SAR典型有源干扰仿真与评估方法研究

doi:10.12305/j.issn.1001-506X.2025.12.08

Abstract

Abstract:

To address the problems of scarcity of active jamming synthetic aperture radar （SAR） image data and difficulty in validating anti-jamming target detection algorithms, a typical SAR active jamming multi style unified simulation mathematical model is established. This model enables low-cost, large-scale, and rapid generation of SAR jamming image data in a laboratory environment through echo simulation, jamming simulation, and imaging processing. It can simulate various jamming scenarios and accurately generate jamming near critical targets. Simultaneously, the high resolution SAR images dataset-jamming （HRSID-J） is constructed using this model. A comprehensive evaluation method for jamming effects is proposed, and is validated using HRSID-J. Result indicates that the proposed method fully considering the effects of suppresses and deceives, accurately reflects the jamming impact.

Key words: synthetic aperture radar （SAR）, active jamming, jamming simulation, jamming effect evaluation

CLC Number:

TN 97

Xianwu ZHENG, Hongyan ZHAO, Tian TIAN, Jinwen TIAN. Research on simulation and evaluation method of SAR typical active jamming[J]. Systems Engineering and Electronics, 2025, 47(12): 4068-4077.

Figures/Tables 8

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References 31

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参数	数值
光速${\mathrm{c}}$/（m/s）	3e8
SAR高度$H$/m	1e4
脉冲宽度${T_r}$/s	5e-6
天线孔径长度$D$/m	4
脉冲重复频率${\text{PRF}}$/Hz	100
载波频率${f_0}$/Hz	1e9
飞行速度$v$/（m/s）	100
调频斜率${K_r}$/（Hz/s）	6e12
线性调频率${K_a}$/（Hz/s）	−6.667
多普勒中心频率${f_c}$/Hz	0

干扰样式	参数设置
噪声压制干扰	${U_n}(t)$=0，${U_0}$=50，$ K_{\mathrm{FM}} $=1e9 Hz
固定移频干扰	$\Delta f$=2e6 Hz
随机移频干扰	$\Delta f$=1e6 Hz，$a$=0.5，$b$=3
步进移频干扰/Hz	$\Delta {f_0}$=1e5，${\mathrm{PRF}}$=100，$\Delta f$=1e3
微动调制干扰/m	${R_r}$=30，$L$=90
距离向间歇采样转发干扰	${R_r}$=70 m，${D_r}$=0.3
方位向间歇采样转发干扰	${R_r}$=40 m，${D_r}$=0.3
时频交叉乘积调制欺骗干扰/m	${R_r}$=100，${R_a}$=50

项目	描述
数据规模	50436张SAR图像，149319个船舶实例，44832个干扰实例（8类）
数据来源	基于HRSID数据集仿真生成
数据格式	YOLO格式
图像分辨率	800×800
应用场景	干扰检测、干扰分类、干扰下目标检测

干扰样式	均值	相关系数	结构相似度	精确度P	召回率R	置信度$\theta $
原图	35.81	1.00	1.00	0.946	0.883	—
噪声压制干扰	46.34	0.88	0.83	0.939	0.686	0.00
固定移频干扰	59.07	0.47	0.43	0.82	0.761	0.52
随机移频干扰	66.86	0.53	0.49	0.863	0.713	0.48
步进移频干扰	94.74	0.32	0.26	0.693	0.753	0.78
微动调制干扰	63.96	0.53	0.50	0.829	0.665	0.62
距离向间歇采样转发干扰	42.93	0.67	0.65	0.895	0.749	0.44
方位向间歇采样转发干扰	42.45	0.67	0.65	0.884	0.779	0.44
时频交叉乘积调制欺骗干扰	32.38	0.72	0.72	0.772	0.884	0.93

干扰样式	压制度	欺骗度	综合评价
原图	0.000	0.000	0.00
噪声压制干扰	1.031	0.007	0.007
固定移频干扰	0.782	0.535	0.419
随机移频干扰	1.215	0.487	0.592
步进移频干扰	1.75	0.820	1.435
微动调制干扰	0.986	0.631	0.622
距离向间歇采样转发干扰	0.377	0.443	0.167
方位向间歇采样转发干扰	0.366	0.444	0.162
时频交叉乘积调制欺骗干扰	0.279	0.946	0.264

Research on simulation and evaluation method of SAR typical active jamming

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