Article
Geochemistry & Geophysics
Yue Yu, Chi-Chih Chen
Summary: This method combines SP data collected from at least three arbitrary antenna orientations to produce FP scattering matrix for subsurface target classification. Analysis of errors in the proposed SP-derived FP scattering matrix components due to the presence of cross-polarization component in practical SP antennas and random noise is also provided. Simulation and measurement examples demonstrate the application of the proposed SP-to-FP method in GPR target classification.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Environmental Sciences
Xu Li, Shengbo Ye, Qingyang Kong, Chenyang Song, Xiaojun Liu, Guangyou Fang
Summary: This paper proposes a full-wave inversion real-time permittivity estimation method for stepped-frequency GPR, which improves the accuracy and efficiency of permittivity estimation by introducing a layered media detection model and optimizing waveform compensation.
Article
Remote Sensing
Tess Luo, Song Zhu, Yiliminuer Yikeremu, Jiasong Zhu, John van Genderen
Summary: This study proposes a method for preliminary diagnosing large-scale culverts based on GPR wave attributes, which includes evaluating soil compactness, investigating soil moisture, and overlaying the results to pinpoint potential degradations. The method was validated through case studies on two long-distance culverts. The results indicate that this method can provide quick reference to improve GPR survey efficiency and reduce workload, facilitating large-scale GPR culvert surveys and safeguarding the water system.
GEO-SPATIAL INFORMATION SCIENCE
(2023)
Article
Computer Science, Interdisciplinary Applications
J. Hunziker, E. C. Slob, J. Irving
Summary: To address the computational cost issue in modeling GPR reflection data on glaciers, the authors propose a semi-analytical method based on the assumption of a homogeneous background medium. By representing scattering surfaces with planar elements and considering the antenna radiation pattern, this method can produce realistic 3D GPR data in a fast and memory efficient way. The algorithm is validated with an analytical solution for a layered model and applied to simulate radar data for the Otemma glacier in Switzerland.
COMPUTERS & GEOSCIENCES
(2023)
Article
Geochemistry & Geophysics
Hai Liu, Zhijie Chen, Hantao Lu, Feng Han, Chao Liu, Jing Li, Jie Cui
Summary: In this letter, a modified migration algorithm is proposed for reconstructing the geometric structure of a subsurface object from ground penetrating radar (GPR) data. The algorithm corrects for the influence of the antenna radiation pattern in subsurface soil and has been verified through numerical, laboratory, and field experiments. The results demonstrate the superiority of the modified migration algorithm in suppressing undesired diffractive artifacts while preserving reflection amplitudes in the migrated images.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2022)
Article
Construction & Building Technology
Rui He, Na Luna Lu
Summary: With the increasing use of electronics in the information age, understanding the dielectric properties of concrete is crucial for smart infrastructure development and efficient nondestructive testing and monitoring of concrete structures. This study investigated the dielectric properties of concrete samples with different water-to-cement ratios during the hardening process using a ground penetrating radar (GPR) system. The results have the potential to be used for non-destructively assessing the quality and uniformity of concrete hydration in field.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Environmental Sciences
Shuai Pi, Tianhao Wang, Jun Lin
Summary: This paper proposes a novel ultra-wideband bow-tie antenna for ground-penetrating radar (GPR) systems. By designing a resistive loaded antenna with a metal reflector and metamaterial loading, the antenna achieves directional gain and high bandwidth. Experimental results show that the fabricated antenna has a lowest frequency of 317 MHz, a relative bandwidth of 98.6%, a peak gain of 9.3 dBi, and a compact size of only 0.38λ at the lowest frequency. Furthermore, the antenna is suitable for deep penetration and high-resolution detection in GPR systems, benefiting the imaging of underground structures.
