中国科技核心期刊

中文核心期刊

CSCD来源期刊

空间控制技术与应用

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基于C-W制导的瞄准点修正技术

马艳红1,2 胡军1   

  1. 1.北京控制工程研究所,北京 100190;2.空间智能控制技术国家级重点实验室,北京 100190
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-10-25 发布日期:2009-10-25

C-W Guidance-Based Aiming Point Correction Technique

MA Yanhong1,2 , Hu Jun1   

  1. 1. Beijing Institute of Control Engineering, Beijing 100190, China;
    2. National Laboratory of Space Intelligent Control, Beijing 100190, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-10-25 Published:2009-10-25

摘要: 在分析C-W冲量制导误差源的基础上,指出主要摄动为C-W方程的线性化误差,相对J2项摄动误差和发动机的冲量假设误差。在求解得到主要摄动作用下相对运动方程解析解的基础上,提出了瞄准点修正技术,在计算量增加不大的前提下,不仅提高了C-W制导精度,而且实际制导曲线趋近于最优交会轨迹,燃料消耗接近最优解。

关键词: C-W制导, J2项摄动, 瞄准点

Abstract: Based on error analysis of the C-W guidance, the article shows that the main perturbation sources of C-W impulse guidance are linearization error, relative J2 term perturbation, and impulse assumption error of thrusters . When obtaining the analytic solution of perturbed relative motion equation, an aiming point modification technique is induced to improve guidance accuracy at limited increase of computational effort, and the actual rendezvous trajectory and the fuel consumption are close to optimal ones.

Key words: C-W guidance, J2 term perturbation, aiming point

中图分类号: 

  • v448.23