基于X射线脉冲星的Halo轨道卫星自主导航和控轨

讨论x射线脉冲星自主导航（X—raypulsar-basedautonomousnavigation，XNAV）技术应用于halo轨道卫星的可行性。给出halo轨道卫星的6维状态方程和基于x射线脉冲星导航的6维观测方程，对用x射线脉冲星导航和小推力方法控轨后的日地系第一平动点halo轨道卫星进行了数值模拟。结果表明：在现有的测量精度下，可以将卫星保持在标准轨道附近。最后对实验参数数值的选择给出了相应的分析讨论。

Navigation and Orbit Control of Satellites in Halo Orbits Based on X-ray Pulsars

The feasibility of application of X-ray pulsar-based autonomous navigation （XNAV） to satellites in halo orbits is discussed . 6-D state equations and 6-D measurement equations based on XNAV are proposed and numerical simulations on XNAV and orbit control by low-thrust strategy are given. The result shows that satellites can be kept moving in halo orbits around the interior Sun-Earth libration point （L1） under conditions of the present measuring precision. Finally, the choice of the value of the parameters in the experiment is discussed.