On the Development and Application of Airborne GPR Solutions

Emilsson, Jesper; Friborg, Johan; Gustafsson, Jaana; Adcock, Jimmy; Viberg, Andreas

doi:10.3997/1365-2397.fb2022065

Cited by 3 publications

(4 citation statements)

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“…Based on Eqs. 1-3, R1 is a function of the drone's altitude (H), speed of the electromagnetic wave in material (v), and radar center frequency (f) [29][30][31].…”

Section: Methodsmentioning

confidence: 99%

“…Balancing depth and resolution is an ongoing challenge, and it is essential to strike a harmonious equilibrium to obtain the most informative and high-quality data during drone-based GPR surveys. To estimate the radius 𝑅2 of the maximum exposure area under the drone at a depth under the earth's surface (Figure 5), and additional parameters such as vertical resolution (𝐷 𝑅 ) and minimum size (𝐴 𝑚𝑖𝑛 ) of a detectable object, additional equations are required [28][29][30][31]:…”

Section: 𝑉 = 300/√mentioning

confidence: 99%

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Advancements in Drone-Based (UAV) Ground Penetrating Radar for Accurate Boundary Mapping between Disturbed Clayey Soil and Natural Rock

Frid,

Frid

2024

Preprint

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The main goal of the research is to assess the effectiveness of aerial ground-penetrating radar (GPR) in delineating boundaries between disturbed clayey ground and rock formations along the old Wadi. The study also tackles technical challenges associated with drone-based GPR applications in urban open areas, considering geological heterogeneity, topographic variations, and environmental conditions. The potential of using drone-based GPR equipped with an unshielded dipole antenna as a transformative tool in geospatial analysis was demonstrated. The research encompasses academic insights and field borehole drilling experiments to validate the accuracy and reliability of drone-based GPR data in real-world scenarios. Anticipated contributions include advancements in understanding drone-based GPR technology for mapping disturbed soil boundaries in foundation engineering applications and other relevant areas and recommendations for optimizing its performance in challenging terrains.

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“…Based on Eqs. 1-3, R1 is a function of the drone's altitude (H), speed of the electromagnetic wave in material (v), and radar center frequency (f) [29][30][31].…”

Section: Methodsmentioning

confidence: 99%

Section: 𝑉 = 300/√mentioning

confidence: 99%

Advancements in Drone-Based (UAV) Ground Penetrating Radar for Accurate Boundary Mapping between Disturbed Clayey Soil and Natural Rock

Frid,

Frid

2024

Preprint

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show abstract

“…Figure 3 shows the scheme for calculating the GPR parameters. Following [43][44][45][46], the general expression for the radius R0 of the maximum exposure area under the GPR center on the Earth's surface can be calculated as a function of the GPR altitude above the Earth's surface H, the center frequency of GPR antenna f, and dielectric permittivity of the medium 𝜀 as follows: Following [43][44][45][46], the general expression for the radius R 0 of the maximum exposure area under the GPR center on the Earth's surface can be calculated as a function of the GPR altitude above the Earth's surface H, the center frequency of GPR antenna f, and dielectric permittivity of the medium ε a as follows:…”

Section: The Survey Parametersmentioning

confidence: 99%

“…Balancing the depth and resolution is an ongoing challenge, and it is essential to strike a harmonious equilibrium to obtain the most informative and high-quality data during the GPR survey. The vertical resolution (D Z ) and minimum size (A min ) of detectable objects can be calculated as follows [33,[43][44][45][46]:…”

Section: The Survey Parametersmentioning

confidence: 99%

A Case Study of the Integration of Ground-Based and Drone-Based Ground-Penetrating Radar (GPR) for an Archaeological Survey in Hulata (Israel): Advancements, Challenges, and Applications

Frid,

Frid

2024

Applied Sciences

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This study delves into the fusion of ground-based and drone-based ground-penetrating radar (GPR) technologies in archaeological exploration. Set against the backdrop of the Hulata solar panel construction site in Israel, the research confronts daunting obstacles such as clayey soil, accurate detection of small objects, and the imperative of timely reporting crucial for construction management. The drone-based GPR, a testament to technological innovation, showcases remarkable adaptability to challenging terrains, dispelling doubts about electromagnetic wave decay in clayey soil. Methodologically, the study employs detailed orthophoto mapping and grid-type surveys. The correlation of the results significantly bolsters the reliability of archaeological discoveries, uncovering scattered artifacts buried approximately 1–1.5 m below the surface. Meticulous excavations validate the geophysical surveys, affirming the presence of structures constructed from boulders. The application at the Hulata site validates the adaptability of drone-based GPR in challenging terrains. It provides a swift, cost-effective, and minimally invasive alternative to traditional excavation techniques, thereby transforming the field of archaeology.

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UAV-mounted Ground Penetrating Radar: an example for the stability analysis of a mountain rock debris slope

Salvini,

Beltramone,

De Lucia

et al. 2023

J. Mt. Sci.

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This paper describes scientific research conducted to highlight the potential of an integrated GPR-UAV system in engineering-geological applications. The analysis focused on the stability of a natural scree slope in the Germanasca Valley, in the western Italian Alps. As a consequence of its steep shape and the related geological hazard, the study used different remote sensed methodologies such as UAV photogrammetry and geophysics survey by a GPR-drone integrated system. Furthermore, conventional in-situ surveys led to the collection of geological and geomorphological data. The use of the UAV-mounted GPR allowed us to investigate the bedrock depth under the detrital slope deposit, using a non-invasive technique able to conduct surveys on inaccessible areas prone to hazardous conditions for operators. The collected evidence and the results of the analysis highlighted the stability of the slope with Factors of Safety, verified in static conditions (i.e., natural static condition and static condition with snow cover), slightly above the stability limit value of 1. On the contrary, the dynamic loading conditions (i.e., seismic action applied) showed a Factor of Safety below the stability limit value. The UAV-mounted GPR represented an essential contribution to the surveys allowing the definition of the interface debris deposit-bedrock, which are useful to design the slope model and to evaluate the scree slope stability in different conditions.

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On the Development and Application of Airborne GPR Solutions

Cited by 3 publications

References 0 publications

Advancements in Drone-Based (UAV) Ground Penetrating Radar for Accurate Boundary Mapping between Disturbed Clayey Soil and Natural Rock

Advancements in Drone-Based (UAV) Ground Penetrating Radar for Accurate Boundary Mapping between Disturbed Clayey Soil and Natural Rock

A Case Study of the Integration of Ground-Based and Drone-Based Ground-Penetrating Radar (GPR) for an Archaeological Survey in Hulata (Israel): Advancements, Challenges, and Applications

UAV-mounted Ground Penetrating Radar: an example for the stability analysis of a mountain rock debris slope

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