Abstract
Ground Penetrating Radar (GPR) is a non-destructive geophysical survey technique based on the analysis of electromagnetic waves propagation phenomena (refraction, reflection and diffraction) in the subsoil. By analyzing the received signals, it is possible to obtain a representation of the different layers of the subsoil. The data quality of the GPR signal becomes more important to get quantitative information about the underground layers, such as their thickness. For the evaluation of the quality of the received signal, air-launched and ground-coupled antenna systems are used. The effects of an incident field on the received signal may have to be considered.
This paper examines the effects of the GPR antennae orientation on the received signal for the air-launched and ground-coupled antenna systems. Also, the different types of incident field sources are tested in order to obtain a better quality received signal, by comparing the quantitative information after the data analysis. The effects of these changes in types of incident field sources are measured by changes in arrival time. To see these effects, a 3D numerical modeling has been done using the open source software gprMax. From the results it appears that the Ricker and Gaussiandotnorm waveforms are the best incident fields in ground-coupled antenna with parallel and perpendicular configuration, respectively.
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Ghozzi, R., Lahouar, S., Souani, C. (2020). Data Quality of the Information Collected from GPR on a 3D Structure. In: Bouhlel, M., Rovetta, S. (eds) Proceedings of the 8th International Conference on Sciences of Electronics, Technologies of Information and Telecommunications (SETIT’18), Vol.2. SETIT 2018. Smart Innovation, Systems and Technologies, vol 147. Springer, Cham. https://doi.org/10.1007/978-3-030-21009-0_6
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DOI: https://doi.org/10.1007/978-3-030-21009-0_6
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