نتایج جستجو برای: penetrating radar gpr measurements in this paper

تعداد نتایج: 17270682  

Journal: :IEEE Geoscience and Remote Sensing Letters 2023

This paper presents an imaging approach for Multiple Input Output Ground Penetrating Radar (MIMO GPR) systems working in down-looking contactless mode. The exploits a linear approximation of the scattering phenomenon and is based on ray-based propagation model, which takes into account presence air-soil interface. Accordingly, Interface Reflection Point concept extended to case MIMO GPR. propos...

2010
P. C. Schillig G. P. Tsoflias J. A. Roberts E. M. Patterson J. F. Devlin

[1] In this study, we evaluate the use of ground‐penetrating radar (GPR) to investigate the effects of bacterial activity in water saturated sand. A 90‐day laboratory‐scale controlled experiment was conducted in a flow‐through polycarbonate sandbox using groundwater from the Kansas River alluvial aquifer as inoculum. After 40 days of collecting baseline data, bacterial growth was stimulated in ...

Journal: :Applied Computational Electromagnetics Society Journal 2021

In this article, I propose a new method for calculating and visualizing the pulse radiation within depth range commonly used by Ground Penetrating Radar (GPR). The text describes illustrates propagation with several examples. One conventional is also applied quick comparison. can be to optimize GPR antennas transmit shapes.

2015
John H. Bradford Jacob C. Deeds

Offset-dependent reflectivity or amplitude-variationwith-offset AVO analysis of ground-penetrating radar GPR data may improve the resolution of subsurface dielectric permittivity estimates. A horizontally stratified medium has a limiting layer thickness below which thin-bed AVO analysis is necessary. For a typical GPR signal, this limit is approximately 0.75 of the characteristic wavelength of ...

2017
Fawzy Abujarad

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...

2003
Young-Jin Park Kwan-Ho Kim Sung-Bae Cho Dong-Wook Yoo Dong-Gi Youn Young-Kyung Jeong

** Microline Co., Ltd. Shinnae Techno-Town 801, Sangbong, Seoul, 131-220, Korea Abstract A ground penetrating radar (GPR) using short-pulse is developed in order to detect small and shallow metal objects buried under the ground. A bistatic mode in which the GPR system uses separate transmitting and receiving antennas is applied. A modified fat dipole antenna is developed for the transmitting an...

2013
Jean-Remi Dujardin Maksim Bano

Most Ground Penetrating Radar (GPR) measurements are performed on nearly flat areas. If strongly dipping reflections and/or diffractions are present in the GPR data, a classical migration processing step is needed in order to determine the geometries of shallow structures. Nevertheless, a standard migration routine is not suitable for GPR data collected on areas showing a variable and large top...

2010
PRATYUSH VAID

Landmines are affecting the lives and livelihood of millions of people around the world. The video impulse ground penetrating radar system for detection for small and shallow buried objects has been developed. The hardware combines commercially available components with components specially developed or modified for being used in the system. The GPR system has been desired to measure accurately...

Journal: :IOP conference series 2022

Abstract Ground Penetrating Radar (GPR) is one of a new instrument in the field survey that has emerge along with advancement world technology. The non-destructive technique (NDT) was introduced GPR able to be used assessing condition pavement structure and condition. This data can assess underground features thus detect any anomalies buried such as cable pipe. current very destructive cost lot...

2003
Lawrence Carin

GPR senses electrical inhomogeneities, with these manifested, for example, by the electrical contrast of a metal mine in the presence of a far-less-conducting soil background. Of much more difficulty, GPR senses the electrical inhomogeneity caused by a dielectric (plastic) landmine in the presence of soil. Often this contrast is very weak, implying that the landmine GPR signal is very small. Th...

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