Polarimetric alpha angle versus relative permittivity with dual-polarimetric GPR experiments

Zou, Lilong ORCID: https://orcid.org/0000-0002-5109-4866, Tosti, Fabio ORCID: https://orcid.org/0000-0003-0291-9937, Lantini, Livia ORCID: https://orcid.org/0000-0002-0416-1077 and Alani, Amir (2022) Polarimetric alpha angle versus relative permittivity with dual-polarimetric GPR experiments. In: 2021 11th International Workshop on Advanced Ground Penetrating Radar (IWAGPR), 01-04 Dec 2021, Valletta, Malta.

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Ground penetrating radar (GPR) is one of the most commonly used technologies for non-destructive testing (NDT). With the development of GPR signal processing methodologies, researchers are becoming more concerned not just with the detection of the target itself, but also with their physical properties and main features. In general, full waveform inversion algorithm is required to achieve this aim. But, full waveform inversion problem is a costive approach which need a huge computation. Thus, the ultimate goal of this study is to explore an effective strategy for estimating the relative permittivity of the target using polarimetric GPR data. We have investigated the relation between relative permittivity and polarimetric alpha angle based on the data collected by dualpolarization antennas GPR system. Laboratory experiments that measures different moisture sand targets (simulating for different relative permittivity target) in tree trunk holes have been carried out, taken as analog models for the physiological process representing decays in trees. After signal processing, the rough results that alpha angle versus with relative permittivity were obtained. The results show that for a dry sand the polarimetric alpha angle is small and the polarimetric alpha angle increases with increasing water content.

Item Type: Conference or Workshop Item (Paper)
ISSN: 2687-7899
ISBN: 9781665422536
Identifier: 10.1109/iwagpr50767.2021.9843156
Identifier: 10.1109/iwagpr50767.2021.9843156
Additional Information: © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: Polarimetric Alpha Angle, relative permittivity, tree trunk, dual-polarimetric, ground penetrating radar (GPR)
Subjects: Construction and engineering > Civil and environmental engineering
Related URLs:
Depositing User: Lilong Zou
Date Deposited: 15 Sep 2022 18:40
Last Modified: 02 Nov 2022 13:53
URI: https://repository.uwl.ac.uk/id/eprint/9383


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