宇航学报

宇航学报 ›› 2016, Vol. 37 ›› Issue (6): 737-743.doi: 10.3873/j.issn.1000-1328.2016.06.014

• 制导、导航与控制 • 上一篇    下一篇

拦截机动目标的运动伪装制导律

高长生，李涧青，荆武兴   

  1. 哈尔滨工业大学航天工程系，哈尔滨150001
  • 收稿日期:2015-07-16 修回日期:2015-10-21 出版日期:2016-06-15 发布日期:2016-06-25
  • 基金资助:

    国家自然科学基金（11572097）；航天科技集团联合创新基金（CASCHIT131C03）

Motion Camouflage Strategy Guidance Law for Intercepting Maneuvering Target

GAO Chang sheng, LI Jian qing, JING Wu xing   

  1. Department of Aerospace Engineering, Harbin Institute of Technology, Harbin 150001，China
  • Received:2015-07-16 Revised:2015-10-21 Online:2016-06-15 Published:2016-06-25

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摘要：

设计了一种基于运动伪装策略的拦截制导律。首先根据弹目相对位置关系得出双二阶动力学模型，依据运动伪装策略的运动特性给出导弹拦截目标的条件。然后利用此条件并结合弹目相对运动关系推导三维空间下的制导律。在推导过程中发现，原来的三维制导律设计可以简化为二维平面内设计，从而降低了设计难度。通过加入对目标机动的估计，给出一种适用于三维空间拦截的二维导引律。最后对该制导律进行仿真校验，并与纯比例导引律进行仿真对比，仿真结果表明所设计的制导律满足制导精度的需求。

关键词: 导弹拦截, 制导律, 运动伪装, 降维设计

Abstract:

An intercept guidance law based on motion camouflage strategy is proposed in this paper. According to the relative position between a missile and a target, the dual second order dynamics model is derived, and the missile interception conditions are given based on this model and the characteristics of the motion camouflage strategy. Then, the three-dimensional guidance law is derived by using the interception conditions and the motion relation of the missile and the target. In the process of derivation, the three-dimensional guidance law can be designed in a two-dimensional plane and the difficulty of guidance law design is reduced. A two-dimensional guidance law for three-dimensional space is derived by introducing the estimation for target maneuver. Finally, the interception simulation for the proposed guidance law is taken and compared with pure proportional guidance. The simulation results demonstrate the accuracy and the effectiveness of the proposed guidance law.

Key words: Missile intercept, Guidance law, Motion camouflage, Dimension-reduction design

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