小卫星星座自主定轨的论证与仿真

在建立星座自主定轨条件方程的基础上，对其求解的可行性进行了分析、论证和仿真计算。结果表明：在仅考虑一阶摄动理论的情况下，升交点赤经总是秩亏的，即使考虑更精密的摄动模型，其条件方程也近似病态。其它根数在很多情况下也有相关性。因此，为了最大限度地满足自主定轨的要求，在星座结构设计时应尽量考虑不同类型轨道的卫星。

Autonomous Orbit Determination of Micro Satellite Constellations

This paper gives analysis and simulation of problem-solving feasibility based on the conditional equations for establishment of autonomous orbit determination for constellations.The result has shown that the longitude of the ascending node is always singular when only first-order perturbation is taken into consideration.Even if a more precise perturbation model is considered,its condition equation is ill conditioned.Other elements are also correlated in many cases.Therefore,to meet as much requirements as possible for autonomous orbit determination,as much as possible should be taken into consideration for satellites of different orbits in constellation structure design.