Article
Geochemistry & Geophysics
Maria Garcia-Fernandez, Guillermo Alvarez-Narciandi, Yuri Alvarez Lopez, Fernando Las-Heras
Summary: The usage of unmanned aerial vehicles (UAVs)-based ground penetrating radar (GPR) systems has gained interest due to their advantages over ground-based systems in terms of contactless inspection and capability to reach difficult-to-access areas. Improving the scanning throughput while maintaining imaging capabilities is a challenge for these systems. This contribution presents an array-based GPR-SAR system for subsurface imaging, which significantly improves the scanning throughput and provides enhanced detection capabilities through the coherent combination of all transmitting-receiving channels of the array.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2023)
Article
Geochemistry & Geophysics
Leon Steinbeck, Achim Mester, Egon Zimmermann, Anja Klotzsche, Stefan Van Waasen
Summary: This article presents a novel calibration approach that uses internal signal reflections in the measurement system to derive the system-specific time delay without the necessity of knowing the medium between the antennas. The approach is capable of identifying and correcting for hardware fabrication differences, as well as temporal changes in time-zero during experiments. It reduces the error in time-zero to below 25 ps, enabling high-resolution soil research. The approach requires no additional calibration setups or measurements since all necessary data can be acquired during the original soil measurement.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2023)
Article
Engineering, Electrical & Electronic
Wouter van Verre, Frank J. W. Podd, Xianyang Gao, Liam A. Marsh, John L. Davidson, David J. Daniels, Anthony J. Peyton
Summary: The combination of metal detection (MD) and ground-penetrating radar (GPR) has been successfully used to combat the threat of buried antipersonnel landmines. This integration presents challenges, such as the proximity of the GPR antennas to the MD coils affecting MD performance. The study investigated the impact of traditional solid bowtie antenna design on MD and proposed modifications to reduce eddy currents, with significant reduction in MD response without affecting RF performance.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Review
Forestry
Brunela Pollastrelli Rodrigues, Christopher Adam Senalik, Xi Wu, James Wacker
Summary: This paper is a review of studies on the use of ground penetrating radar (GPR) for wood structures, highlighting its advantages as an inspection tool and the gaps in knowledge for its practical application. Despite laboratory studies, the use of GPR on large wood structures remains limited. Key knowledge gaps include distinguishing internal feature types and identifying internal decay.
Article
Geochemistry & Geophysics
Bin Liu, Yuxiao Ren, Hanchi Liu, Hui Xu, Zhengfang Wang, Anthony G. Cohn, Peng Jiang
Summary: GPRInvNet is a deep neural network architecture for inverting subsurface structures from ground-penetrating radar (GPR) B-Scan data, capable of effectively reconstructing complex defects in tunnel linings. By fusing features from adjacent traces to enhance each trace and further condensing features, it achieves accurate spatial alignment.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2021)
Article
Computer Science, Artificial Intelligence
Xin Wang, Duan Zhao, Yikun Wang
Summary: The Shearer drum automatic height adjustment strategy under mining environment is based on the recognition of coal-rock interface using ground penetrating radar (GPR). A model was built to study radar echo in complex coal seam, and experiments were conducted in a coal mine working face in China. The results show that this method can reliably and accurately detect the coal-rock interface even in dynamic scenarios, with an accuracy of 95% and an error of less than 2% in A-scan mode. The radar antenna can be fixed to the shearer rocker arm in real time during mining to detect the thickness of the coal seam.
INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE
(2023)
Review
Construction & Building Technology
Tim Klewe, Christoph Strangfeld, Sabine Kruschwitz
Summary: This article provides an overview of various approaches to moisture measurements with Ground Penetrating Radar (GPR) in civil engineering, emphasizing signal features and discussing their limitations. The study encourages the consideration of approaches that combine different signal features for further developments in the field.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Environmental Sciences
Hui Wang, Shan Ouyang, Qinghua Liu, Kefei Liao, Lijun Zhou
Summary: Accurately estimating the relative permittivity of buried targets is crucial for reconstructing geological structures. This study proposes a method based on a deep neural network to effectively identify the dielectric properties of buried targets and improve the accuracy of estimating the relative permittivity.
