地月平动点导航影响因素仿真分析

本文在研究平动点轨道特性的基础上，对采用单链测距的卫星自主导航定位方法进行了分析。建立了平动点卫星轨道和绕月卫星轨道的模型，采用扩展卡尔曼滤波方法，通过测距数据估计，实现两个卫星位置的确定。验证了该方法的可行性。初步分析了不同测距误差、不同初始偏差、不同平动点卫星轨道初值等因素对自主导航定位效果的影响。

Simulation Analysis of Factors Affecting Navigation of Earth-Moon Libration Point

On the basis of the research on the orbit characteristics of the libration point, this paper analyzes the positioning method of using single chain ranging to realize satellite autonomous navigation. Established the libration point orbit and lunar orbit model, adopting Extended Kalman Filter method, through the range data estimation, implement two satellites'' position determination. Verify the feasibility of the method. Different range error, different initial deviation, different libration orbit are analyzed about the way to affect autonomous navigation positioning