Abstract

Results of experiments on the use of three antenna units of ultra-wideband ground penetrating radars (UWB GPR) for nondestructive testing are presented. These three units have both different values of the centres frequency of the probing UWB pulses and different antenna configurations. The purpose of the performed experiments was to find the best values of sensing parameters. Another task was to optimize the technique for processing signals reflected from plane-layered media. The performed analysis of the obtained results showed the ways for improving the quality of nondestructive testing of road pavement and other building structures by using the UWB GPR. The proposed approach is based on the previously offered algorithm for the stepwise determination of the pavement layer thickness and the relative dielectric permittivity.

中文翻译：

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道路路面评估脉冲探地雷达信号频谱特性比较分析

摘要

介绍了使用超宽带探地雷达 (UWB GPR) 的三个天线单元进行无损检测的实验结果。这三个单元具有不同的探测 UWB 脉冲中心频率值和不同的天线配置。进行实验的目的是找到传感参数的最佳值。另一项任务是优化处理从平面分层介质反射的信号的技术。对所得结果的分析表明了使用 UWB GPR 提高路面和其他建筑结构无损检测质量的方法。所提出的方法基于先前提供的用于逐步确定路面层厚度和相对介电常数的算法。