基于理想视线的弹道成型最优导引律

doi:10.3969/j.issn.1000-1093.2014.08.010

兵工学报 ›› 2014, Vol. 35 ›› Issue (8): 1200-1204.doi: 10.3969/j.issn.1000-1093.2014.08.010

基于理想视线的弹道成型最优导引律

李浩, 佘浩平

(北京理工大学宇航学院，北京 100081)

收稿日期:2013-11-19 修回日期:2013-11-19 上线日期:2014-11-03
作者简介:李浩(1990—)，男，硕士研究生
基金资助:
北京高等学校青年英才计划项目（YETP1195），北京理工大学基础研究基金项目（20120142011）

Trajectory Shaping Guidance Law Based on Ideal Line-of-sight

LI Hao, SHE Hao-ping

（School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081,China）

Received:2013-11-19 Revised:2013-11-19 Online:2014-11-03

摘要/Abstract

摘要： 寻的导弹在追踪目标的过程中，常遇到由于背景过于复杂而锁定目标失败的情况，例如在导弹下视攻击低空目标时，强地面背景和地杂波干扰常常导致导弹无法正常截获或跟踪目标。提出一种以理想视线为控制目标的建模方法，并在约束终端弹目相对运动方向和弹道过载的基础上，设计了一种弹道成型最优导引律。该导引律并不直接控制终端相对速度矢量，只在所设定的理想视线的垂直方向上进行控制，从而导引律形式更简单，扩展性更强。通过数字仿真表明，所设计的导引律能够较好地实现末端弹道成型要求，并且过载分配更为合理，可有效减小地面背景和地杂波干扰对导引头截获跟踪的影响。

关键词: 控制科学与技术, 最优导引律, 弹道成型, 理想视线, 过载优化

Abstract: When a homing missile tracks a target, it may fail to lock the target because of complicated background. For example, when a missile attacks a target in look-down mode, the missile’ capability of intercepting or acquiring a target is weakened by complicated surface background and clutter. A new modeling method which regards the ideal line-of-sight as the control objective is put forward. And an optimal guidance law is designed based on restraining the terminal direction of relative motion between missile and target and the trajectory overload. The guidance law is used to control the motion of missile in a direction vertical to ideal line-of-sight. The simulation result shows that this method can meet the requirement of terminal trajectory shaping better, distribute the overload more reasonably and decrease the influence of ground background and clutter on target tracking effectively.

Key words: control science and technology, optimal guidance law, trajectory shaping, ideal line-of-sight, optimized acceleration

中图分类号:

TP273.3

李浩, 佘浩平. 基于理想视线的弹道成型最优导引律[J]. 兵工学报, 2014, 35(8): 1200-1204.

LI Hao, SHE Hao-ping. Trajectory Shaping Guidance Law Based on Ideal Line-of-sight[J]. Acta Armamentarii, 2014, 35(8): 1200-1204.

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基于理想视线的弹道成型最优导引律

Trajectory Shaping Guidance Law Based on Ideal Line-of-sight

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