Detection of metallic and plastic landmines using the GPR and 2-D resistivity techniques

Abstract

Abstract. Low and non-metallic landmines are one of the most difficult subsurface targets to be detected using several geophysical techniques. Ground penetrating radar (GPR) performance at different field sites shows great success in detecting metallic landmines. However significant limitations are taking place in the case of low and non-metallic landmines. Electrical resistivity imaging (ERI) technique is tested to be an alternative or confirmation technique for detecting the metallic and non-metallic landmines in suspicious cleared areas. The electrical resistivity responses using forward modeling for metallic and non-metallic landmines buried in dry and wet environments utilizing the common electrode configurations have been achieved. Roughly all the utilized electrode arrays can establish the buried metallic and plastic mines correctly in dry and wet soil. The accuracy differs from one array to the other based on the relative resistivity contrast to the host soil and the subsurface distribution of current and potential lines as well as the amplitude of the noises in the data. The ERI technique proved to be fast and effective tool for detecting the non-metallic mines especially in the conductive environment whereas the performances of the other metal detector (MD) and GPR techniques show great limitation.

A vision-based terrain morphology estimation model inspired by the avian hippocampus

“…We propose the use of an autonomous portable microUnmanned Aerial Vehicle (pμUAV) system for mine detection and visualisation. This is unlike previous approaches, that make use of metallic detectors [2,3], trained animals [4] and ground-penetrating radar [5]. These previous techniques are either expensive or not readily accessible by untrained people.…”

Exploring Applications of GPR Methodology and Uses in Determining Floodplain Function of Restored Streams in the Gulf Coastal Plain, Alabama

“…The plastic containers were placed to try and capture void spaces on a GPR profile. Plastic does not produce a robust reflection (if one at all) on GPR profile, allowing void spaces to be seen, and replicating what large void spaces in a floodplain might look like 10 . After all objects were placed, the trenched was filled and flattened ( Figure 4).…”

Signal-to-Noise Ratio dependence on Ground Penetrating Radar antenna frequency in the field of landmine and UXO detection

“…In particular, the resolution needed to detect small objects involves GHz frequencies, which decreases soil penetration and increases image clutter [7]. The successful of detection is all over related to electromagnetic signal aspects such as the enough dielectric contrast between media, the range of maximum depth, as well the resolution and zone of influence of the GPR signal [8]. Also important is the possible attenuation in conductive media (like clay soils) that makes difficult signal penetration and may produces a total loss of data.…”