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對(duì)SAR的脈間周期式移頻調(diào)制干擾

暢鑫,  董春曦,  唐崢釗,  董陽(yáng)陽(yáng),  劉明明

暢鑫, 董春曦, 唐崢釗, 董陽(yáng)陽(yáng), 劉明明. 對(duì)SAR的脈間周期式移頻調(diào)制干擾[J]. 電子與信息學(xué)報(bào), 2018, 40(2): 470-478. doi: 10.11999/JEIT170439
引用本文: 暢鑫, 董春曦, 唐崢釗, 董陽(yáng)陽(yáng), 劉明明. 對(duì)SAR的脈間周期式移頻調(diào)制干擾[J]. 電子與信息學(xué)報(bào), 2018, 40(2): 470-478. doi: 10.11999/JEIT170439
CHANG Xin, DONG Chunxi, TANG Zhengzhao, DONG Yangyang, LIU Mingming. Inter-pulse Periodical Shift-frequency Jamming Against Synthetic Aperture Radar[J]. Journal of Electronics & Information Technology, 2018, 40(2): 470-478. doi: 10.11999/JEIT170439
Citation: CHANG Xin, DONG Chunxi, TANG Zhengzhao, DONG Yangyang, LIU Mingming. Inter-pulse Periodical Shift-frequency Jamming Against Synthetic Aperture Radar[J]. Journal of Electronics & Information Technology, 2018, 40(2): 470-478. doi: 10.11999/JEIT170439

對(duì)SAR的脈間周期式移頻調(diào)制干擾

doi: 10.11999/JEIT170439 cstr: 32379.14.JEIT170439
基金項(xiàng)目: 

國(guó)家973規(guī)劃項(xiàng)目(61**81**)

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

Funds: 

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

  • 摘要: 間歇采樣轉(zhuǎn)發(fā)干擾形成的假目標(biāo)排布較為規(guī)律易被識(shí)別。為克服這一缺點(diǎn)，針對(duì)合成孔徑雷達(dá)(SAR)提出一種脈間周期式移頻調(diào)制干擾算法。將間歇采樣算法和多普勒移頻干擾算法相結(jié)合，采用分段調(diào)制產(chǎn)生密集假目標(biāo)。首先理論分析證明，干擾算法能夠在超前于干擾機(jī)的指定位置產(chǎn)生具有壓制效果的2維密集假目標(biāo)，主假目標(biāo)在方位向上偏離干擾機(jī)所在位置。然后分析了干擾效果及影響因素，建立了干擾參數(shù)獲取模型并給出了假目標(biāo)能量補(bǔ)償系數(shù)。最后通過(guò)仿真實(shí)驗(yàn)初步驗(yàn)證了干擾方法的有效性。
    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.
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  • 收稿日期:  2017-05-10
  • 修回日期:  2017-10-24
  • 刊出日期:  2018-02-19

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