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1.中国电子科技集团公司第十研究所,四川成都 610036
2.国防科技大学电子信息系统复杂磁环境效应国家重点实验室,湖南长沙 410073
3.西安电子工程研究所,陕西西安 710100
Received:11 September 2021,
Revised:2022-02-09,
Published:25 September 2023
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黄大通,邢世其,徐伟等.对多通道SAR欺骗干扰抑制的多干扰机协同调幅对抗方法[J].电子学报,2023,51(09):2301-2312.
HUANG Da-tong,XING Shi-qi,XU Wei,et al.A Cooperative Countermeasure of Multiple Jammers Against Multi-Channel SAR Deception Jamming Suppression Based on Amplitude Modulation[J].ACTA ELECTRONICA SINICA,2023,51(09):2301-2312.
黄大通,邢世其,徐伟等.对多通道SAR欺骗干扰抑制的多干扰机协同调幅对抗方法[J].电子学报,2023,51(09):2301-2312. DOI: 10.12263/DZXB.20211247.
HUANG Da-tong,XING Shi-qi,XU Wei,et al.A Cooperative Countermeasure of Multiple Jammers Against Multi-Channel SAR Deception Jamming Suppression Based on Amplitude Modulation[J].ACTA ELECTRONICA SINICA,2023,51(09):2301-2312. DOI: 10.12263/DZXB.20211247.
针对单干扰机生成的假目标会被多通道SAR(Synthetic Aperture Radar)系统抑制的问题,本文提出了基于多干扰机协同调幅的对抗方法.首先对多通道SAR的欺骗干扰抑制原理作了推导和分析,得到了单干扰机欺骗干扰失效的本质原因,在此基础上,建立了多干扰机的协同调制模型,进而推导出其反抑制条件,并且,从理论上详细推导并分析了干扰机数目对反抑制效果的影响情况.仿真结果表明,本文所提的多干扰机协同对抗方法能消除干扰信号的附加相位,使其获得与目标回波相同的雷达处理增益,继而有效反制干扰抑制作用,实现对多通道SAR的欺骗.
Considering the problem that the false target that is produced by single jammer will be suppressed by multichannel synthetic aperture radar (SAR) system
a countermeasure method based on amplitude cooperative modulation of multiple jammers is proposed in this paper. The principle of deception jamming suppression of multichannel SAR is analyzed in detail
making the essential reason why deception jamming of single jammer is ineffective understood. On the basis
the cooperative modulation model of multiple jammers is established and the condition against jamming suppression is deduced. And the influence of jammer number on the proposed method is analyzed theoretically. Simulation results demonstrate that the proposed countermeasure method of multiple jammers in this paper can counteract the extra phase of jamming signal. In this way
the jamming signal can obtain the same processing gain as the echo of real target
effectively offsetting the jamming suppression and making the SAR deceived.
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