邢世其1,,,
刘业民2,,
李永祯1,,
肖顺平1,
1.国防科技大学 电子信息系统复杂电磁环境效应国家重点实验室 长沙 410073
2.中国人民解放军第32579部队 桂林 541001
基金项目:国家自然科学基金(61971429, 61901499)
详细信息
作者简介:黄大通(1993–)，男，博士研究生，主要研究方向为合成孔径雷达信号处理与对抗。E-mail：huangdatong68@163.com
邢世其(1984–)，男，副研究员，主要研究方向为极化雷达成像、雷达信号处理以及合成孔径雷达对抗。E-mail: xingshiqi_paper@163.com
刘业民(1982–)，男，博士，工程师，主要研究方向为雷达干扰与反干扰、极化雷达信号处理。E-mail: liuyemin2@163.com
李永祯(1977–)，男，研究员，博士生导师，主要研究方向为极化雷达与电子对抗。E-mail: e0061@sina.com
肖顺平(1964–)，男，教授，博士生导师，主要研究方向为极化信息处理、电子仿真与雷达目标识别、雷达电子对抗。E-mail: xiaoshunping_nudt@163.com
通讯作者:邢世其 xingshiqi_paper@163.com
责任主编：周峰 Corresponding Editor: ZHOU Feng中图分类号:TN95
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被引次数:0
出版历程
收稿日期:2020-07-07
修回日期:2020-09-17
网络出版日期:2020-10-07
Fake SAR Signal Generation Method Based on Noise Convolution Modulation
HUANG Datong1,,XING Shiqi1,,,
LIU Yemin2,,
LI Yongzhen1,,
XIAO Shunping1,
1. State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, National University of Defense Technology, Changsha 410073, China
2. Unit 32579 of the PLA, Guilin 541001, China
Funds:The National Natural Science Foundation of China (61971429, 61901499)
More Information
Corresponding author:XING Shiqi, xingshiqi_paper@163.com
摘要
摘要:针对传统噪声卷积调制的合成孔径雷达(SAR)虚假信号方法存在距离向位置滞后、方位向压制范围不可控的缺陷，该文提出了一种改进的虚假信号生成方法。该方法首先对截获信号作快时间域移频调制，以控制掩护面的距离向位置；接着将其与经过了慢时间域滤波处理的噪声模板卷积，以控制掩护面积。理论分析与仿真结果表明，相比于传统噪声卷积调制，该文所提的方法可有效控制掩护面的距离向位置和面积，即使在较大侦察误差下仍能对局部场景实施掩护，提高了相同条件下的干扰能量利用率，对实际工程应用具有一定的参考价值。
关键词:合成孔径雷达/
噪声卷积调制/
移频调制/
慢时间滤波/
相参压制
Abstract:Suppression position of the traditional noise convolution modulation Synthetic Aperture Radar (SAR) jamming lags behind in range and suppression area in azimuth is uncontrollable. Considering this defect, an enhanced jamming method is proposed herein. First, the frequency of the intercepted signal is shifted in fast-time to control the suppression position in range. Then, the convolution with the noise is implemented, which has been filtered in slow-time, to control the suppression area in azimuth. Theoretical analysis and simulation results demonstrate that the proposed jamming method can efficiently control the jamming position in range and suppression area when compared with the traditional noise convolution modulation jamming. Even if some reconnaissance errors exist, the local scenario can still be shielded effectively. Furthermore, the utilization efficiency of jamming energy is also improved under the same condition, which will provide some reference values and inputs for engineering applications.
Key words:Synthetic Aperture Radar (SAR)/
Noise convolution modulation/
Frequency shift modulation/
Slow-time filtering/
Coherent suppression
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