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兵工学报 ›› 2014, Vol. 35 ›› Issue (1): 49-54.doi: 10.3969/j.issn.1000-1093.2014.01.007

• 论文 • 上一篇    下一篇

基于波形诱骗的末敏弹毫米波有源干扰研究

陈曦1, 陈自力2, 许建中1, 孟春祥1   

  1. (1.南京理工大学 电子工程与光电技术学院, 江苏 南京 210094; 2.空军勤务学院, 江苏 徐州 221000)
  • 收稿日期:2013-01-15 修回日期:2013-01-15 上线日期:2014-03-18
  • 作者简介:陈曦(1984—),女,博士研究生
  • 基金资助:
    中国博士后科学基金项目(20100481151)

Study of Millimeter-wave Active Jamming Based on Waveform Deception for Terminal-sensitive Projectiles

CHEN Xi1, CHEN Zi-li2, XU Jian-zhong1, MENG Chun-xiang1   

  1. (1.School of Electronic Engineering and Optoelectronic Technology, Nanjing University of Science and Technology,2.Air Force Logistics College, Xuzhou 221000, Jiangsu, China)
  • Received:2013-01-15 Revised:2013-01-15 Online:2014-03-18

摘要: 根据末敏弹毫米波交流辐射计探测金属目标时弹目交会特点和信号处理电路特性,提出了一种基于波形诱骗的毫米波有源干扰新方法。分析并建立了辐射计探测干扰源信号时的天线温度模型,与探测地面金属目标相比,天线温度信号脉宽明显展宽,幅度保持恒定。该信号经视频放大器低频截止作用后,使输入的等幅宽时信号发生频率失真,输出具有正、负脉冲形式的波形分裂信号,其中负脉冲部分可以模拟探测地面金属目标的输出信号。实验结果验证了设计方法的正确性和有效性,为毫米波末敏弹有源干扰提供了一种可行的方法。

关键词: 兵器科学与技术, 末敏弹, 有源干扰, 波形诱骗, 宽时信号, 毫米波交流辐射计

Abstract: According to the characteristics of the encounter between terminal-sensitive projectile and metal target and the signal processing circuit of millimeter-wave (MMW) alternating current radiometer, a novel method of MMW active jamming based on waveform deception is proposed. An antenna temperature model for the interference source detection is analyzed and established. The antenna temperature signal has wider pulse width and constant amplitude compared with the output signal in ground metal target detection. Then the signal frequency is distorted by the inherent low-frequency cut-off feature of the video amplifier in the radiometer, generating the split signals of positive and negative pulse waveforms, in which the negative waveform pulse can be used to simulate the output signal in ground metal target detection. The experimental results demonstrate the validity and feasibility of the proposed method, which provides an approach for MMW terminal-sensitive active jamming.

Key words: ordnance science and technology, terminal-sensitive projectile, active jamming, waveform deception, widetime signal, millimeter-wave alternating current radiometer

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