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基于多普勒频率差的拖曳式诱饵干扰检测

付孝龙 白渭雄 李欣 原慧 陈津津

付孝龙, 白渭雄, 李欣, 等 . 基于多普勒频率差的拖曳式诱饵干扰检测[J]. 北京航空航天大学学报, 2017, 43(10): 2081-2088. doi: 10.13700/j.bh.1001-5965.2016.0797
引用本文: 付孝龙, 白渭雄, 李欣, 等 . 基于多普勒频率差的拖曳式诱饵干扰检测[J]. 北京航空航天大学学报, 2017, 43(10): 2081-2088. doi: 10.13700/j.bh.1001-5965.2016.0797
FU Xiaolong, BAI Weixiong, LI Xin, et al. Towed radar active decoy jamming detection based on Doppler frequency difference[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(10): 2081-2088. doi: 10.13700/j.bh.1001-5965.2016.0797(in Chinese)
Citation: FU Xiaolong, BAI Weixiong, LI Xin, et al. Towed radar active decoy jamming detection based on Doppler frequency difference[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(10): 2081-2088. doi: 10.13700/j.bh.1001-5965.2016.0797(in Chinese)

基于多普勒频率差的拖曳式诱饵干扰检测

doi: 10.13700/j.bh.1001-5965.2016.0797
基金项目: 

国家自然科学基金 61501500

详细信息
    作者简介:

    付孝龙  男, 博士研究生。主要研究方向:雷达电子战

    白渭雄  男, 博士, 教授, 博士生导师。主要研究方向:雷达电子战

    李欣  男, 博士研究生。主要研究方向:雷达抗干扰新技术

    原慧  女, 博士研究生。主要研究方向:盲信号处理

    陈津津  男, 助理工程师。主要研究方向:雷达电子战

    通讯作者:

    白渭雄, E-mail: wxb369@126.com

  • 中图分类号: TN974

Towed radar active decoy jamming detection based on Doppler frequency difference

Funds: 

National Natural Science Foundation of China 61501500

More Information
  • 摘要:

    诱饵的检测是拖曳式诱饵(TRAD)干扰对抗的基础。对单脉冲雷达有无拖曳式诱饵干扰下平衡鉴相器(BPD)输出角误差信号进行了推导,根据平衡鉴相器的原理,得出了目标和诱饵干扰信号间的多普勒频率差会影响角误差信号的结论。当不存在拖曳式诱饵干扰时,经低通滤波器处理后角误差信号无变化;当存在拖曳式诱饵干扰时,经低通滤波器处理后角误差信号交流部分被滤除,角误差信号发生变化。根据诱饵存在与否时角误差信号的这一差异,利用门限检测实现对诱饵干扰的检测。仿真分析了不同干扰场景下的检测性能,验证了本文方法的有效性。

     

  • 图 1  单脉冲雷达测角系统框图

    Figure 1.  Angle measure block diagram of monopulse radar system

    图 2  信号矢量合成图

    Figure 2.  Diagram of phasor summation analysis of signals

    图 3  多普勒频率差计算示意图

    Figure 3.  Schematic of derivation of Doppler frequency difference

    图 4  拖曳式诱饵干扰检测框图

    Figure 4.  Block diagram of towed radar active decoy jamming detection

    图 5  典型参数下多普勒频率差

    Figure 5.  Doppler frequency difference under typical parameters

    图 6  两点源张角变化(ISR=30 dB,ΔF=250 Hz)

    Figure 6.  Variation of dual-source field angle (ISR=30 dB, ΔF=250 Hz)

    图 7  两点源功率比变化(Δθ=0.4°,ΔF=250 Hz)

    Figure 7.  Variation of dual-source jam-to-signal ratio(Δθ=0.4°, ΔF=250 Hz)

    图 8  两点源多普勒频率差变化(ISR=30 dB,Δθ=0.4°)

    Figure 8.  Variation of dual-source Doppler frequency difference(ISR=30 dB, Δθ=0.4°)

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出版历程
  • 收稿日期:  2016-10-14
  • 录用日期:  2016-11-18
  • 刊出日期:  2017-10-20

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