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Proceedings Paper

Inside-the-wall detection of objects with low metal content using the GPR sensor: effects of different wall structures on the detection performance
Author(s): Mesut Dogan; Omer Yesilyurt; Gonul Turhan-Sayan
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Paper Abstract

Ground penetrating radar (GPR) is an ultra-wideband electromagnetic sensor used not only for subsurface sensing but also for the detection of objects which may be hidden behind a wall or inserted within the wall. Such applications of the GPR technology are used in both military and civilian operations such as mine or IED (improvised explosive device) detection, rescue missions after earthquakes and investigation of archeological sites. Detection of concealed objects with low metal content is known to be a challenging problem in general. Use of A-scan, B-scan and C-scan GPR data in combination provides valuable information for target recognition in such applications. In this paper, we study the problem of target detection for potentially explosive objects embedded inside a wall. GPR data is numerically simulated by using an FDTD-based numerical computation tool when dielectric targets and targets with low metal content are inserted into different types of walls. A small size plastic bottle filled with trinitrotoluene (TNT) is used as the target with and without a metal fuse in it. The targets are buried into two different types of wall; a homogeneous brick wall and an inhomogeneous wall constructed by bricks having periodically located air holes in it. Effects of using an inhomogeneous wall structure with internal boundaries are investigated as a challenging scenario, paying special attention to preprocessing.

Paper Details

Date Published: 30 April 2018
PDF: 10 pages
Proc. SPIE 10628, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XXIII, 1062803 (30 April 2018); doi: 10.1117/12.2304611
Show Author Affiliations
Mesut Dogan, Middle East Technical Univ. (Turkey)
Ardahan Üniv. (Turkey)
Omer Yesilyurt, Middle East Technical Univ. (Turkey)
Gonul Turhan-Sayan, Middle East Technical Univ. (Turkey)

Published in SPIE Proceedings Vol. 10628:
Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XXIII
Steven S. Bishop; Jason C. Isaacs, Editor(s)

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