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Type: Conference paper
Title: Imaging algorithm of a hand-held GPR MD sensor system (ALIS)
Author: Feng, Xuan
Fujiwara, Jun
Zhou, Zheng-Shu
Kobayashi, Takao
Sato, Motoyuki
Citation: Detection and Remediation Technologies for Mines and Mine-like Targets X : Proceedings of SPIE Defense and Security Symposium, 28 March-1 April, 2005 / Harmon, Russell S.; Broach, J. Thomas; Holloway, John H., Jr. (eds.) [vol. 5794, part II]: pp.1192-1198
Publisher: International Society for Optical Engineering
Issue Date: 2005
ISBN: 0819457795
ISSN: 0277-786X
Conference Name: SPIE Defense and Security Symposium (2005 : Orlando, Florida)
School/Discipline: School of Electrical and Electronic Engineering
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.
Keywords: Metal detector; Mine detection; Afghanistan; Measurement sensor
RMID: 0020076520
DOI: 10.1117/12.603263
Appears in Collections:Electrical and Electronic Engineering publications

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