of the system, the instantaneous and long-term state of satellites both can be effectively surveilled, it provides a visualized surveillance method for the management of satellites in orbit.