The contamination of soil and groundwater by LNAPLs is a problem that has been treated over several years, because, they are used in the industrial worldwide. Its location and behavior in the subsurface has been monitored through invasive methods that disturb the environment and they are costly. In this sense, we integrated a noninvasive hydrogeophysical method as Ground Penetrating Radar (GPR)...

In this paper, the Direction of Arrival (DOA) estimation is implemented using a steppedfrequency ground penetrating radar data for antipersonal landmines detection. Different experiments for different anti-personal landmines for different depths have been achieved. The techniques used in this paper are high-resolution techniques such as Multiple Signal Classification (MUSIC), and EigenVector (E...

We propose a methodological tool for examining the layout and revealing the concealed characteristics of urbanwater supply systems (WSS). For this purpose,we use underground images obtained with ground penetrating radar (GPR) as a method that does not alter the system conditions and environmental characteristics (non-destructive methods). The study focuses on wave amplitude and uses intensive m...

Development and implementation of RABIT (Robotics Assisted Bridge Inspection Tool) in condition assessment concrete bridge decks is described. The system uses multiple nondestructive evaluation (NDE) technologies in characterization of three most common deterioration types: rebar corrosion, delamination, and concrete degradation. The system implements four NDE technologies: electrical resistivi...

We numerically examine subsurface sensing via an ultrawideband ground penetrating radar (GPR) system. The target is assumed to reside under a randomly rough air–ground interface and is illuminated by a pulsed plane wave. The underlying wave physics is addressed through application of the multiresolution time-domain (MRTD) algorithm. The scattered time-domain fields are parametrized as a random ...

A Monte Carlo algorithm for extracting contours in 2D images is proposed in this paper. A multiple model Particle Filter (PF) for progressive contour growing (tracking) from a starting point is designed, accounting for the convex, noncircular form of delineated areas. The algorithm relies on image intensity gradients as measurements and requires information about four manually selected points: ...

In this work, a wideband airborne reflector-based ground penetrating radar (GPR) is designed and proposed. The proposed GPR consists of 15 discrete panels, each panel supported by single multi-rotor unmanned aerial vehicle (UAV). A lightweight, Vivaldi antenna was developed as the feed structure. operates within frequency range 100-500 MHz has bandwidth 387 MHz. will possess penetration depth 2...

Abstract. Monitoring active layer dynamics is critical for improving the understanding of near-surface thermal and hydrological processes in cryosphere. This study presents laboratory test a low-cost ground-penetrating radar (GPR) system within experiment freezing thawing monitoring. The an in-house-built low-power monostatic GPR antenna coupled with reflectometer piloted by single-board comput...

Ground Penetrating Radar (GPR) has proved to be a successful technique for the detection of landmines and Improvised Explosive Devices (IEDs) buried in ground. In last years, novel architectures safe fast detection, such as those based on GPR systems onboard Unmanned Aerial Vehicles (UAVs), have been proposed. Furthermore, improvements hardware signal processing techniques resulted more efficie...

The use of ground penetrating radar (GPR) for detecting the presence of near-surface interfaces is a scenario of special interest to the underground coal mining industry. The problem is difficult to solve in practice because the radar echo from the near-surface interface is often dominated by unwanted components such as antenna crosstalk and ringing, ground-bounce effects, clutter, and severe a...