基于压缩感知的穿墙雷达成像虚像抑制方法  

CS-Based Virtual Image Suppression Method in Through-Wall-Radar Imaging

作　　者：郝金双[1] 苗锋[1] 汪洋[1] 

机构地区：[1]中国电子科技集团公司第二十八研究所,南京210007

出　　处：《指挥信息系统与技术》2016年第2期68-72,共5页Command Information System and Technology

摘　　要：穿墙雷达成像技术中,由于成像场景被墙体包围,信号传播的多径效应导致成像结果中出现多径虚像,故增大了虚警概率。针对该问题,建立了室内环境下多径模型,并基于压缩感知提出了虚像抑制方法。该方法中每条多径视为一个观测通道并集中到统一的压缩感知模型考虑。不同场景试验结果表明,该方法能显著抑制多径虚像出现。In through-wall-radar imaging（TWRI）,the imaging scene is encircled with walls.The multipath effect on the signal spread results in ghosts in the image,so false alarm probability increases.Aimed at the problem,a multipath model indoor is established and a virtual image suppression method based on compressive sensing（CS）is presented.In the method,each multipath is treated as an observation channel to be considered in a uniform CS model.Experimental results in different scenes show that the method can suppress the multipath virtual image.

关 键 词：穿墙雷达成像 多径 虚像 压缩感知 

分 类 号：TN953[电子电信—信号与信息处理]