电子学报 ›› 2016, Vol. 44 ›› Issue (1): 46-53.DOI: 10.3969/j.issn.0372-2112.2016.01.008

• 学术论文 • 上一篇    下一篇

间歇采样非均匀重复转发实现多假目标压制干扰

张养瑞, 李云杰, 李曼玲, 高梅国, 傅雄军   

  1. 北京理工大学信息与电子学院, 北京 100081
  • 收稿日期:2014-04-24 修回日期:2014-07-29 出版日期:2016-01-25
    • 作者简介:
    • 张养瑞 男.1987年6月出生,山东济宁人,北京理工大学信息与电子学院博士研究生.主要研究方向为对组网雷达协同干扰样式设计、干扰资源调度方法. E-mail:yangruihappy@163.com 李云杰 男.1975年6月出生,陕西西安人,北京理工大学信息与电子学院雷达与对抗研究所副研究员,硕士生导师.主要研究方向为雷达系统及其信号处理、雷达电子侦察与干扰信号处理. E-mail:liyunjie@bit.edu.cn
    • 基金资助:
    • 国家自然科学基金 (No.61271373)

Suppress Jamming Technique of Multiple False Targets on Interrupted-Sampling and Non-Uniform Periodic Repeater

ZHANG Yang-rui, LI Yun-jie, LI Man-ling, GAO Mei-guo, FU Xiong-jun   

  1. School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China
  • Received:2014-04-24 Revised:2014-07-29 Online:2016-01-25 Published:2016-01-25
    • Supported by:
    • National Natural Science Foundation of China (No.61271373)

摘要:

针对采用均值类恒虚警检测方式的线性调频脉冲压缩雷达,本文提出间歇采样非均匀重复转发(ISNPR)实现多假目标压制干扰的方法.首先阐述了间歇采样转发干扰(ISRJ)产生多假目标的机理,同时对多假目标压制干扰的假目标参数进行了推导,包括假目标个数和信噪比.然后结合间歇采样重复转发干扰(ISPRJ)的数学原理,对间歇采样非均匀重复转发干扰(ISNPRJ)的多假目标压制效果进行了理论分析,并推导了干扰机参数如采样脉冲宽度、间歇采样周期、转发脉冲宽度以及发射功率的计算方法.最后对ISNPRJ的多假目标压制效果进行仿真验证,仿真结果表明该方法能够降低雷达对目标的检测概率,实现对雷达检测环节的有效压制.

关键词: 间歇采样, 转发干扰, 恒虚警检测, 多假目标, 压制干扰

Abstract:

A multiple false targets method based on interrupted-sampling and nonuniform periodic repeater jamming (ISNPRJ) and against to the linear frequency modulation (LFM) pulsed radar with mean level (ML) CFAR detector is proposed.Firstly, the principle is illuminated which takes advantage of the interrupted sampling and repeater jamming (ISRJ) to realize the distribution of multiple false targets.After that several key parameters both the number and the SNR of the false targets are derived.Then jamming effectiveness of the ISNPRJ is analyzed on the basis of the mathematics principle of the interrupted-sampling and periodic repeater jamming (ISPRJ), meanwhile, numerical value of the sampling interval, the sampling pulse width, transmitted pulse width and the transmitted power are calculated.Simulation results show that ISNPRJ can reduce the detection probability of target greatly and jam the radar's detector effectively.

Key words: interrupted-sampling, repeater jamming, constant false alarm ratio, multiple false targets, suppress jamming

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