高轨卫星远程抵近轨道优化研究

Study on Trajectory Optimization of Long-Range Proximity for Geosynchronous Earth Orbit Satellites

针对高轨远程转移抵近的机动策略优化问题,使用Pork-chop速度增量等高线图对时间约束内单脉冲Lambert转移进行分析。而后建立多脉冲转移抵近的数学模型,以燃料最省为优化目标,使用差分进化算法(DE)搜寻全局最优解。通过仿真验证在不同脉冲次数、不同时间约束情形下的轨道抵近计算,得出三脉冲转移抵近相对较优的结论。

To optimize the maneuvering strategy of long-range transfer and proximity for geosynchronous earth orbit(GEO)satellites,the single pulse Lambert transfer within time limit is analyzed with contour plots of Pork-chop.A mathematical model of multiple-pulse transfer and proximity is built to find the global optimal solution with the differential evolution(DE)algorithm,taking the minimum fuel as the optimization goal. The trajectory proximity is calculated under different pulse numbers and different time constraints through simulation. The results show that the results of triple-pulse transfer and proximity are relatively optimal.