系统工程与电子技术 ›› 2022, Vol. 44 ›› Issue (11): 3397-3402.doi: 10.12305/j.issn.1001-506X.2022.11.14

• 传感器与信号处理 • 上一篇    下一篇

常见SAR相关干扰技术对比分析

杨保平1,*, 魏茂刚2, 鲍志超1, 杨林森2, 王晓玉1   

  1. 1. 航天工程大学士官学校, 北京 102249
    2. 电子信息控制重点实验室, 四川 成都 610036
  • 收稿日期:2021-09-22 出版日期:2022-10-26 发布日期:2022-10-29
  • 通讯作者: 杨保平
  • 作者简介:杨保平(1970—), 男, 教授, 博士, 主要研究方向为电子对抗|魏茂刚(1978—), 男, 研究员, 硕士, 主要研究方向为电子对抗|鲍志超(1991—), 男, 讲师, 博士, 主要研究方向为电子对抗、目标跟踪|杨林森(1988—), 男, 工程师, 博士, 主要研究方向为电子对抗|王晓玉(1991—), 女, 讲师, 博士, 主要研究方向为高功率微波技术与天线

Comparative analysis of common coherent jamming technology against SAR

Baoping YANG1,*, Maogang WEI2, Zhichao BAO1, Linsen YANG2, Xiaoyu WANG1   

  1. 1. School of Non-Commission Officer, Space Engineering University, Beijing 102249, China
    2. Key Laboratory of Electronic and Information Control, Chengdu 610036, China
  • Received:2021-09-22 Online:2022-10-26 Published:2022-10-29
  • Contact: Baoping YANG

摘要:

针对基于数字射频存储(digital radio frequency memory, DRFM)的相关压制干扰技术和基于回波模拟的二维面目标合成孔径雷达(synthetic aperture radar, SAR)干扰技术开展研究, 这两种干扰技术都采用与雷达辐射信号高度相关的干扰信号样式, 具有干扰效率高的优点, 被SAR干扰设备广泛采用。首先, 讨论了SAR雷达点目标和面目标的回波数据模型。然后, 分别讨论了DRFM压制干扰技术和面目标欺骗干扰技术的原理。最后, 利用Matlab对DRFM压制干扰技术和面目标干扰技术进行了仿真, 同时与传统的噪声压制干扰技术一起, 对比分析了干扰的效果, 给出了干扰技术的应用建议。仿真结果表明, 面目标干扰对SAR成像局部干扰更加有效, DRFM压制干扰技术适用于大带宽高分辨SAR成像, 面目标干扰更加广泛应用于SAR欺骗干扰。

关键词: 合成孔径雷达, 数字射频存储, 相关压制干扰, 面目标干扰

Abstract:

This paper studies the jamming technology of synthetic aperture radar(SAR) based on digital radio frequency memory(DRFM) coherent suppression jamming technology, and 2D area target jamming technology based on target echo simulated technology. These two kinds of jamming technologies use jamming signals highly related to radar radiation signals, which have the characteristics of high coherent degree. This paper first discusses the echo data model of SAR radar point target and area target, and then discusses the principles of DRFM coherent suppression jamming technology and 2D area target jamming technology respectively. Finally, the DRFM suppression jamming technology and area target jamming technology are simulated by using Matlab. At the same time, together with the traditional noise suppression jamming technology, the jamming effect is compared and analyzed, and the application suggestions of jamming technology are given. The simulation results show that area target jamming is more effective of SAR image spot jamming. DRFM coherent suppression jamming technology is suitable to SAR image of large bandwidth and high resolution, and area target jamming is more widely used in SAR deception jamming.

Key words: synthetic aperture radar (SAR), digital radio frequency memory (DRFM), correlation suppression jamming, area target jamming

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