北京航空航天大学学报 ›› 2011, Vol. 37 ›› Issue (7): 757-761.

• 论文 •    下一篇

对地观测卫星有限推力快速轨道机动优化方法

余培军, 王维, 李建成   

  1. 宇航动力学国家重点实验室,西安 710043
  • 收稿日期:2010-09-10 出版日期:2011-07-30 发布日期:2011-08-04
  • 作者简介:余培军(1966-),男,河南确山人,研究员,prince_xscc@vip.163.com.

Optimization method of finite thrust emergency orbit maneuver for an earth observation satellite

Yu Peijun, Wang Wei, Li Jiancheng   

  1. School of Aerospace, Northwestern Polytechnical University, Xi-an 710072, China
  • Received:2010-09-10 Online:2011-07-30 Published:2011-08-04

摘要: 研究了对地观测卫星在有限推力作用下,快速轨道机动到目标区域上空的优化算法.分析了任务需求并选取两次点火的变轨方法,使算法更具普适性.推导出考虑J2摄动的三维空间的有限推力动力学方程.使用Lambert方法确定有限推力时间变量的取值范围,并在此基础上使用遗传算法进行优化,最终得到时间最优意义的优化结果.通过一个算例对整个优化算法做了验证.结果表明该算法精度高、计算时间短,适用于快速轨道机动任务.

Abstract: The optimal emergency orbit maneuver method for an earth observation satellite was studied, which uses the finite thrust model. The mission requirement of the emergency orbit maneuver was investigated firstly. A twice orbital maneuver technique was adequately chosen to make the algorithm universal. The finite thrust dynamic equation in the three-dimensional space that considering the J2 perturbation was derived. The time variable-s span was given by solving the Lambert-s problem. The genetic algorithm was used as the optimization method to get a time optimal result. An emulation example was given to verify the method. The result shows the method has a high precise and can be get in a short time so it is available for the emergency orbit maneuver mission.

中图分类号: 


版权所有 © 《北京航空航天大学学报》编辑部
通讯地址:北京市海淀区学院路37号 北京航空航天大学学报编辑部 邮编:100191 E-mail:jbuaa@buaa.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发