带干扰雷达型目标模拟器校准方法  

A calibration method for radar target simulator with jamming

作　　者：易磊[1] 严宜强[1] 李淼 YI Lei;YAN Yiqiang;LI Miao(China Airborne Missile Academy,Luoyang 471009,China)

机构地区：[1]中国空空导弹研究院

出　　处：《中国测试》2019年第12期14-19,共6页China Measurement & Test

基　　金：国防科技工业技术基础科研项目(JSJL2015205B017)

摘　　要：为解决雷达型目标模拟器中干扰信号参数的校准难题,提出一种基于软件无线电思想的校准方法,通过对目标模拟器输出的回波信号下变频,并进行数字化处理,匹配预设的干扰信号模型,解算出干扰信号参数,实现带干扰雷达型目标模拟器的校准。研建雷达型目标模拟器校准系统,对某型目标模拟器进行校准,并对校准结果进行不确定度评定。校准结果表明:干扰信号参数误差3%以内,拖引速度不确定度1 m/s,拖引加速度不确定度0.2 m/s2,干扰信号捕获、拖引、保持与关机时间的不确定度为0.01 s,校准结果证明该方法可以应用于带干扰雷达型目标模拟器的校准。The calibration of the jamming signal parameters in radar target simulator is hardly achieved at the present stage.In this paper,a new calibration technique based on the thought of software radio was proposed.For matching the presupposed interference signals,the echo signal output from target simulator was down-converted and digital processed.The radar target simulator with interference could be calibrated though the calculation of the jamming signal parameters.A calibration system of radar target simulator was developed and the uncertainty of the calibration results was evaluated.The calibration results implied that:the parameter deviation of jamming signal was not more than 3%,the dragging speed uncertainty of jamming signal was 1 m/s,the acceleration uncertainty was 0.2 m/s2 and the uncertainty of jamming signal acquisition,dragging,holding and shutdown time was 0.01 s.It demonstrated that this technique could be applied to calibrate the radar target simulator with jamming signal.

关 键 词：雷达型目标模拟器 速度拖引干扰 距离拖引干扰 软件无线电 校准 

分 类 号：TN95[电子电信—信号与信息处理]