西安电子科技大学学报 ›› 2021, Vol. 48 ›› Issue (2): 42-48.doi: 10.19665/j.issn1001-2400.2021.02.006

• 雷达技术进展专题 • 上一篇    下一篇

利用幅度重排的机载火控雷达工作模式识别方法

杨秋1,2,3(),顾杰2(),魏平1()   

  1. 1.电子科技大学 信息与通信工程学院,四川 成都 611731
    2.电子信息控制重点实验室,四川 成都 610036
    3.中国人民解放军95786部队,四川 成都 614000
  • 收稿日期:2020-09-02 修回日期:2020-10-28 出版日期:2021-04-20 发布日期:2021-04-28
  • 作者简介:杨 秋(1986—),男,电子信息控制重点实验室博士后,E-mail: yangqiu1105@163.com|顾杰(1974—),男,研究员,博士,E-mail: 13558699175@qq.com|魏平(1966—),男,教授,博士,E-mail: pwei@uestc.edu.cn
  • 基金资助:
    国家自然科学基金(61971103)

Recognition of operation modes of airborne fire control radar using amplitude rearrangement

YANG Qiu1,2,3(),GU Jie2(),WEI Ping1()   

  1. 1. School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China
    2. Science and Technology on Electronic Information Control Laboratory,Chengdu 610036,China
    3. Unit 95786 of PLA,Chengdu 614000,China
  • Received:2020-09-02 Revised:2020-10-28 Online:2021-04-20 Published:2021-04-28

摘要:

快速、准确地识别机载火控雷达的工作模式,特别是含跟踪信号的高威胁工作模式,是夺取机载电子对抗主动权的关键环节。针对已有工作模式识别方法应用条件受限、工程化应用困难等问题,在分析各工作模式信号特点的基础上,提出了一种利用幅度重排的工作模式识别方法。该方法充分利用信号幅度分布特征识别跟踪信号,对信号按幅度大小进行重排,并进行一阶差分化处理,通过检测重排幅度差分的凹口区间,有效地识别出了包含高威胁跟踪信号的搜索加跟踪和单目标跟踪工作模式。仿真试验结果表明,所提方法对脉冲丢失和干扰不敏感,识别准确率较高,且计算简单、运算量小,便于工程化实现。

关键词: 机载火控雷达, 工作模式识别, 幅度

Abstract:

Recognizing the operation modes of airborne fire control radar quickly and accurately,especially in the high threat mod,is the important part of airborne electronic countermeasures.For the restricted application conditions of existing methods,a new method using amplitude rearrangement is proposed in this paper after a large amount of analysis of each mode.This method makes full use of the characteristics of amplitude distribution to identify tracking signals.First,all the signals are rearranged by the size of signal’s amplitude,and then the first-order difference of the rearranged amplitude iscalculated.Finally,the track and search mode and single target tracking mode are recognized effectively according to the special notch character of the rearranged amplitude.Simulation results prove the good real-time and accuracy rate performance of the proposed method.More importantly,the new method is not sensitive to the pulse deletion and interference.Owing to the above advantages,the proposed method has a good potential in the practical engineering application.

Key words: airborne fire control radar, operation modes recognition, amplitude

中图分类号: 

  • TN971.1