多脉冲C-W交会的优化方法

在航天器的近距离交会中,常采用C-W交会的方法.本文发展了多脉冲C-W交会.建立了一般情况下的优化模型,并进行了分析.为了减少优化变量,提出了三种速度脉冲施加模式：切向、径向、变径向.提出了一种简单的误差修正方法：通过修正计算的目标位置而减小仿真误差.在实际算例中采用了遗传算法.针对多个初始状态,不同的脉冲次数进行了仿真计算,并与文献中的算法进行了对比,精度有了进一步的提高,结果证明优化模型是可行的,可以应用于多种情况.

Optimization Methods of Multi-Pulse C-W Rendezvous

C-W rendezvous is frequently used at the short range rendezvous of spacecraft.Theory of multi-pulse C-W rendezvous is developed.Optimization model for general case is established and analyzed.To reduce the number of optimal variables,three modes of producing velocity pulse are considered: tangential direction,radial direction and pseudo radial direction.A simple method of error correction is presented for the results of calculation: reduce the simulation error by modifying the target position of calculation.In actual examples genetic algorithms is applied.Simulation is calculated for some initial states and various palse numbers.Precision is improved compared by examples of literature.The results prove that the optimization model is feasible,and it can satisfy various conditions.