用改进的差异演化算法求解双冲量交会问题.pdfVIP

第35卷第91 华中科技大学学报{自然科学版〉 Vol. 35 No.9 20Q7年 9月 J. l-I\l8~h.ong Univ. 01 S口. . Tech. (N8tule Seicnce Edition) Sep. 2007 用改进的差异演化算法求解双;中量交会问题 彭雷戴光明王茂才障方杰 (中国地攻大学(式汉)计算机学院.湖北 武汉 430074) 摘要，推导了在初始海点回定和初始揭ÎiA能不固定两种俏况下航天豁~冲交会向重量的优化模型，确定以燃料 和时间加极作为优化目标.在此基础上，运用改进的差异淡化，事法进行仿真计算.最后从收敛位和使寰的准确 性两个方面对改进的差异演化算法与禁本遗传算法进行比较.研究结果表窃s 改进的爱界演化算法在求解航 天tnlil I交会问题硝具有收敛速度快‘优化能力量豆、算法可霖等优势. 美 • 器.，差异演化算法，遗传算法p 航天苦苦交会g 双冲羹 cp 图分类号: V4 12. 4 1 发直在标iQ.码 :A 交意编号: 1671-4512(2007)090101-03 Solving twφimpulse transfer trajectory problems by . irnproved differential evoJution algorithm Peng Lei Dai G挝atlgming Wang Maocai Chen Fa四gjie (College of Computer , China Univrsity of Geoscìences. Wuhan 430074.China) Ab理1ract， The mode! of rendezvous between two spacecrafts wa.s derivied using two Împu{ses under considering the ínfluence of th e fi rst ímpulse s position or not consideríng. Objective function ís de- signed on the basis of fuel and tiroe. Based on that . an improved differential evolution algorithm is de- signe.d to solve this problem. 1n this paper . the convergence and veracity between the improved differ- eJltial evoJution algoJithm and simple genltic algorithm are compared. The experiment resuJts show that the Împroved differential eVQlution algorithm can carry Out the problem of spacecraft optímal ren- dezvous using two impulses with fast convergence. strong optimiultíon and e卫cellent st3bility. Key words: differential evolution algorhhml gene tlc algorirhm , spacecraft rendezvous ,two ímpulses 研究空伺交会对按中的主主优交会问题在工程 过程中，给定初始时刻岛，交会时刻衍，初始网刻 追踪飞行穆的位素和速度，以及交会对接终止条 上具有重要意义. 离子最优交会问题的复杂笆，利