低频超宽带雷达抗拖曳式干扰仿真技术研究  

Research on the Simulation of Low Frequency Ultra Broadband Radar against the TRAD

作　　者：刘尚 蒋金华 杜飞飞[1] Liu Shang;Jiang Jinhua;Du Feifei(ElectTomechonic&l Design Institute of JiangNan,Guiyang Guizhou,550009)

机构地区：[1]江南机电设计研究所,贵州贵阳550009

出　　处：《电子测试》2021年第13期65-66,71,共3页Electronic Test

摘　　要：低频超宽带相控阵雷达以超宽带脉冲信号为工作波形,该信号具有脉冲宽度窄、频谱覆盖范围宽以及相对带宽大等特点【1】。这类窄脉冲信号,很难被敌方截获,具有低截获特点;同时该信号具有极宽的频带,能够有效降低噪声压制干扰的功率谱密度,因此具有较好的抗干扰性能。为仿真验证低频超宽带雷达抗拖曳式干扰性能,本文建立了低频超宽带相控阵雷达的信号模型,并对拖曳式干扰机理和高分辨一维距离像原理进行仿真研究,根据载机和拖曳式干扰信号特性的不同,有效分辨载机和拖曳式诱饵,验证了低频超宽带雷达对抗拖曳式干扰的有效性。Low Frequency ultra broadband phased radar takes UWB pulse signal as its working waveform.At the same time,the signal has the characteristics of narrow pulse width,wide spectrum coverage and the broadband frequency of ultra broadband radar.The signal of narrow pulse width who has the characteristics of low interception is very difficult for the enemy to intercept.In the meantime it has a better capacity of resisting disturbance,because of the ultra broadband frequency that can effectively reduce the power spectral density of noise suppression interference.In order to verify the capability of low frequency ultra broadband radar against TRAD(Towed Radar Active Decoy)by simulation results,this paper has established the signal model of low frequency phased radar.Meanwhile,the mechanisms of TRAD and the high resolution one-dimensional range image principle have been researched by simulation.By distinguishing the results of the different feature on the carrier aircraft and TRAD,it is verified that the capability of low frequency ultra broadband radar against TRAD is effective.

关 键 词：低频超宽带 信号模型 抗拖曳式干扰 高分辨一维距离像 

分 类 号：TN974[电子电信—信号与信息处理]