基于二维相位调制的ISAR场景干扰方法

doi:10.12305/j.issn.1001-506X.2026.11.13

摘要/Abstract

摘要：

针对逆合成孔径雷达成像干扰中传统方法难以生成灵活可控的虚假干扰场景的问题，提出一种基于二维相位调制的逆合成孔径雷达场景干扰方法。该方法基于离线干扰调制模板，对干扰模板分别进行二维一阶相位和二阶相位调制，实现对虚假目标的位置移动和能量扩散，达到欺骗干扰和压制干扰的目的；同时进行二维一阶和二阶相位调制，并对多个相位调制模板进行叠加，能够实现欺骗和压制复合干扰的效果。二维相位调制干扰采用实时干扰方式，算法复杂度低。通过仿真验证所提方法的正确性和有效性，能够有效对抗逆合成孔径雷达。

关键词: 逆合成孔径雷达, 二维相位调制, 欺骗干扰, 压制干扰, 场景干扰

Abstract:

To address the problem of traditional methods being difficult to generate flexible and controllable false jamming scenes, a two-dimensional phase modulation based inverse synthetic aperture radar （ISAR） scene jamming method is proposed. This method is based on an offline jamming modulation template, which performs two-dimensional first-order phase and second-order phase modulation on the jamming template to realize position movement and energy diffusion of false targets, achieving the purpose of deception jamming and suppressive jamming. At the same time, two-dimensional first-order and second-order phase modulation are performed, and multiple phase modulation templates are superimposed, which can achieve the effect of deception and suppression of composite jamming. Two dimensional phase modulation jamming adopts real-time jamming method with low algorithm complexity. Simulation verifies the correctness and effectiveness of the proposed method, which can effectively counter ISAR.

Key words: inverse synthetic aperture radar （ISAR）, two-dimensional phase modulation, deceptive jamming, suppression jamming, scene jamming

中图分类号:

TN 972

赵忠凯, 刘德雄. 基于二维相位调制的ISAR场景干扰方法[J]. 系统工程与电子技术, 2026, 48(11): 3811-3822.

Zhongkai Zhao, Dexiong Liu. ISAR scene jamming method based on two-dimensional phase modulation[J]. Systems Engineering and Electronics, 2026, 48(11): 3811-3822.

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$ {k_2} $	仿真数据	理论计算
0	1	1
1	0.44	0.44
2	0.31	0.31
3	0.27	0.25
4	0.26	0.22

参数	仿真数据
信号类型	线性调频
中心频率/GHz	5.52
带宽/MHz	400
脉宽/μs	25.6
脉冲重复周期/μs	500
旋转角速度/（rad/s）	0.14

假目标个数	参数	${k_{11}}$	${k_{12}}$
2	假目标1	−200	200
2	假目标2	200	−200
4	假目标1	−300	300
	假目标2	−300	−300
	假目标3	300	300
	假目标4	300	−300

	中心位置/m	熵	相关系数	SSIM	PSNR/dB
干扰模板	（ 0，0 ）	3.19	1	1	∞
二维相位调制	（150，150）	3.28	0.97	0.91	25.86
	（150，300）	3.28	0.97	0.91	25.86
	（300，300）	3.69	0.96	0.89	24.40

干扰算法	JSR/dB	熵	相关系数	SSIM	PSNR /dB
干扰模板	−∞	3.19	1	1	∞
二维相位调制	10	5.93	0.53	0.65	15.00
	15	6.59	0.41	0.48	10.76
	20	6.61	0.38	0.46	10.76
高斯白噪声	10	5.71	0.92	0.68	24.19
	15	6.11	0.73	0.44	18.23
	20	6.23	0.44	0.30	15.88
调频斜率变化	10	6.04	0.77	0.57	19.62
	15	6.09	0.55	0.38	16.37
	20	6.12	0.39	0.30	15.22
编码相位调制	10	5.92	0.55	0.46	19.76
	15	6.01	0.39	0.40	19.27
	20	6.08	0.24	0.35	18.76