A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tunnel Detection Using Cross-Well Radar
Illegal immigrants and smugglers have frequently used underground tunnels to avoid border security and checkpoints. The threat of international terrorism also warrants the effort to detect tunnels a national security priority. The goal of this research is to study and evaluate the feasibility of using Cross-Well Radar to detect tunnels and develop a real-time monitoring technique for borders (narrowed down to by surface investigation, such as GPR, etc.) or surrounding prisons or highly secured area. In this paper, an approach for tunnel detection is experimentally validated at a pilot scale facility (referred to as SoilBED). Multiple-depth wideband frequency-response measurements were collected in the fully saturated sandy soil, and across PVC-cased ferrite-bead jacketed borehole monopole antennas. The measurements were used to assess the impact of the experimentally simulated tunnels on the electromagnetic wave propagation. The setup was then theoretically modeled using a two dimensional finite difference frequency domain (2D-FDFD) technique to seek the level of agreement between the theoretical and experimental data. The results will be eventually used to reconstruct images of the tunnel via inversion techniques.
Tunnel Detection Using Cross-Well Radar
Illegal immigrants and smugglers have frequently used underground tunnels to avoid border security and checkpoints. The threat of international terrorism also warrants the effort to detect tunnels a national security priority. The goal of this research is to study and evaluate the feasibility of using Cross-Well Radar to detect tunnels and develop a real-time monitoring technique for borders (narrowed down to by surface investigation, such as GPR, etc.) or surrounding prisons or highly secured area. In this paper, an approach for tunnel detection is experimentally validated at a pilot scale facility (referred to as SoilBED). Multiple-depth wideband frequency-response measurements were collected in the fully saturated sandy soil, and across PVC-cased ferrite-bead jacketed borehole monopole antennas. The measurements were used to assess the impact of the experimentally simulated tunnels on the electromagnetic wave propagation. The setup was then theoretically modeled using a two dimensional finite difference frequency domain (2D-FDFD) technique to seek the level of agreement between the theoretical and experimental data. The results will be eventually used to reconstruct images of the tunnel via inversion techniques.
Tunnel Detection Using Cross-Well Radar
Farid, Arvin M. (author) / Martinez-Lorenzo, Jose A. (author) / Alshawabkeh, Akram N. (author) / Rappaport, Carey M. (author)
GeoCongress 2008 ; 2008 ; New Orleans, Louisiana, United States
GeoCongress 2008 ; 284-291
2008-03-07
Conference paper
Electronic Resource
English
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