A new integrated approach for characterizing the soil electromagnetic properties and detecting landmines using a hand-held vector network analyzer

A new integrated approach for characterizing the soil electromagnetic properties and detecting landmines using a hand-held vector network analyzer

Lopra, O.
Lambot, S.
Slob, E.
Vanclooster, M.
Macq, B.
Milisavljevic, N.

Civil Engineering and Geosciences

Applied Geophysics and Petrophysics

2006-05-01

The application of ground-penetrating radar (GPR) in humanitarian demining labors presents two major challenges: (1) the development of affordable and practical systems to detect metallic and non-metallic antipersonnel (AP) landmines under different conditions, and (2) the development of accurate soil characterization techniques to evaluate soil properties effects and determine the performance of these GPR-based systems. In this paper, we present a new integrated approach for characterizing electromagnetic (EM) properties of mine-affected soils and detecting landmines using a low cost hand-held vector network analyzer (VNA) connected to a highly directive antenna. Soil characterization is carried out using the radar-antenna-subsurface model of Lambot et al.1 and full-wave inversion of the radar signal focused in the time domain on the surface reflection. This methodology is integrated to background subtraction (BS) and migration to enhance landmine detection. Numerical and laboratory experiments are performed to show the effect of the soil EM properties on the detectability of the landmines and how the proposed approach can ameliorate the GPR performance.

ground penetrating radar
soil electromagnetic properties
landmine detection
background subtraction
migration

http://resolver.tudelft.nl/uuid:112b51df-a377-46df-9596-91b33c0189ee

SPIE

0277-786X

Proceedings of SPIE, 2006 vol. 6217

Institutional Repository

conference paper

(c)2006 Lopera, O., Lambot, S., Slob, E., Vanclooster, M., Macq, B., Milisavljevic, N.