基于时频分析的单脉冲雷达多目标分辨  

Multi-target resolution of monopulse radar based on time-frequency analysis

作　　者：雷红 吕海东 郭丰 LEI Hong;LYU Haidong;GUO Feng(Unit 63861 of the People’s Liberation Army,Baicheng 137001,China)

机构地区：[1]中国人民解放军63861部队,吉林白城137001

出　　处：《兵器装备工程学报》2022年第S02期137-141,共5页Journal of Ordnance Equipment Engineering

摘　　要：针对单脉冲体制雷达主波束内多目标时域难以分辨的问题,通过对多目标回波幅相特性分析及辨识机理的研究,应用短时傅里叶变换方法对时域混叠多目标回波信号进行检测分析,选取频域分离信号应用滑窗FFT算法进行目标分辨,解决了单脉冲雷达主波束内多目标分辨难题。经实测数据应用验证,该方法正确、可行。Aiming at the problem that it is difficult to distinguish the multi-target time domain in the main beam of monopulse radar,through the analysis of the characteristics of amplitude and phase of multi-target echo and the research of identification mechanism,this paper uses the short-time Fourier transform method to detect and analyze the time-domain aliasing multi-target echo signal,selects the frequency domain separated signal and uses the sliding window FFT algorithm to distinguish the target,which solves the problem of multi-target resolution in the main beam of monopulse radar.The application of the measured data shows that the method is correct and feasible.

关 键 词：单脉冲雷达 弹道测量 多目标分辨 时频分析 

分 类 号：TJ71[兵器科学与技术—武器系统与运用工程]