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

对地观测卫星有限推力快速轨道机动优化方法

宇航动力学国家重点实验室,西安 710043

详细信息

作者简介:
余培军(1966-),男,河南确山人,研究员,prince_xscc@vip.163.com.

中图分类号: V 556
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- 文章访问数: 3384
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- 被引次数: 0
出版历程
- 收稿日期: 2010-09-10
- 网络出版日期: 2011-07-30

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

School of Aerospace, Northwestern Polytechnical University, Xi-an 710072, China

摘要

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.
- 快速轨道机动 /
- 有限推力 /
- Lambert算法 /
- 遗传算法
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.
- emergency orbit maneuver /
- finite thrust /
- Lambert algorithm /
- genetic algorithms

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参考文献(1)

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