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兵工学报 ›› 2014, Vol. 35 ›› Issue (11): 1790-1798.doi: 10.3969/j.issn.1000-1093.2014.11.009

• 论文 • 上一篇    下一篇

基于扰动观测器的导引头隔离度抑制方法研究

徐娇1, 王江1, 宋韬1, 胡宽容2   

  1. (1.北京理工大学 宇航学院, 北京 100081; 2.西北工业集团有限公司, 陕西 西安 710043)
  • 收稿日期:2013-11-26 修回日期:2013-11-26 上线日期:2015-01-05
  • 作者简介:徐娇(1988—)女硕士研究生
  • 基金资助:
    国家自然科学基金项目(61172182); 北京理工大学基础研究基金项目(20130142017); 高动态导航技术北京市重点实验室开放 课题项目(HDN201403)

A Disturbance Observer-based Inhibition Method for Disturbance Rejection Rate of Seeker

XU Jiao1, WANG Jiang1, SONG Tao1, HU Kuan-rong2   

  1. (1.School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081,China;2.Northwest Industries Group Co., Ltd, Xi'an 710043, Shaanxi, China)
  • Received:2013-11-26 Revised:2013-11-26 Online:2015-01-05

摘要: 干扰力矩引起的平台导引头隔离度不仅会影响导引头输出精度,还会增加导弹制导系统脱靶量。针对隔离度对导弹制导精度带来的严重问题,设计了基于扰动观测器(DOB)的隔离度在线抑制算法,并分别研究了导引头建模误差、探测器输出频率以及测量噪声对隔离度抑制效果的影响。研究结果表明:基于DOB的隔离度抑制算法能够有效实现对隔离度的在线抑制,但导引头建模误差、探测器输出频率以及测量噪声会一定程度降低隔离度的抑制效果。

关键词: 兵器科学与技术, 平台导引头隔离度, 干扰力矩, 脱靶量, 扰动观测器, 在线抑制

Abstract: The disturbance rejection rate (DRR) of seeker has the effect on the output accuracy of seeker and the guidance performance.An online inhibition method based on disturbance observer is proposed for the problems of the guidance precision of missile caused by DRR. The errors of seeker models, the output frequency of detector and the effect of measurement noise on DRR inhibition are presented. The result shows that the spring torque and the damping torque are the main factors of the DRR generation, and the missile guidance precision would be reduced. The online inhibition method based on disturbance observer can inhibit DRR effectively; but the errors of seeker models, the output frequency of the detector and the measurement noise reduce the inhibition effects to some extent.

Key words: ordnance science and technology, disturbance rejection rate, disturbance torque, miss distance, disturbance observer, online inhibition

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