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Journal articles on the topic 'Ground Penetration Radar'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

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1

Aydın, Ali, Ali Kaya, and Erdal Akyol. "Truffes Detection Using Ground Penetration Radar." Pamukkale University Journal of Engineering Sciences 21, no. 6 (2015): 276–81. http://dx.doi.org/10.5505/pajes.2014.84856.

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2

Leucci, Giovanni. "Ground Penetrating Radar: The Electromagnetic Signal Attenuation and Maximum Penetration Depth." Scholarly Research Exchange 2008 (2008): 1–7. http://dx.doi.org/10.3814/2008/926091.

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3

Sytnik, O. V., S. A. Masalov, and G. P. Pochanin. "HOMOMORPHIC SIGNAL PROCESSING ALGORITHM OF GROUND PENETRATION RADAR." Telecommunications and Radio Engineering 75, no. 5 (2016): 413–23. http://dx.doi.org/10.1615/telecomradeng.v75.i5.30.

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4

Quinta-Ferreira, Mario. "Ground Penetration Radar in Geotechnics. Advantages and Limitations." IOP Conference Series: Earth and Environmental Science 221 (March 1, 2019): 012019. http://dx.doi.org/10.1088/1755-1315/221/1/012019.

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5

Tamura, Larissa Natsumi, Renato Paes de Almeida, Fabio Taioli, André Marconato, and Liliane Janikian. "Ground Penetrating Radar investigation of depositional architecture: the São Sebastião and Marizal formations in the Cretaceous Tucano Basin (Northeastern Brazil)." Brazilian Journal of Geology 46, no. 1 (2016): 15–27. http://dx.doi.org/10.1590/2317-4889201620150031.

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ABSTRACT: One key factor for the advance in the study of fluvial deposits is the application of geophysical methods, being the Ground Penetrating Radar one of special value. Although applied to active rivers, the method is not extensively tested on the rock record, bearing interest for hydrocarbon reservoir analogue models. The São Sebastião and Marizal formations were the subject of previous studies, which made possible the comparison of Ground Penetrating Radar survey to previous stratigraphic studies in order to identify the best combination of resolution, penetration and antenna frequency

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6

Siregar, Hans Elmaury Andreas. "GROUND PENETRATING RADAR DATA ANALYSIS BY USING MODELLING WITH FINITE DIFFERENCE METHOD: CASE STUDY IN BELAWAN PORT." Buletin Sumber Daya Geologi 11, no. 1 (2016): 15–24. http://dx.doi.org/10.47599/bsdg.v11i1.7.

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Ground Penetrating Radar (GPR) is one of non destructive geophysics methods which is appropriate used to identify subsurface object with depth penetration less than 70 meter. High data resolution as well as relatively unprolonged and manageable data acquisition make this method becoming convenient supporting method to increase near surface data for other geophysics methods. The depth penetration of GPR varies with the frequency of antenna. Getting optimum depth penetration before field acquisition data some numerical simulation should be accomplished in order to perceive antenna frequency and

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7

Fisher, Elizabeth, George A. McMechan, and A. Peter Annan. "Acquisition and processing of wide‐aperture ground‐penetrating radar data." GEOPHYSICS 57, no. 3 (1992): 495–504. http://dx.doi.org/10.1190/1.1443265.

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A 40-channel wide‐aperture ground penetrating radar (GPR) data set was recorded in a complicated fluvial/aeolian environment in eastern Canada. The data were collected in the multichannel format usually associated with seismic reflection surveys and were input directly into a standard seismic processing sequence (filtering, static corrections, common‐midpoint gathering, velocity analysis, normal‐ and dip‐moveout corrections, stacking and depth migration). The results show significant improvements, over single‐channel recordings, in noise reduction and depth of penetration (by stacking), and in

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8

Lee, Won-hee, Saheed Mayowa Taiwo, Jong-hyun Lee, and Hyung-Koo Yoon. "Efficient Method for Detecting Sub-basement Through Ground Penetration Radar." Korean Society of Hazard Mitigation 18, no. 1 (2017): 137–44. http://dx.doi.org/10.9798/kosham.2018.18.1.137.

