系统工程与电子技术 ›› 2026, Vol. 48 ›› Issue (10): 3340-3350.doi: 10.12305/j.issn.1001-506X.2026.10.07

• 传感器与信号处理 • 上一篇    

基于时频拉伸变换的间歇采样转发干扰方法

王陶然(), 王福来(), 祝迪(), 邢世其(), 殷加鹏(), 黄晓涛(), 李永祯()   

  1. 国防科技大学电子科学学院,湖南 长沙 410073
  • 收稿日期:2025-06-05 接受日期:2025-09-29 出版日期:2026-10-25 发布日期:2026-09-30
  • 通讯作者: 李永祯 E-mail:wangtaoran24@163.com;wangfulai12@nudt.edu.cn;zhudi21@163.com;xingshiqi1983@126.com;jiapeng.yin@hotmail.com;xthuang@nudt.edu.cn;e0061@sina.com
  • 作者简介:王陶然(2000—),女,博士研究生,主要研究方向为雷达电子对抗
    王福来(1993—),男,助理研究员,博士,主要研究方向为极化雷达信号处理、雷达波形设计与电子对抗
    祝 迪(1996—),男,博士研究生,主要研究方向为极化信息处理、雷达目标超分辨与抗干扰
    邢世其(1984—),男,副研究员,博士,主要研究方向为电子防御
    殷加鹏(1992—),男,副研究员,博士,主要研究方向为极化雷达信号处理、波形对抗
    黄晓涛(1972—),男,教授,博士,主要研究方向为雷达信号处理
  • 基金资助:
    国家自然科学基金(62401579,62471470)资助课题

Intermittent sampling repeater jamming method based on time-frequency stretching transformation

Taoran Wang(), Fulai Wang(), Di Zhu(), Shiqi Xing(), Jiapeng Yin(), Xiaotao Huang(), Yongzhen Li()   

  1. College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China
  • Received:2025-06-05 Accepted:2025-09-29 Online:2026-10-25 Published:2026-09-30
  • Contact: Yongzhen Li E-mail:wangtaoran24@163.com;wangfulai12@nudt.edu.cn;zhudi21@163.com;xingshiqi1983@126.com;jiapeng.yin@hotmail.com;xthuang@nudt.edu.cn;e0061@sina.com

摘要:

针对间歇采样转发干扰存在点假目标串幅度衰减快、空间分布规律性强、对真实目标遮盖性差的问题,提出基于时频拉伸变换的间歇采样转发干扰方法。首先,建立线性调频信号的时频域拉伸变换模型,并基于间歇采样方法,对每段采样脉冲信号进行时频拉伸变换后转发;接着,理论分析占空比和采样周期对干扰的幅度、覆盖范围和空间分布的影响;最后,通过仿真实验验证所提方法的干扰效果。仿真结果表明,相比于传统干扰方法,所提方法能够大幅拓宽干扰范围,灵活高效地形成连片压制干扰或超密集假目标干扰,能够解决干扰滞后的问题。

关键词: 线性调频, 间歇采样转发干扰, 拉伸变换, 多假目标, 压制干扰

Abstract:

To address the problems of the intermittent sampling forwarding jamming, such as false targets have fast amplitude attenuation, strong spatial distribution regularity, and the poor covering ability for the real target, this paper proposes an intermittent sampling repeater jamming method based on time-frequency stretching transformation. Firstly, the time-frequency domain stretching transformation model of linear frequency modulation signals is established. Based on the intermittent sampling method, each sampled pulse signal is forwarded after time-frequency stretching transformation. Secondly, the influences of the duty cycle and the sampling period on the amplitude, coverage range, and spatial distribution of the jamming are theoretically analyzed. Finally, the jamming effect of the proposed method is verified through simulation experiments. Simulation results show that, compared with traditional jamming methods, the proposed method can greatly broaden the jamming range, flexibly and efficiently form contiguous suppression jamming or ultra-dense false targets jamming, and solve the problem of jamming lag.

Key words: linear frequency modulation, intermittent sampling repeater jamming, stretching transformation, multiple false targets, suppression jamming

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