小波变换在探地雷达检测钢筋中的应用  

APPLICATION OF WAVELET TRANSFORM IN GPR TO DETECT REINFORCING BAR

作　　者：杨凤娟[1] 罗省贤 

机构地区：[1]成都理工大学信息工程学院

出　　处：《物探化探计算技术》2009年第4期354-360,290,共7页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：钢筋参数(位置、直径等)对已建构造物的安全性和合理性具有重要作用,这里充分利用探地雷达检测特点,钢筋与混凝土的电磁特性以及小波变换的优势等,避免了使用传统单一方法计算钢筋参数的片面性。采用改进小波变换法对钢筋精确定位,并用静态小波变换确定钢筋直径。经理论实验与应用实例表明,该算法精度高,效果好。The parameters of reinforcing bar(location,diameter) are very important to the security and the rationality of built construction.This paper present our method by making full utilization of the detection characteristic of GPR,the electromagnetism of reinforcing bar and the advantage of wavelet transform to avoid the unilateralism of traditional method in computing the parameters of reinforcing bar.We adopt improved wavelet method that determines the location of reinforcing bar and uses SWT to determine the diameter of reinforcing bar.The experiments and applications show that the effect is good and the precision is high.

关 键 词：小波变换 奇异点检测 钢筋位置(水平和埋深) 静态小波变换 钢筋直径 

分 类 号：P631.325[天文地球—地质矿产勘探]