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9

Smith, Derald G., and Harry M. Jol. "Ground penetrating radar: antenna frequencies and maximum probable depths of penetration in Quaternary sediments." Journal of Applied Geophysics 33, no. 1-3 (1995): 93–100. http://dx.doi.org/10.1016/0926-9851(95)90032-2.

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10

Goodman, Dean. "Ground‐penetrating radar simulation in engineering and archaeology." GEOPHYSICS 59, no. 2 (1994): 224–32. http://dx.doi.org/10.1190/1.1443584.

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Forward modeling of ground penetration radar is developed using exact ray‐tracing techniques. Structural boundaries for a ground model are incorporated via a discrete grid with interfaces described by splines, polynomials, and in the case of special structures such as circular objects, the boundaries are given in terms of their functional formula. In the synthetic radargram method, the waveform contributions of many different wave types are computed. Using a finely digitized antenna directional response function, the radar crosssection of buried targets and the effective area of the receiving

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11

Bernatek-Jakiel, Anita, and Marta Kondracka. "Detection of Soil Pipes Using Ground Penetrating Radar." Remote Sensing 11, no. 16 (2019): 1864. http://dx.doi.org/10.3390/rs11161864.

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Soil piping leads to land degradation in almost all morphoclimatic regions. However, the detection of soil pipes is still a methodological challenge. Therefore, this study aims at testing ground penetrating radar (GPR) to identify soil pipes and to present the complexity of soil pipe networks. The GPR surveys were conducted at three sites in the Bieszczady Mountains (SE Poland), where pipes develop in Cambisols. In total, 36 GPR profiles longitudinal and transverse to piping systems were made and used to provide spatial visualization of pipe networks. Soil pipes were identified as reflection h

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12

Dong, Tan Phuoc, and Huu Phu Bui. "Design of Shielding System for Impulse Ground Penetrating Radar Applications." Key Engineering Materials 656-657 (July 2015): 646–51. http://dx.doi.org/10.4028/www.scientific.net/kem.656-657.646.

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In this paper, we propose a shielding system for impulse ground penetrating radar applications (GPR). The structure of shielding system is designed for our real impulse GPR application at 200 MHz central frequency for improving the deep penetration. The shielding system makes high quality of signal transmission from transmitter antenna to receiver antenna for impulse GPR system. It not only makes lowest T/R antenna coupling, high performance of antennas, preventing external noise but also reduces unnecessary air radiation which damages to the health of GPR user. A commercial absorbing material

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13

Noviadi, Yogi. "CHARACTERISTIC OF SHALLOW SUBSURFACE LITHOLOGY BASED ON GROUND PROBING RADAR DATA INTERPRETATION AT TEMAJU COAST, SAMBAS DISTRICT, WEST KALIMANTAN PROVINCE." BULLETIN OF THE MARINE GEOLOGY 29, no. 2 (2016): 61. http://dx.doi.org/10.32693/bomg.29.2.2014.66.

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In order to know the subsurface lithology characteristic at Temaju coast, the Ground Probing Radar (GPR) detection have been carried out. The detection was done along the coast around 11 GPR track line. The equipment which was used are SIR III with 270 MHz antenna. Based on the analysis results of GPR image data which were correlated with the exposed of surface lithology and core drilling log, show that the maximum penetration is about 10 m with the lithology composition as follow: the upper most layer is characterized by sand deposits with about 2 â€“ 3 m width. Below the sand layer is charac

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14

Cardimona, Steven J., William P. Clement, and Katharine Kadinsky‐Cade. "Seismic reflection and ground‐penetrating radar imaging of a shallow aquifer." GEOPHYSICS 63, no. 4 (1998): 1310–17. http://dx.doi.org/10.1190/1.1444432.

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In 1995 and 1996, researchers associated with the US Air Force’s Phillips and Armstrong Laboratories took part in an extensive geophysical site characterization of the Groundwater Remediation Field Laboratory located at Dover Air Force Base, Dover, Delaware. This field experiment offered an opportunity to compare shallow‐reflection profiling using seismic compressional sources and low‐frequency ground‐penetrating radar to image a shallow, unconfined aquifer. The main target within the aquifer was the sand‐clay interface defining the top of the underlying aquitard at 10 to 14 m depth. Although

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15

Lombardi, Federico, Maurizio Lualdi, Francesco Picetti, Paolo Bestagini, Gerardus Janszen, and Luca Angelo Di Landro. "Ballistic Ground Penetrating Radar Equipment for Blast-Exposed Security Applications." Remote Sensing 12, no. 4 (2020): 717. http://dx.doi.org/10.3390/rs12040717.

