末敏弹毫米波辐射计波形干扰新方法

摘要

末敏弹干扰技术的研究具有重要的军事应用价值.基于毫米波交流辐射计的工作原理和电路响应特性,提出了一种波形诱骗的毫米波有源干扰的新方法.采用毫米波干扰源发射窄频信号产生热源,经辐射计宽带接收和检波后获得宽时信号波形,视频放大器低频电路的微分作用使宽时信号波形失真为正、负脉冲形式的分裂信号,其中负脉冲部分类似末敏弹探测装甲目标的负向脉冲波形,实现模拟冷目标的干扰效果.仿真分析与实验验证了该方法的可行性和有效性.%Jamming technology research of terminal-sensitive projectile has important value in military application.On the basis of the working principle and circuit characteristics of millimeter-wave (MMW) alternating current radiometer,a novel MMW active jamming method for waveform deception is proposed.In this method the narrowband signal transmitted by the MMW interference source is used as a heat source to obtain a wide-time signal through the broadband receiver and detector,then derivative action of the video amplifier low-frequency circuit makes the wide-time signal to yield a splitting signal of positive pulse waveform and negative one,and the negative pulse of the splitting signal results in the similar signal waveform of the negative pulse in armored target detection,thus realizing the interference effect of cold-target simulation.The results for both simulation and experimental data demonstrate feasibility and validity of the proposed method.