对SAR的脉间周期式移频调制干扰

畅鑫; 董春曦; 唐峥钊; 董阳阳; 刘明明

doi:10.11999/JEIT170439

对SAR的脉间周期式移频调制干扰

doi: 10.11999/JEIT170439

基金项目:

国家973规划项目(61**81**)

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- 被引次数: 0
出版历程
- 收稿日期: 2017-05-10
- 修回日期: 2017-10-24
- 刊出日期: 2018-02-19

Inter-pulse Periodical Shift-frequency Jamming Against Synthetic Aperture Radar

Funds:

973 Program of China (61**81**)

摘要

摘要: 间歇采样转发干扰形成的假目标排布较为规律易被识别。为克服这一缺点，针对合成孔径雷达(SAR)提出一种脉间周期式移频调制干扰算法。将间歇采样算法和多普勒移频干扰算法相结合，采用分段调制产生密集假目标。首先理论分析证明，干扰算法能够在超前于干扰机的指定位置产生具有压制效果的2维密集假目标，主假目标在方位向上偏离干扰机所在位置。然后分析了干扰效果及影响因素，建立了干扰参数获取模型并给出了假目标能量补偿系数。最后通过仿真实验初步验证了干扰方法的有效性。
- 合成孔径雷达 /
- 移频干扰 /
- 间歇采样 /
- 多普勒移频 /
- 分段调制 /
- 周期性
Abstract: The regular false targets which are generated by the intermittent sampling repeater jamming can be easily recognized. To overcome this disadvantage, an inter-pulse periodical shift-frequency jamming method is proposed against Synthetic Aperture Radar (SAR). Combining the intermittent sampling jamming method with Doppler shift-frequency jamming method, the dense false targets can be produced by sectionalized modulation. Firstly, theoretical analysis shows that the two dimensional dense false targets with suppression effect can be produced ahead of the designated location of the jammer, and the main false target is deviated from the jammer in the azimuth. Moreover, the effect of the jamming and the factors are discussed. Subsequently, the model based on obtaining the jamming parameters is established and the energy compensation coefficient of false targets is also given. Finally, the validity is preliminarily verified by simulation experiments.
- Synthetic Aperture Radar (SAR) /
- Shift-frequency jamming /
- Intermittent sampling /
- Doppler shift- frequency /
- Sectionalized modulated /
- Periodically

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参考文献(39)

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