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Among all the forensic applications in which it has become an important exploration tool, ground penetrating radar (GPR) methodology is being increasingly adopted for buried landmine localisation, a framework in which it is expected to improve the operations efficiency, given the high resolution imaging capability and the possibility of detecting both metallic and non-metallic landmines. In this context, this study presents landmine detection equipment based on multi-polarisation: a ground coupled GPR platform, which ensures suitable penetration/resolution performance without affecting the saf

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McCallum, Adrian. "Quantitative Comparison of Cone Penetration Testing Tip Resistance Data with Ground-Penetrating Radar Amplitude Data." Journal of Cold Regions Engineering 34, no. 2 (2020): 04020003. http://dx.doi.org/10.1061/(asce)cr.1943-5495.0000206.

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17

Omini, Etimita Osuwake, and Olory Magnus Akpang. "CAVITY DETECTION UNDER RE-ENFORCED CONCRETE FLOOR USING GROUND PENETRATION RADAR." Engineering Heritage Journal 2, no. 2 (2018): 11–18. http://dx.doi.org/10.26480/gwk.02.2018.11.18.

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18

Akpabio, Godfrey, Ubong Johnson, Calrlos Vargas Cana, and Okechukwu Agbasi. "Peat stratigraphy mapping using ground penetration radar and geotechnical engineering implications." International Journal of Advanced Geosciences 5, no. 2 (2017): 46. http://dx.doi.org/10.14419/ijag.v5i2.7890.

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A Combined Land and Marine Ground Penetrating Radar (GPR) surveys was carried out in Southwestern part of Lagos, Badia, Nigeria with a view of delineating the subsurface peat stratigraphy that would aid geotechnical engineering design of the appropriate soil stability processes. The GPR study was conducted along eight parallel traverses trending East-West, using the Geophysical survey system incorporated (GSSI) SIR-3000 200MHZ Monostatic shielded antenna. Geographically, the study area is approximately between latitude 715000N and 716000N and longitude 538600E and 540300E of the universal trav

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19

Paz, Maria Catarina, Francisco J. Alcalá, and Luís Ribeiro. "Ground Penetrating Radar Attenuation Expressions in Shallow Groundwater Research." Journal of Environmental and Engineering Geophysics 25, no. 1 (2020): 153–60. http://dx.doi.org/10.2113/jeeg19-039.

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The electromagnetic-wave attenuation coefficient determines the overall resolution and effective penetration depth of ground penetrating radar (GPR) surveys. Despite this relevance to the design of proper GPR surveys, the attenuation expressions are rarely used in the applied shallow groundwater research (SGR) literature. This work examines the status of the attenuation expressions in SGR. For this, 73 GPR case studies (in 47 papers), including some information concerning the attenuation variables and parameters, were selected to build a database. From these, 18 cases (in 10 papers) provided a

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20

Izzati Abd Karim, Nurul, Samira Albati Kamaruddin, and Rozaimi Che Hasan. "Performance of Soil Water Content Using Ground Penetrating Radar with Different Antenna Frequencies." International Journal of Engineering & Technology 7, no. 2.29 (2018): 815. http://dx.doi.org/10.14419/ijet.v7i2.29.14263.

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Accurate measurements of Soil Water Content (SWC) with applicable and relevant support are essential in many fields of earth and soil engineering research. Ground Penetrating Radar (GPR) is a geophysical tool that measures and provides accurate results for determination of the SWC. To prove the accuracy of SWC measurement using GPR, a field survey was performed in peat soil. This paper presents a fieldwork survey with the aim of assessing the SWC measurement using GPR. The survey work was conducted at Johor Bharu using different antenna frequencies (250 and 700 MHz). Five profiles, which is 5m

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21

Rodríguez-Abad, Isabel, Gilles Klysz, Rosa Martínez-Sala, Jean Paul Balayssac, and Jesús Mené-Aparicio. "Application of ground-penetrating radar technique to evaluate the waterfront location in hardened concrete." Geoscientific Instrumentation, Methods and Data Systems 5, no. 2 (2016): 567–74. http://dx.doi.org/10.5194/gi-5-567-2016.

