窄带相参雷达调制谱超分辨处理方法  

Super-resolution processing of coherent narrowband radar for modulation spectrum

作　　者：黄璟[1] 肖志河[1] 任红梅[1] 

机构地区：[1]北京环境特性研究所,北京100854

出　　处：《系统工程与电子技术》2010年第9期1894-1897,共4页Systems Engineering and Electronics

基　　金：国防科技重点实验室基金(9140C620402070C62)资助课题

摘　　要：针对采用时分体制下窄带相参雷达对单个目标的连续跟踪时间变短,导致频谱分辨率降低的问题,提出了一种连接不同时间段回波信号的方法。该方法利用MUSIC算法估计窄带雷达时域回波的模型参数,然后用该模型连接不同时间段信号。通过该方法,可以提高窄带相参雷达时分多目标跟踪时的频谱分辨率,有利于调制谱特征的提取。对仿真和实测数据的分析处理验证了该方法的有效性。In order to enhance the spectrum resolution of the coherent narrow-band radar which uses time-sharing systems to track multiple targets,a method of connecting sparse sub-band measurements is presented.The method adopts a MUSIC algorithm to estimate the model parameter of the narrow-band radar echo,and connects sparse sub-band measurements based on the model.The spectrum resolution is enhanced by applying this method,which is advantageous to the extraction of the feature of the modulation spectrum.The effectiveness of the proposed method is verified by the experiment.

关 键 词：窄带雷达 调制谱 超分辨处理 MUSIC算法 

分 类 号：TN958[电子电信—信号与信息处理]