| 基于Legendre伪谱法的远程最优拦截初制导方法 |
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| 引用本文： | 谭丽芬,闫野,周英,唐国金. 基于Legendre伪谱法的远程最优拦截初制导方法[J]. 系统工程与电子技术, 2011, 33(6): 1337-1341. DOI: 10.3969/j.issn.1001-506X.2011.06.27 |
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| 作者姓名： | 谭丽芬 闫野 周英 唐国金 |
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| 作者单位： | 国防科学技术大学航天与材料工程学院, 湖南 长沙 410073 |
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| 基金项目： | 国家高技术研究发展计划(863计划)资助课题 |
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| 摘 要： | 考虑J2摄动,研究远程最优拦截初制导问题。针对远程拦截飞行时间长的特点,深入分析并改进一种固定时间拦截制导的摄动修正方法,提出J2摄动远程脉冲最优拦截策略。基于一种求解最优控制问题的新方法--Legendre伪谱法（Legendre pseudospectral method, LPM）,研究有限推力远程最优拦截初制导问题,给出有限推力远程最优拦截初制导方法。以小倾角大椭圆轨道机动飞行器为对象,进行优化计算。仿真结果说明了本文的最优初制导方法的精度和计算效率。
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| 关 键 词： | 远程最优拦截 有限推力初制导 Legendre伪谱法 椭圆轨道机动飞行器 |
Initial guidance algorithm for long-range optimal intercept problem based on Legendre pseudospectral method |
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| TAN Li-fen,YAN Ye,ZHOU Ying,TANG Guo-jin. Initial guidance algorithm for long-range optimal intercept problem based on Legendre pseudospectral method[J]. System Engineering and Electronics, 2011, 33(6): 1337-1341. DOI: 10.3969/j.issn.1001-506X.2011.06.27 |
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| Authors: | TAN Li-fen YAN Ye ZHOU Ying TANG Guo-jin |
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| Affiliation: | College of Aerospace and Material Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | Considering the earth's oblateness effect of J2 perturbation,the optimal initial guidance of long-range intercept problem is researched.With the characteristic of long flight time,a disturbed modifying method of fixed-time interception is analyzed and improved,and the impulsive strategy of optimal long-range interception is put forward.The initial guidance algorithm of finite-thrust optimal interception is also studied via an optimal control method-Legendre pseudospectral method(LPM).The precision and effic... |
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| Keywords: | optimal intercept of long-range finite-thrust initial guidance Legendre pseudospectral method(LPM) elliptic orbit maneuver vehicle |
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