【作者】 李明涛； 郑建华；

【Author】 Li Mingtao;Zheng Jianhua;National Space Science Center, Chinese Academy of Sciences;Key Laboratory of Electronics and Information Technology for Complex Space Systems,Chinese Academy of Sciences;

【机构】 中国科学院国家空间科学中心； 中国科学院复杂航天系统电子信息技术重点实验室；

【摘要】 研究微纳卫星群从运载火箭分离到形成目标飞行探测构型的构型部署轨迹规划问题。首先基于高斯摄动方程分析了切向和径向变轨的效率,建立了三切向冲量和四切向冲量部署轨迹规划模型,分别利用微分修正算法和遗传算法求解,验证了三切向冲量分离部署的燃料最优性。针对三冲量分离部署的缺点,利用化整为零和轨道调相思想,建立了可重构分离部署轨迹规划模型,并给出解析解。数值仿真表明,存在变轨误差或者错过变轨窗口时,可重构分离部署轨迹能够以极小的代价甚至零燃料实现部署过程的容错重构,大大提升了部署过程的容错性和安全性。更多还原

【Abstract】 This paper studies the formation initialization problem of Nano-satellite clusters after separation from launch vehicle. Firstly, tangential and radial direction maneuver efficiency is analyzed using Gauss perturbation equation. Secondly, three and four tangential impulses formation initialization model are proposed and solved using differential correction and genetic algorithm respectively. The fuel optimality of three impulses formation initialization is validated. To overcome the drawback of three impulses formation initialization, reconfigurable formation initialization model is proposed and solved analytically. Numerical simulations show that very little, even zero fuel is needed to reconfigure the formation initialization using the proposed reconfigurable formation initialization method, when there is maneuver error or maneuver window is missed. Thus the fault tolerance and safety is enhanced using the proposed reconfigurable formation initialization method.更多还原