场道钢筋加固区的灾害目标检测  

Disaster Detection for Rebar-reinforced Zone in Runways

作　　者：曹芸茜[1,2] 吴仁彪 何炜琨[1] 

机构地区：[1]中国民航大学智能信号与图像处理天津市重点实验室,天津300300 [2]中国民航大学基础实验中心,天津300300

出　　处：《信号处理》2018年第2期127-133,共7页Journal of Signal Processing

基　　金：国家自然基金与民航局联合资助项目(U1533110);中央高校基本科研业务费中国民航大学专项资助项目(3122017043)

摘　　要：机场场道道面下钢筋的强反射回波会严重影响灾害目标的检测,本文提出了一种机场场道钢筋回波抑制及灾害目标检测方法。首先提出时变增益函数和分段均衡的方法对钢筋的一次强反射回波及各层分界面的多次反射回波进行抑制,然后提出时频—时空域二重S变换方法对灾害目标进行检测,并能同时显示其在场道下的空间位置。该方法对厚度及体积较小的灾害目标同样适用,且显示直观,操作简便,处理速度快。仿真结果证明了本文方法的有效性。The strong echoes of rebar could seriously affect the disaster target detection, which brought great difficulties to the disaster target detection in the reber-reinforced zone. A new method of disaster detection for rebar-reinforced zone in runways was proposed in this paper. Firstly, time variant gain and segment equalization were proposed to suppress the strongest reflection echoes of the first layer and the complex multiple reflection echoes of the other layers ; and then, a new method of disaster target detection with S transform both in time-frequency dimension and time-distance dimension was pro- posed, which could be applied to the disaster target with small thickness and small volume ; meanwhile, the method could directly display the space position of disaster targets in the runways. The method of disaster detection proposed in this paper is intuitive, easy to operate and has fast processing speed. The simulation results demonstrate the validity of the method proposed in this paper.

关 键 词：机场场道 灾害目标检测 钢筋抑制 

分 类 号：TN95[电子电信—信号与信息处理]