Results 11 to 20 of about 1,351 (190)

Development of Data Processing Tools for the Analysis of Radargrams in Utility Detection Using Ground Penetrating Radar [PDF]

open access: yesJournal of Telecommunications and Information Technology, 2017
The extraction of quantitative information from Ground Penetrating Radar (GPR) data sets (radargrams) to detect and map underground utility pipelines is a challenging task.
Florence Sagnard
doaj   +2 more sources

Synthetic 2D GPR constant-offset radargrams: Modelling of responses of air-filled cavities with various shapes [PDF]

open access: yesContributions to Geophysics and Geodesy
The present study describes results from synthetic modelling of 2D GPR constant-offset radargrams (B-scans) for air-filled cavities with different shapes. The primary objective of these simulations was to enhance the understanding of actual GPR data when
Farhad HAMEKHANI, Roman PAŠTEKA
doaj   +2 more sources

Subgrade Distress Detection in GPR Radargrams Using an Improved YOLOv11 Model

open access: yesSustainability
This study compares three detectors—Single Shot MultiBox Detector (SSD), Faster Region-based Convolutional Neural Network (Faster R-CNN), and Only Look Once v11 (YOLOv11)—for detecting subgrade distress in GPR radargrams. SSD converges fastest but shows weaker detection performance, while Faster R-CNN achieves higher localization accuracy at the cost ...
Mingzhou Bai   +3 more
openaire   +2 more sources

Automated extraction of hyperbolic reflections and data processing from radargrams acquired by GPR scanning technology [PDF]

open access: yes, 2022
Докторска дисертација посвећена је области аутоматизоване обраде радарграма формираних применом георадара. Развијени су и имплементирани нови алгоритми за аутоматизовану детекцију и одређивање координата темена хиперболичних рефлексија као и издвајање ...
Bugarinović, Željko
core   +6 more sources

Extracting tomographic images of interior structures of cylindrical objects and trees using Ground Penetrating Radar method

open access: yesResults in Engineering, 2022
In this study, the Ground Penetrating Radar (GPR), which is a geophysical prospecting method for shallow-depth research, is applied on cylindrical objects in order to extract information about their internal structures.
Orhan Apaydın   +5 more
doaj   +1 more source

Inferring Ice Fabric From Birefringence Loss in Airborne Radargrams: Application to the Eastern Shear Margin of Thwaites Glacier, West Antarctica [PDF]

open access: yes, 2021
In airborne radargrams, undulating periodic patterns in amplitude that overprint traditional radiostratigraphic layering are occasionally observed, however, they have yet to be analyzed from a geophysical or glaciological perspective. We present evidence
D. M. Schroeder   +20 more
core   +6 more sources

Subsurface Investigation of Voids using Ground Penetration Radar in Bismayah Site, Southern Baghdad, Central Iraq

open access: yesIraqi Geological Journal, 2022
Ground Penetration Radar investigation was used to survey the Bismayah pumping station site in Baghdad. The survey includes fifteen Ground Penetration Radar survey lines inside and outside the site, an antenna of 250 MHz was used.
Hussein Abdulrahim Al-Saady   +2 more
doaj   +1 more source

Discharge Measurement for a Part of Lesser Zab River by Using Georadar and Current Meter at Klesa of Erbil, NE Iraq

open access: yesIraqi Geological Journal, 2022
A Ground Penetrating Radar for bathymetry and water current velocity was used to estimate the discharge value of Lesser Zab River at Klesa station with coordinates (35º 53’ 08.21′′ N, 44º 35′ 35.90′′ E). Two traverses were taken across the river
Galawezh Bapeer   +4 more
doaj   +1 more source

Archive of Multi-Band SHARAD Radargrams

open access: yes, 2020
Radargrams in 32-bit floating point format of SHARAD data processed in two frequency sub-bands ("High frequency" is associated with file designator FHF and and "Low frequency" with FLF). Later additions may use "_H_" and "_L_" descriptors. All images are
Bruce Campbell (9039485)
core   +1 more source

Attention Multi-Scale Network for Automatic Layer Extraction of Ice Radar Topological Sequences

open access: yesRemote Sensing, 2021
Analyzing the surface and bedrock locations in radar imagery enables the computation of ice sheet thickness, which is important for the study of ice sheets, their volume and how they may contribute to global climate change.
Yiheng Cai   +5 more
doaj   +1 more source

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