在轨服务航天器任意轨道主动绕飞

The initiative flyaround of on-orbit-servicing spacecraft in-any-plane

针对在轨服务航天器对目标器进行全方位监测和抢修要求,根据速度脉冲转移算法进行了在轨服务航天器任意轨道的主动绕飞.文中将绕飞轨道周期分为N份,在每份时间内采用速度脉冲转移算法实现预定位置点间位置转移,进而完成整个预定轨道绕飞.接着进行了算法的误差分析,给出了实际选择最少脉冲数的方法以满足预定轨道制导精度.最后进行任意轨道主动绕飞的数学仿真.仿真结果表明该制导算法较常规算法节省能量,能有效地完成任意轨道的主动绕飞.

Focusing on the completely inspection and salvage of target spacecraft, this paper presents an algorithm to enable the on-orbit-servicing spacecraft to circumnavigate a target spacecraft in any plane based on the impulse transfer method. By dividing the specified period into N parts, the impulse transfer method is applied during every part between two specified points until the circumnavigation is accomplished. With the error analysis of algorithm, a method is presented to solve the least pulse number N in the tolerant guidance error. Finally, a simulation is carried out and the results indicate that the guidance algorithm consumes less energy than others and can accomplish the flyaround in any plane efficiently.