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Abstract. The long-term performance of concrete structures is directly tied to two factors: concrete durability and strength. When assessing the durability of concrete structures, the study of the water penetration is paramount, because almost all reactions like corrosion, alkali–silica, sulfate, etc., which produce their deterioration, require the presence of water. Ground-penetrating radar (GPR) has shown to be very sensitive to water variations. On this basis, the objective of this experimental study is, firstly, to analyze the correlation between the water penetration depth in concrete sam

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22

Abdelmawla, Ahmad, and S. Sonny Kim. "Application of Ground Penetrating Radar to Estimate Subgrade Soil Density." Infrastructures 5, no. 2 (2020): 12. http://dx.doi.org/10.3390/infrastructures5020012.

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Ground penetrating radar (GPR) technology has been widely used in pavement assessment over the last decade. Assessing the subgrade condition and monitoring its temporal variation provide valuable information regarding changes associated with pavement deterioration, allowing for the beneficial prediction of future road maintenance. This paper presents a method to estimate the density and water content of prepared subgrade soils of highly plastic silt using a 2 GHz GPR scan system and a simple exponential model. A bulk density prediction model was developed based on electromagnetic mixing theory

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23

Ruiz, Eder, Daniel Chaparro-Arce, John Pantoja, Felix Vega, Chaouki Kasmiv, and Fahad Al Yafei. "Ground Penetrating Radar Radargram Filter using Singularity Expansion Method." Applied Computational Electromagnetics Society 35, no. 11 (2021): 1437–38. http://dx.doi.org/10.47037/2020.aces.j.351187.

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In this paper, the singularity expansion method (SEM) is used to improve the signal-to-clutter ratio of radargrams obtained with a ground penetration radar (GPR). SEM allows to select the poles of the GPR signals corresponding to unwanted signals, clutter, and also reflections of specific buried objects. A highly reflective metallic material was used to assess the use of SEM as a tool to eliminate unwanted reflections and signals produced by a GPR. Selected clutter poles are eliminated from each frame of the SAR image in order to keep only desired poles for analysis. Finally, the reconstructed

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24

Singh, A., G. K. Meena, S. Kumar, and K. Gaurav. "ANALYSIS OF THE EFFECT OF INCIDENCE ANGLE AND MOISTURE CONTENT ON THE PENETRATION DEPTH OF L- AND S-BAND SAR SIGNALS INTO THE GROUND SURFACE." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences IV-5 (November 15, 2018): 197–202. http://dx.doi.org/10.5194/isprs-annals-iv-5-197-2018.

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<p><strong>Abstract.</strong> We study the functional relationship between the dielectric constant of soil-water mixture and penetration depth of microwave signals into the ground at different frequency (L&amp;amp;S) band and incidence angles. Penetration depth of microwave signals into the ground depends on the incidence angle and wavelength of radar pulses and also on the soil properties such as moisture content and textural composition. It has been observed that the longer wavelengths have higher penetration in the soil but the penetration capability decreases with inc

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25

Jol, Harry M. "Ground penetrating radar antennae frequencies and transmitter powers compared for penetration depth, resolution and reflection continuity1." Geophysical Prospecting 43, no. 5 (1995): 693–709. http://dx.doi.org/10.1111/j.1365-2478.1995.tb00275.x.

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26

Zhao, J., and D. Floricioiu. "THE PENETRATION EFFECTS ON TANDEM-X ELEVATION USING THE GNSS AND LASER ALTIMETRY MEASUREMENTS IN ANTARCTICA." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W7 (September 14, 2017): 1593–600. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w7-1593-2017.

