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Inside-the-wall detection of objects with low metal content using the GPR sensor: effects of different wall structures on the detection performance
Date
2018-04-19
Author
DOĞAN, MESUT
YESİLTURT, Omer
Sayan, Gönül
Metadata
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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.
Subject Keywords
Ground penetrating radar
,
Energy-based target features
,
Preprocessing
,
Inside-the-wall target detection
URI
https://hdl.handle.net/11511/37348
DOI
https://doi.org/10.1117/12.2304611
Collections
Department of Electrical and Electronics Engineering, Conference / Seminar
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M. DOĞAN, O. YESİLTURT, and G. Sayan, “Inside-the-wall detection of objects with low metal content using the GPR sensor: effects of different wall structures on the detection performance,” 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37348.