| 摘要: |
| 为解决单干扰机无法对干涉逆合成孔径雷达(Interferometric Inverse Synthetic Aperture Radar，InISAR)产生三维干扰效果问题，结合雷达目标微多普勒效应提出了基于双干扰机的InISAR三维干扰方法。首先介绍了InISAR成像原理，同时分析了单站干扰无法对InISAR产生三维干扰效果的原因。随后根据微动假目标模板讨论了两部干扰机内干扰信号合成方法，计算了两干扰信号在InISAR各个天线通道内分别叠加产生的实时变化的干涉相位，并给出了微动假目标模板经成像处理后产生的虚假高程信息。最后通过仿真结果证明，该方法能够实现对InISAR的三维干扰。 |
| 关键词: 干涉逆合成孔径雷达 三维干扰 干涉相位 微多普勒效应 |
| DOI：DOI:10.3969/j.issn.1672-2337.2019.06.005 |
| 分类号:TN974 |
| 基金项目: |
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| A Micro Doppler Modulation Jamming Method Against InISAR Based on Double Jammers |
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TANG Zhengzhao，ZHAO Guoqing
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School of Electronic Engineering，Xidian University，Xi’an 710071，China
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| Abstract: |
| In order to solve the problem that single jammer cant produce three dimensional (3 D) jamming effect on interferometric inverse synthetic aperture radar (InISAR)，a method capable of generating 3 D micro Doppler modulation jamming of InISAR using double jammers is proposed based on the micro Doppler effect of radar targets. Firstly，the principle of InISAR imaging is introduced，and the reason that why single jammer cant produce three dimensional (3 D) jamming effect on InISAR is analyzed. Then the procedures of synthesizing jamming signals in two jammers are discussed according to the template of false micro motion targets. After that，the real time interferometric phase of two jamming signals produced in the InISAR antenna channels are superimposed，and the false elevation information of the false micro motion targets can be generated after the image processing. Finally，the theoretical analysis and simulation results show that the method can realize the three dimensional micro Doppler modulation jamming of InISAR. |
| Key words: interferometric inverse synthetic aperture radar (InISAR) three dimensional (3 D) jamming interferometric phase micro Doppler effect |
