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卫星的轨道误差是卫星测控中需加以约定的重要指标之一,其常用的表示方法主要有Kepler轨道根数形式和RTN投影形式。本文推导了RTN形式的卫星位置、速度误差与Kepler根数误差间的关系,给出了近圆轨道中RTN形式位置、速度误差间的定量关系,分析了RTN形式位置误差约束下Kepler根数误差的相关性,并分别给出了验证算例。该结果可用于分析确定卫星轨道误差指标,使其彼此匹配。
The orbit error of satellite is one of the important indexes that need to be agreed in satellite measurement and control. The commonly used methods of representation include Kepler orbital root number form and RTN projection form. In this paper, the relationship between RTN form satellite position, velocity error and Kepler root number error is deduced. The quantitative relationship between RTN form position and velocity error in near circular orbit is given. The Kepler root number error The correlations are given and examples of verification are given respectively. This result can be used to analyze satellite trajectory error indicators to match each other.