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Proceedings Paper

Imaging algorithm of a hand-held GPR MD sensor system (ALIS)
Author(s): Xuan Feng; Jun Fujiwara; Zheng-shu Zhou; Takao Kobayashi; Motoyuki Sato
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Paper Abstract

We are developing a new landmine detection system, called advanced landmine imaging system (ALIS), which is equipped with metal detector (MD) and ground penetrating radar (GPR). Although this is a hand-held system, we can record the MD and GPR signal with the sensor position information acquired by CCD camera. Therefore, 2D MD image and 3D GPR image are possible after signal processing. But because ALIS is a hand-held system, the sensor position is random when it is operated in the field. So interpolation processing is used to deal with the problem and offer grid data set for both MD and GPR. Good MD image can be achieved after interpolation. Also, interpolation can prepare good data set for migration to get good horizontal slice image. After interpolation, 3D diffraction stacking migration with migration aperture is used to refocus the scattered signals and enhance the signal-clutter ratio for reconstructed good GPR image. The ALIS was tested in Afghanistan in December 2004 and could achieve good landmine image. Especially, GPR could obtain good image of anti-person (AP) mine buried at more than 20cm depth. Also MD image and GPR image could combine to distinguish mine from metal fragment.

Paper Details

Date Published: 10 June 2005
PDF: 8 pages
Proc. SPIE 5794, Detection and Remediation Technologies for Mines and Minelike Targets X, (10 June 2005); doi: 10.1117/12.603263
Show Author Affiliations
Xuan Feng, Tohoku Univ. (Japan)
Jilin Univ. (China)
Jun Fujiwara, Tokyo Gas Co. Ltd. (Japan)
Zheng-shu Zhou, Tohoku Univ. (Japan)
Takao Kobayashi, Tohoku Univ. (Japan)
Japan Science and Technology Agency (Japan)
Motoyuki Sato, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 5794:
Detection and Remediation Technologies for Mines and Minelike Targets X
Russell S. Harmon; J. Thomas Broach; John H. Holloway Jr., Editor(s)

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