Open AccessFDTD BASED NUMERICAL FRAMEWORK FOR GROUND PENETRATING RADAR SIMULATION
Author(s) -
Md Omar Faruq Howlader,
Tariq Sattar
Publication year - 2015
Publication title -
progress in electromagnetics research m
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 31
ISSN - 1937-8726
DOI - 10.2528/pierm15090304
Subject(s) - finite difference time domain method , ground penetrating radar , radar , dielectric , acoustics , gaussian , steel bar , shield , bar (unit) , computer science , pulse (music) , time domain , grid , materials science , cover (algebra) , geology , optics , telecommunications , engineering , physics , optoelectronics , mechanical engineering , petrology , oceanography , geodesy , quantum mechanics , detector , computer vision
In this paper, a one-dimensional numerical framework based on Finite-Difference Time- Domain (FDTD) method is developed to model response behaviour of Ground penetrating radar (GPR). The effects of electrical properties such as dielectric constant, conductivity of the media have been evaluated. A Gaussian shaped pulse is used as source which propagates through the 1D array grid, and the pulse interactions at different media interfaces have been investigated. The objective of this paper is to assess the modelling criteria and success rate of detecting buried object using the framework. A real life application of GPR to detect a buried steel bar in one meter thick concrete block has been carried out, and the results present successful detection of the steel bar along with measured depth of the concrete cover. The developed framework could be implemented to model multi-layer dielectric blocks with detection capability of various buried objects.
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