关键词: 航天器轨道转移, 燃料时间, 双冲量变轨, 分布估计算法

Abstract: With diversiform needs of space missions, not only minimizing fuel is required for the spacecrafts interception and orbit transformation, but minimizing time is also required. The optimization of near range orbit maneuver time-energy is studied. By means of linear C-W equations, the characteristic velocity is derived for the on-orbit servicing spacecraft using two-impulse orbit. By analyzing the impact of single and mixed index on the system, the relations between time and energy under the mixed index are obtained. The goal is to minimize the weighted sum of energy and time. Based on EDA, the optimal energy and the time are found. As a result, accurate numerical simulation of optimal index in near range is realized. From the numerical results and comparison between these results, some conclusions of significance are drawn, which can provide reference for the following research.

Key words: spacecraft orbit maneuver, time and energy, two impulses orbit maneuver, Estimation of Distribution Algorithm（EDA）