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Attribute Analysis Of Electromagnetic Waves In Different Mediums Using Ground Penetrating Radar

Ground-penetrating radar (GPR) has been widely used to detect shallow subsurface geological features and man-made buried objects such as utilities and archaeological structures. It is critical to interpret GPR data thoroughly to provide reliable interpretations of near-surface structures, as certain...

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第一著者: Roslan, Iffah Zalikha
フォーマット: 学位論文
言語:English
出版事項: 2022
主題:
QC1 Physics (General)
オンライン･アクセス:http://eprints.usm.my/59696/1/24%20Pages%20from%20IFFAH%20ZALIKHA%20BINTI%20ROSLAN%20-%20TESIS.pdf
http://eprints.usm.my/59696/
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spelling my.usm.eprints.59696 http://eprints.usm.my/59696/ Attribute Analysis Of Electromagnetic Waves In Different Mediums Using Ground Penetrating Radar Roslan, Iffah Zalikha QC1 Physics (General) Ground-penetrating radar (GPR) has been widely used to detect shallow subsurface geological features and man-made buried objects such as utilities and archaeological structures. It is critical to interpret GPR data thoroughly to provide reliable interpretations of near-surface structures, as certain types of buried objects frequently generate similar GPR reflection signals. Thus, this research aims to identify the factors affecting electromagnetic wave (EM) propagation in the subsurface using GPR and to analyze the EM wave attribute in several media and survey geometry as well as to produce a basic guideline for GPR practitioners in interpreting the GPR data. The data acquisition in this study is divided into two parts; 1) experimental model and 2) field study. In the experimental model, radar-wave signals were investigated with varying object geometry. Results indicated that when the upper layer/medium had a lower relative permittivity than the layer/medium underneath, the polarity is normal. By contrast, the reflection polarity is reversed when it is reflected from a material with a lower relative permittivity than the material above it. The greater the relative permittivity contrast, the greater the reflection coefficient, and hence the easier it is to delineate layers and discover subsurface features. The reflection coefficient of reflectivity contrast quality is divided into weak (<0.3), good (0.3-0.5) and excellent (>0.5). 2022-09 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/59696/1/24%20Pages%20from%20IFFAH%20ZALIKHA%20BINTI%20ROSLAN%20-%20TESIS.pdf Roslan, Iffah Zalikha (2022) Attribute Analysis Of Electromagnetic Waves In Different Mediums Using Ground Penetrating Radar. Masters thesis, Perpustakaan Hamzah Sendut.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic QC1 Physics (General)
spellingShingle QC1 Physics (General)
Roslan, Iffah Zalikha
Attribute Analysis Of Electromagnetic Waves In Different Mediums Using Ground Penetrating Radar
description Ground-penetrating radar (GPR) has been widely used to detect shallow subsurface geological features and man-made buried objects such as utilities and archaeological structures. It is critical to interpret GPR data thoroughly to provide reliable interpretations of near-surface structures, as certain types of buried objects frequently generate similar GPR reflection signals. Thus, this research aims to identify the factors affecting electromagnetic wave (EM) propagation in the subsurface using GPR and to analyze the EM wave attribute in several media and survey geometry as well as to produce a basic guideline for GPR practitioners in interpreting the GPR data. The data acquisition in this study is divided into two parts; 1) experimental model and 2) field study. In the experimental model, radar-wave signals were investigated with varying object geometry. Results indicated that when the upper layer/medium had a lower relative permittivity than the layer/medium underneath, the polarity is normal. By contrast, the reflection polarity is reversed when it is reflected from a material with a lower relative permittivity than the material above it. The greater the relative permittivity contrast, the greater the reflection coefficient, and hence the easier it is to delineate layers and discover subsurface features. The reflection coefficient of reflectivity contrast quality is divided into weak (<0.3), good (0.3-0.5) and excellent (>0.5).
format Thesis
author Roslan, Iffah Zalikha
author_facet Roslan, Iffah Zalikha
author_sort Roslan, Iffah Zalikha
title Attribute Analysis Of Electromagnetic Waves In Different Mediums Using Ground Penetrating Radar
title_short Attribute Analysis Of Electromagnetic Waves In Different Mediums Using Ground Penetrating Radar
title_full Attribute Analysis Of Electromagnetic Waves In Different Mediums Using Ground Penetrating Radar
title_fullStr Attribute Analysis Of Electromagnetic Waves In Different Mediums Using Ground Penetrating Radar
title_full_unstemmed Attribute Analysis Of Electromagnetic Waves In Different Mediums Using Ground Penetrating Radar
title_sort attribute analysis of electromagnetic waves in different mediums using ground penetrating radar
publishDate 2022
url http://eprints.usm.my/59696/1/24%20Pages%20from%20IFFAH%20ZALIKHA%20BINTI%20ROSLAN%20-%20TESIS.pdf
http://eprints.usm.my/59696/
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score 13.250246

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