Processing strategies for high-resolution GPR concrete inspections

被引：48
|
作者：
Hugenschmidt, Johannes [1 ]
Kalogeropoulos, Alexis [1 ]
Soldovieri, Francesco
Prisco, Giancarlo
机构：
[1] Empa, Swiss Fed Labs Mat Testing & Res, CH-8600 Dubendorf, Switzerland
来源：
NDT & E INTERNATIONAL | 2010年 / 43卷 / 04期
关键词：
GPR; Concrete; High-resolution; Data processing; Inversion;
D O I：
10.1016/j.ndteint.2010.02.002
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A high-resolution multi-sensor and multi-polarization Ground Penetrating Radar (GPR) dataset was acquired on a concrete retaining wall. This dataset was characterised as a low pass filter with the help of a moving window spectral analysis. In order to examine the benefits and limits of innovative processing strategies, the dataset was processed with three different methods: classical 2-D processing, full 3-D processing followed by data fusion and inverse scattering followed by data fusion. A comparison of the results for two layers of rebar present in the wall shows that the innovative approaches improve the results for near surface structures when compared to classical 2-D processing. For deeper structures, the benefits of the innovative approaches are limited because of the low pass properties of the concrete. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：334 / 342
页数：9
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