关键词: 多圈Lambert问题, 解集分布, 二层优化, 智能算法

Abstract: Manifold algorithms on loopy Lambert problem have some limitation， such as low accuracy and hardly programming． By using the distribution characteristics of the solutions，the algorithm is improved． The achieved Matlab program can run at any moment， which offers the necessary condition for the development of loopy Lambert transfer． As an example, when two moving points rendezvous in space， a twolayer optimal model of transfer orbit is established and the corresponding solution is proposed combining with an intelligent algorithm． Finally， two application examples show that the program is correct and valid．