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兵工学报 ›› 2015, Vol. 36 ›› Issue (4): 660-667.doi: 10.3969/j.issn.1000-1093.2015.04.013

• 论文 • 上一篇    下一篇

考虑自动驾驶仪特性的自适应模糊动态面滑模制导律设计

商巍, 唐胜景, 郭杰, 马悦悦, 张尧   

  1. (北京理工大学 飞行器动力学与控制教育部重点实验室, 北京 100081)
  • 收稿日期:2014-04-30 修回日期:2014-04-30 上线日期:2015-06-02
  • 作者简介:商巍(1989—),男,博士研究生
  • 基金资助:
    国家自然科学基金项目(11202024)

Design of Adaptive Fuzzy Dynamic Surface Sliding-mode Guidance Law Considering Autopilot Lag

SHANG Wei, TANG Sheng-jing, GUO Jie, MA Yue-yue, ZHANG Yao   

  1. (Key Laboratory of Dynamics and Control of Flight Vehicle, Ministry of Education, Beijing Institute of Technology,Beijing 100081, China)
  • Received:2014-04-30 Revised:2014-04-30 Online:2015-06-02

摘要: 针对导弹拦截高机动性目标的问题,基于自适应模糊逼近策略和动态面滑模控制思想,提出了一种新型的拦截制导律。建立了考虑自动驾驶仪动态延迟特性的弹目相对运动方程,以零化视线角速率为出发点,设计了基于自适应趋近率的动态面滑模制导律,同时设计了综合视线角速率以及弹目距离的自适应模糊方法,对变结构项进行逼近。仿真结果表明,针对高机动性目标,该制导方法能够有效地去除抖振,并且具有良好的制导精度。针对导弹拦截高机动性目标的问题,基于自适应模糊逼近策略和动态面滑模控制思想,提出了一种新型的拦截制导律。建立了考虑自动驾驶仪动态延迟特性的弹目相对运动方程,以零化视线角速率为出发点,设计了基于自适应趋近率的动态面滑模制导律,同时设计了综合视线角速率以及弹目距离的自适应模糊方法,对变结构项进行逼近。仿真结果表明,针对高机动性目标,该制导方法能够有效地去除抖振,并且具有良好的制导精度。

关键词: 控制科学与技术, 制导律, 自适应模糊逼近, 动态面滑模控制, 自动驾驶仪特性

Abstract: Based on adaptive fuzzy approach strategies and dynamic surface sliding mode control techniques, a novel interception guidance law is proposed for the problem that a missile attacks a high maneuvering target. Relative motion equations of missile and target are established accounting for autopilot lag. Based on the annihilating idea of the missile-target LOS(line-of-sight) angular velocity, a dynamic surface sliding mode guidance law is designed with adaptive reaching law. Meanwhile, the adaptive fuzzy method based on integrated the LOS angular velocity and missile-target distance is adopted to approach variable-structure term. The simulation results show that this law can remove chattering phenomenon. Moreover, this law has higher guidance precision to high maneuvering.

Key words: control science and technology, guidance law, adaptive fuzzy approach, dynamic sliding-mode control, autopilot lag

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