基于间歇采样转发的机载干涉仪稳定虚假目标生成方法

doi:10.12305/j.issn.1001-506X.2026.02.07

系统工程与电子技术 ›› 2026, Vol. 48 ›› Issue (2): 447-455.doi: 10.12305/j.issn.1001-506X.2026.02.07

• 传感器与信号处理 • 上一篇

基于间歇采样转发的机载干涉仪稳定虚假目标生成方法

赵琦(), 卢中昊, 殷加鹏(), 胡卫东, 肖顺平

国防科技大学电子科学学院，湖南长沙 410073

收稿日期:2024-09-11 修回日期:2024-11-25 出版日期:2025-03-26 发布日期:2025-03-26
通讯作者: 殷加鹏 E-mail:z_q0305@nudt.edu.cn;jiapeng.yin@hotmail.com
作者简介:赵　琦（2000—），女，硕士研究生，主要研究方向为新体制雷达与智能电子防御
卢中昊（1983—），男，副教授，博士，主要研究方向为雷达电子对抗
胡卫东（1967—），男，教授，博士，主要研究方向为雷达信息处理与目标识别、多源信息融合
肖顺平（1964—），男，教授，博士，主要研究方向为雷达系统建模仿真、雷达极化信息处理
基金资助:
国家自然科学基金（62071473）资助课题

A stable false target generation method for airborne interferometer based on interrupted-sample forwarding

Qi ZHAO(), Zhonghao LU, Jiapeng YIN(), Weidong HU, Shunping XIAO

College of Electronic Science and Technology，National University of Defense Technology，Changsha 410073，China

Received:2024-09-11 Revised:2024-11-25 Online:2025-03-26 Published:2025-03-26
Contact: Jiapeng YIN E-mail:z_q0305@nudt.edu.cn;jiapeng.yin@hotmail.com

摘要/Abstract

摘要：

针对干扰机载干涉仪测角定位场景，目前尚未有能够形成稳定的虚假目标的方法。针对这一问题，提出一种干涉仪稳定虚假目标生成方法，即利用间歇采样转发技术实现转发源与辐射源信号相干，并通过相位、幅度调制与延迟转发使两信号准同步到达干涉仪接收端。首先建立双点源生成稳定虚假目标的合成信号数学模型，获取影响干涉仪测角结果的因素并仿真分析。然后提出稳定虚假目标生成步骤，并针对单/双站定位具体场景进行分析。最后仿真对比采用非调制双点源信号与采用所提方法的测角结果，分析单/双站定位下生成稳定虚假目标的能力。所提方法在工程限制条件下，控制误差约为1 km，稳定概率可达97.5%，理论上可以精确控制稳定虚假目标。

关键词: 相干干扰, 角度欺骗, 虚假目标

Abstract:

For the scenario of interfering with airborne interferometer direction-finding and localization, there is no method yet to form stable false target. To address this problem, an interferometer stable false target generation method is proposed, i.e., using interrupted-sampling forwarding technique to achieve coherence between the forwarding source and the radiation source signal, and making the two signals quasi-synchronously arrive at the receiving end of the interferometer through amplitude and phase modulation and delayed forwarding. Firstly, the synthetic signal mathematical model of dual-point source generating stable false target is established, and the factors that affect the interferometer angle measurement results are obtained and analyzed in simulation. Then the stable false target generation steps are proposed and analyzed for specific scenarios of single/dual-site localization. Finally, the angle measurement results with using unmodulated dual-point source signals and the proposed method are simulation compared, and the ability to generate stable false targets under single/dual-site localization is analyzed. Theoretically, it is possible to accurately control the stable false target, subject to engineering constraints, with control errors on the order of kilometers and stabilization up to 97.5%.

Key words: coherent interference, angle deception, false target

中图分类号:

TN 972+.1

赵琦, 卢中昊, 殷加鹏, 胡卫东, 肖顺平. 基于间歇采样转发的机载干涉仪稳定虚假目标生成方法[J]. 系统工程与电子技术, 2026, 48(2): 447-455.

Qi ZHAO, Zhonghao LU, Jiapeng YIN, Weidong HU, Shunping XIAO. A stable false target generation method for airborne interferometer based on interrupted-sample forwarding[J]. Systems Engineering and Electronics, 2026, 48(2): 447-455.

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参数名称	符号	取值
转发源附加相位差/rad	Φ_J	π/6
两源幅度比	A	0.9
基波比	D/λ	1/2
辐射源角度/（°）	θ_E	20
转发源角度/（°）	θ_J	−10

参数名称	符号	取值
机载干涉仪起始位置/km	P_I0	（−10, −50）
机载干涉仪速度/（m/s）	v	110
辐射源位置/km	P_E	（−3, 8）
转发源位置/km	P_J	（5, 0）
虚假目标1位置/km	P_F1	（−1, −5）
虚假目标2位置/km	P_F2	（3, 4）
载频/MHz	f_c	200
辐射源信号脉宽/μs	pw	15
辐射源脉冲重复周期/μs	PRI	80
辐射源初相/rad	Φ₀	π/6
干涉仪基线长度	D	λ/2
转发源附加相位差/rad	Φ_J	π/3
信噪比/dB	SNR	20
转发源信号脉宽/μs	pw_J	pw/2
转发处理时间/μs	t_p	3

参数名称	符号	取值
机载干涉仪1起始位置	P_I10	（−10, −50）
机载干涉仪2起始位置	P_I20	（0, −50）
辐射源位置	P_E	（−3, 8）
转发源1位置	P_J1	（5, 0）
转发源2位置	P_J2	（−5, 3）
虚假目标位置	P_F	（0, −5）

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基于间歇采样转发的机载干涉仪稳定虚假目标生成方法

A stable false target generation method for airborne interferometer based on interrupted-sample forwarding

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