Detectability of junctions of underground electrical cables with a ground penetrating radar: Electromagnetic simulation and experimental measurements
| Autor: | Xiang Liu, Marc Lambert, Mohammed Serhir |
|---|---|
| Přispěvatelé: | Laboratoire Génie électrique et électronique de Paris (GeePs), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Engineering
Frequency band Acoustics 0211 other engineering and technologies 02 engineering and technology 010502 geochemistry & geophysics migration 01 natural sciences Ground penetrating radar Electronic engineering General Materials Science Full-wave electromagnetic simulation Visibility Ultra Wide band antenna 021101 geological & geomatics engineering 0105 earth and related environmental sciences Civil and Structural Engineering business.industry Seismic migration Building and Construction Power (physics) [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism Ground-penetrating radar Clutter Antenna (radio) Reduction (mathematics) business |
| Zdroj: | Construction and Building Materials Construction and Building Materials, Elsevier, 2018, 158, pp.1099-1110. ⟨10.1016/j.conbuildmat.2017.10.038⟩ |
| ISSN: | 0950-0618 |
| DOI: | 10.1016/j.conbuildmat.2017.10.038⟩ |
| Popis: | International audience; For electricity distribution companies, being able to accurately detect the position of buried power cables using nondestructive methods is a crucial issue. The most important issue is the localization of the junction part linking the cables to each other where most maintenance operations are carried out. In this work we have conducted a feasibility study to confirm the relevance of high frequency Ground Penetrating Radar (GPR) to detect these buried junctions in their environment despite the clutter. The cables are buried in an inhomogeneous Earth medium at about one meter deep. Consequently, we have optimized a folded bowtie antenna to fit the frequency band [0.5 GHz–3 GHz]. Then a rigorous model of the cable is considered in the numerical study using the optimized antenna in a bi-static configuration. A full wave electromagnetic simulation software (CST MWS) has been used to study the detectability of the junction within dry and wet homogeneous sands then a classical Kirchhoff migration technique has been used to process the data and localize the junction. Finally, our analysis has been validated by measurements at a test site (real environment) to show the efficiency of the proposed analysis. The measured data are also post-processed using a digital filtering technique for clutter reduction and visibility enhancement of the buried cable. |
| Databáze: | OpenAIRE |
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