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Synthetic Aperture Radar (SAR) has been widely used in many different fields, such as geoscience, climate monitoring, security-related applications. However, over natural terrain the radar signal has the ability to penetrate the ground surface which can cause the bias in the elevation measurements. The aim of the paper is to assess the SAR signal penetration effect on the TanDEM-X absolute elevation over ice and snow covered areas and it presents the results concerning the X-band SAR signal penetration effect on dry snow areas and blue ice region. Additionally, the relationship between SAR sig

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Isakova, E. P., S. M. Daniliev, and T. A. Mingaleva. "GPR for mapping fractures for the extraction of facing granite from a quarry: A case study from Republic of Karelia." E3S Web of Conferences 266 (2021): 07007. http://dx.doi.org/10.1051/e3sconf/202126607007.

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The main idea of the article is the problem of choosing the optimal complex of geophysical methods to study the coverage and localization of cavity in the rock massif. The necessity of using ground penetration radar (GPR) work on the facing stone deposits in the process of massif research has been identified and justified. Based on the study, the author proposed the use of two types of antennas with the aim of penetrating to different depths. The presented conclusions prove that using georadar for study of fracturing in a facing stone deposit could be effective.

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Hughes, Larry J. "Mapping contaminant-transport structures in karst bedrock with ground-penetrating radar." GEOPHYSICS 74, no. 6 (2009): B197—B208. http://dx.doi.org/10.1190/1.3223312.

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Ammonium perchlorate, a risk to human health, was used formerly to manufacture rocket fuel at the Naval Weapons Industrial Reserve Plant (NWIRP) McGregor, McLennon County, Texas. Perchlorate exists in several groundwater contaminant plumes, whose geometries were suspected to be influenced by transmissive bedrock structures. To identify these possible contaminant-transport pathways, a towed-array ground-penetrating radar (GPR) system was used to acquire 118 line-km of data across [Formula: see text] of the property. The shallow geology consists of bedrock limestone overlain by [Formula: see tex

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Spagnolo, Matteo, Edward C. King, David W. Ashmore, Brice R. Rea, Jeremy C. Ely, and Chris D. Clark. "Looking through drumlins: testing the application of ground-penetrating rada." Journal of Glaciology 60, no. 224 (2014): 1126–34. http://dx.doi.org/10.3189/2014jog14j110.

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AbstractGround-penetrating radar (GPR) is becoming a commonly applied technique in geomorphology. However, its use in the study of subglacial bedforms has yet to be fully explored and exploited. This paper presents the results of a GPR feasibility study conducted on a drumlinized terrain in Cumbria, UK, where five drumlins were investigated using multiple radar antenna frequencies. The site was selected for the presence of nearby bedrock outcrops, suggesting a shallow drumlinized diamict–bedrock contact and a permeable lithology. Despite the clayey sediment and unfavourable weather conditions,

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Chen, Yen-Chang, Su-Pai Kao, and Jhong-Hua Wu. "Measurement of stream cross section using ground penetration radar with Hilbert-Huang transform." Hydrological Processes 28, no. 4 (2013): 2468–77. http://dx.doi.org/10.1002/hyp.9755.

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31

Zhou, Daochuan, and Haitang Zhu. "Application of Ground Penetrating Radar in Detecting Deeply Embedded Reinforcing Bars in Pile Foundation." Advances in Civil Engineering 2021 (April 17, 2021): 1–13. http://dx.doi.org/10.1155/2021/4813415.

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Ground penetrating radar (GPR) has been widely used for nondestructive testings in civil engineering. However, the GPR has not been adequately applied in detecting deeply embedded reinforcing bars, which is usually difficult to be revealed in radar image due to the wave interference and attenuation in large depth penetration. This study presents a new approach for the GPR detection of deeply embedded reinforcing bars in the reinforced concrete pile foundation. The aim of the GPR survey is to determine the existence and the depth of internal reinforcing bars in the pile foundation for solving e

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Ye, Zijian, and Ying Ye. "Comparison of Detection Effect of Cavities Behind Shield Tunnel Segment Using Transient Electromagnetic Radar and Ground Penetration Radar." Geotechnical and Geological Engineering 37, no. 5 (2019): 4391–403. http://dx.doi.org/10.1007/s10706-019-00916-y.

