Results 31 to 40 of about 21,103 (230)

GPR clutter amplitude processing to detect shallow geological targets [PDF]

open access: yes, 2018
The analysis of clutter in A-scans produced by energy randomly scattered in some specific geological structures, provides information about changes in the shallow sedimentary geology.
Pérez Gracia, María de la Vega   +2 more
core   +2 more sources

DETERMINATION OF THE GROUND-WATER LEVEL BY MODERN NON-DISTRUCTIVE METHODS (GPR TECHNOLOGY) [PDF]

open access: yesAerul şi Apa: Componente ale Mediului, 2011
Determination of the ground-water level by modern non-dis¬tructive methods (ground-penetrating radar technology). Ground Penetrating Radar (GPR) is now a well-accepted geophysical technique, which unfortunately in our country its less used. Historically,
I. C. NICU, Gh. ROMANESCU
doaj  

A Multiple Migration and Stacking Algorithm Designed for Land Mine Detection [PDF]

open access: yes, 2014
This paper describes a modification to a standard migration algorithm for land mine detection with a ground-penetrating radar (GPR) system. High directivity from the antenna requires a significantly large aperture in relation to the operating wavelength,
Daniels, David   +2 more
core   +1 more source

GPR Imaging for Deeply Buried Objects: A Comparative Study Based on Compositing of Scanning Frequencies and a Chirp Excitation Function

open access: yesGeosciences, 2019
Compositing of ground penetrating radar (GPR) scans of differing frequencies have been found to produce cleaner images at depth using the Gaussian mixture model (GMM) feature of the expectation-maximization (EM) algorithm.
Roger Tilley   +2 more
doaj   +1 more source

Application of GPR Underground Pipeline Detection Technology in Urban Complex Geological Environments

open access: yesGeofluids, 2022
In the process of the continuous construction of underground pipelines, underground pipe network systems have become increasingly complex, which puts forward higher requirements for normal operation and maintenance.
Xiaoqiang Liang   +4 more
doaj   +1 more source

Comparison of PCA and ICA based clutter reduction in GPR systems for anti-personal landmine detection [PDF]

open access: yes, 2001
This paper presents statistical signal processing approaches for clutter reduction in Stepped-Frequency Ground Penetrating Radar (SF-GPR) data. In particular, we suggest clutter/signal separation techniques based on principal and independent component ...
Jakobsen, Kaj Bjarne   +3 more
core   +2 more sources

Time-lapse geophysical investigations over a simulated urban clandestine grave [PDF]

open access: yes, 2008
A simulated clandestine shallow grave was created within a heterogeneous, made-ground, urban environment where a clothed, plastic resin, human skeleton, animal products, and physiological saline were placed in anatomically correct positions and re ...
Cassella, JP   +3 more
core   +2 more sources

Numerical study of electromagnetic wave propagation characteristics in collapsed building for rescue radar applications

open access: yesETRI Journal, 2018
Since the Gyeongju earthquakes in 2016, there have been increased research interests in the areas of seismic design, building collapse, and rescue radar applications in Korea. Ground penetrating radar (GPR) is a nondestructive electromagnetic method that
Kyeol Kwon   +4 more
doaj   +1 more source

A Critical Review and Bibliometric Analysis on Applications of Ground Penetrating Radar in Science Based on Web of Science Database

open access: yesEng, 2023
Ground-penetrating radar (GPR) is an established technology with a wide range of applications for civil engineering, geological research, archaeological studies, and hydrological practices.
Nehal Elshaboury   +3 more
doaj   +1 more source

The WISDOM Radar: Unveiling the Subsurface Beneath the ExoMars Rover and Identifying the Best Locations for Drilling [PDF]

open access: yes, 2017
The search for evidence of past or present life on Mars is the principal objective of the 2020 ESA-Roscosmos ExoMars Rover mission. If such evidence is to be found anywhere, it will most likely be in the subsurface, where organic molecules are shielded ...
Alain Herique   +33 more
core   +3 more sources

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