【摘要】 基于航天器相对运动的C-W方程及其解析解,研究了空间相对悬停的脉冲控制方法,给出了相对悬停脉冲控制量的计算方法,降低了对空间悬停任务航天器控制推进系统的要求,有利于工程实现。以两航天器相对轨道机动过程中的碰撞概率计算方法为基础,对相对悬停的轨迹安全风险进行了量化分析。数值仿真算例显示,本文方法可实现圆或近圆参考轨道上的空间相对悬停,且缩短悬停轨道机动周期,有利于悬停效果的提升。悬停相对运动过程中,悬停碰撞概率的极值点与两航天器相对距离的最小值几乎同时出现。更多还原

【Abstract】 Based on the C-W equations and its analytical solutions,the spacecraft impulse relative hovering has been studied. A computation method of orbit-transfer velocity increment for hovering is presented,which is more adaptive for the spacecraft engine system. Based on the calculation method of relative motion collision probability,the hovering trajectory security is analyzed. The numerical simulations show that the introduced impulse hovering method in this paper is feasible and the orbit transfer period reduction can improve the hovering performance. The maximal collision probability during relative hovering and the minimum distance between the two spacecrafts can almost appear at the same time.更多还原