对地侦察卫星星座优化设计及仿真分析  

Optimization design and simulation analysis of earth reconnaissance satellite constellation

作　　者：韦娟[1] 张润[1] 

机构地区：[1]西安电子科技大学通信工程学院,陕西西安710071

出　　处：《西安电子科技大学学报》2013年第2期138-141,147,共5页Journal of Xidian University

基　　金：111资助项目(B08038);中央高校基本科研业务费专项资金资助项目(K50511010022)

摘　　要：研究了一种基于重访周期的低轨道卫星星座以实现对全球间歇性侦察.以近圆回归轨道的设计依赖于轨道高度和轨道倾角两个参数的确定为基础建立星座设计模型.并据此设计了对地侦察任务的单轨道面和三轨道面星座.考虑到以覆盖性能作为目标函数,因此主要选取轨道倾角、轨道面的升交点赤经及轨道面内各卫星之间的相位作为优选变量,基于复形调优法对这两类星座分别进行优化设计.对优化后的星座利用覆盖间隙数目、覆盖百分比、平均响应时间等覆盖性能指标来综合评定其性能.分析结果表明,三轨道面星座性能优于单轨道面,适用于全球对地侦察任务.A low orbit constellation is designed based on the revisiting cycle in order to realize the intermittent reconnaissance to the global region. Firstly, a constellation design model is built based on the orbit height and inclination of the nearly circular reeursive orbit. The single oi＇bit plane and triple orbit plane parameters, which satisfy earth mission, are determined. Then the complex shape optimization method is selected to optimize the two kinds of constellation. Considering the cover performance as the objective function, the orbit inclination, longitude of the ascending node, and inter-satellite phase are selected as optimization variables. Finally, constellation performance is evaluated using the coverage gap number, coverage percentage and average response time. It is shown that the constellation performance of the triple orbit plane is superior to that of single orbit plane, and can fulfill the earth reconnaissance objective.

关 键 词：对地侦察 卫星星座 优化 仿真分析 

分 类 号：V412.4[航空宇航科学与技术—航空宇航推进理论与工程]