基于调频斜率变化的ISAR成像干扰方法研究

doi:10.12305/j.issn.1001-506X.2024.11.12

系统工程与电子技术 ›› 2024, Vol. 46 ›› Issue (11): 3703-3714.doi: 10.12305/j.issn.1001-506X.2024.11.12

基于调频斜率变化的ISAR成像干扰方法研究

潘小义¹^,²^,*, 王泉², 顾赵宇¹, 陈吉源¹, 孟晓明³

1. 国防科技大学电子科学学院, 湖南长沙 410073
2. 中国人民解放军95841部队, 甘肃酒泉 735000
3. 陆军装备部驻南京地区军事代表局驻上海地区第二军事代表室, 上海 200031

收稿日期:2022-10-12 出版日期:2024-10-28 发布日期:2024-11-30
通讯作者: 潘小义
作者简介:潘小义 (1986—), 男, 副教授, 博士, 主要研究方向为先进体制雷达对抗、认知电子战
王泉 (1984—), 男, 高级工程师, 博士, 主要研究方向为雷达成像与识别、目标与环境特性
顾赵宇 (1984—), 男, 讲师, 博士, 主要研究方向为雷达干扰技术与应用
陈吉源 (1995—), 男, 博士研究生, 主要研究方向为雷达成像与对抗、阵列设计与处理
孟晓明 (1986—), 男, 工程师, 硕士, 主要研究方向为雷达对抗工程
基金资助:
国家自然科学基金(61890545);国家自然科学基金(61890542);国家自然科学基金(61890540);长沙市杰出创新青年培养计划(kq2209002)

ISAR imaging jamming method research based on frequency modulation slope change

Xiaoyi PAN¹^,²^,*, Quan WANG², Zhaoyu GU¹, Jiyuan CHEN¹, Xiaoming MENG³

1. College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China
2. Unit 95841 of the PLA, Jiuquan 735000, China
3. Shanghai Second Military Representative Bureau, Nanjing Military Representative Office of the Ministry of Army Equipment, Shanghai 200031, China

Received:2022-10-12 Online:2024-10-28 Published:2024-11-30
Contact: Xiaoyi PAN

摘要/Abstract

摘要：

为对抗先进体制逆合成孔径雷达(inverse synthetic aperture radar, ISAR)等成像识别雷达, 提出基于调频斜率变化的ISAR成像干扰新方法。首先, 根据ISAR宽带线性调频(linear frequency modulation, LFM)信号模型及解线频调信号处理流程, 分析调频斜率变化对ISAR成像结果的影响, 揭示其变化特性可用于干扰的基本机理。然后, 利用LFM信号带宽、脉宽在一定范围内伪随机变化, 形成调频斜率伪随机变化的ISAR干扰信号, 与雷达回波信号混合进入雷达接收机形成干扰。最后, 利用仿真实验验证调频斜率变化的影响以及所提干扰方法在ISAR成像干扰方面的有效性。

关键词: 调频斜率, 逆合成孔径雷达干扰, 成像干扰

Abstract:

In order to resist the advanced system inverse synthetic aperture radar (ISAR), an ISAR imaging jamming method based on frequency modulation slope change is proposed. Firstly, the influence of frequency modulation slope change on ISAR imaging is exploited, according to the wideband linear frequency modulation (LFM) signal model and processing flow of dechirping signal, revealing the basic mechanism by which its variation characteristic can be used for jamming. Then, the ISAR jamming signals with pseudo-random change of frequency modulation slope are formed and mixed with radar echo signals into radar, via using the pseudo-random change of the LFM signal bandwidth and pulse width in a certain range. Finally, the influence of frequency modulation slope change and the effectiveness of the proposed jamming method in ISAR imaging jamming are verified by simulation experiments.

Key words: frequency modulation slope, inverse synthetic aperture radar (ISAR) jamming, imaging jamming

中图分类号:

TN974

潘小义, 王泉, 顾赵宇, 陈吉源, 孟晓明. 基于调频斜率变化的ISAR成像干扰方法研究[J]. 系统工程与电子技术, 2024, 46(11): 3703-3714.

Xiaoyi PAN, Quan WANG, Zhaoyu GU, Jiyuan CHEN, Xiaoming MENG. ISAR imaging jamming method research based on frequency modulation slope change[J]. Systems Engineering and Electronics, 2024, 46(11): 3703-3714.

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基于调频斜率变化的ISAR成像干扰方法研究

ISAR imaging jamming method research based on frequency modulation slope change

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