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33

Vivekanandan, J., W. C. Lee, E. Loew, et al. "The next generation airborne polarimetric Doppler weather radar." Geoscientific Instrumentation, Methods and Data Systems Discussions 4, no. 1 (2014): 1–42. http://dx.doi.org/10.5194/gid-4-1-2014.

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Abstract. Results from airborne field deployments emphasized the need to obtain concurrently high temporal and spatial resolution measurements of 3-D winds and microphysics. A phased array radar on an airborne platform using dual-polarization antenna has the potential for retrieving high resolution, collocated 3-D winds and microphysical measurements. Recently, ground-based phased array radar (PAR) demonstrated the high time resolution estimation of accurate Doppler velocity and reflectivity of precipitation and clouds when compared to mechanically scanning radar. PAR uses the electronic scann

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Mostapha, Aye Mint Mohamed, Gamil Alsharahi, Ahmed Faize, and Abdellah Driouach. "Effect of the Variation in Humidity of the Medium on the GPR Radar Response." Proceedings 63, no. 1 (2020): 37. http://dx.doi.org/10.3390/proceedings2020063037.

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This work presents research on the influence of the variation in humidity of the medium on the Ground-penetrating radar GPR response. During this research, we used a GPR SIR 3000 system coupled with a 400 MHz frequency antenna, and GprMax and Reflexw software, which are based on the numerical method known as finite difference in time domain (FDTD). The results obtained (experimental and by simulation) have shown that the reflection force and the penetration depth of GPR waves are strongly related to the physical properties of the objects and the medium inspected. The increase in the conductivi

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Raymond, C. F., Ginny A. Catania, Nadine Nereson, and C. J. Van Der Veen. "Bed radar reflectivity across the north margin of Whillans Ice Stream, West Antarctica, and implications for margin processes." Journal of Glaciology 52, no. 176 (2006): 3–10. http://dx.doi.org/10.3189/172756506781828890.

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AbstractSurface-based ice-penetrating radar profiles were made across the active north margin (the Snake) of the upper part of Whillans Ice Stream (formerly Ice Stream B, branch B2), West Antarctica, at three locations. Low frequency (about 2 MHz) and the ground deployment of the radar allowed penetration through the near-surface zone of fracturing to detect internal layering and bed reflection characteristics on continuous profiles spanning from the slow-moving ice of Engelhardt Ridge well into the chaotic zone of the shear margin. Internal layers were tracked beneath the chaotic zone, where

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Arcone, Steven A., Daniel E. Lawson, Allan J. Delaney, Jeffrey C. Strasser, and Jodie D. Strasser. "Ground‐penetratinng radar reflection profiling of groundwater and bedrock in an area of discontinuous permafrost." GEOPHYSICS 63, no. 5 (1998): 1573–84. http://dx.doi.org/10.1190/1.1444454.

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We have used ground‐penetrating radar to profile the depth of permafrost, to groundwater beneath permafrost, and to bedrock within permafrost in alluvial sediments of interior Alaska. We used well log data to aid the interpretations and to calculate dielectric permittivities for frozen and unfrozen materials. Interfaces between unfrozen and frozen sediments above permafrost were best resolved with wavelet bandwidths centered at and above 100 MHz. The resolution also required consideration of antenna configuration, season, and surface conditions. Depths to subpermafrost groundwater were profile

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37

Sudyka, Jacek, Lech Krysiński, Adam Zofka, Marek Pszczoła, and Piotr Jaskuła. "High frequency impulse ground penetrating radar application in assessment of interlayer connections." MATEC Web of Conferences 163 (2018): 02005. http://dx.doi.org/10.1051/matecconf/201816302005.

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Ground Penetrating Radar (GPR) technique is commonly used in the nondestructive evaluation of pavement structures. In particular, this method is used to estimate thicknesses of pavement layers as well as it can be utilized in advanced studies of pavement structures. The device presented in this paper comprise the high frequency impulse antennas that allow for investigating the interlayer zones in terms of their electromagnetic properties (e.g. dielectric constant). In some cases these electromagnetic responses can be suitable in the assessment of layer bonding in the pavement structure. This p

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Sun, Robert, and Junhor Liang. "An active fault in southern Taiwan detected using shallow seismics and ground penetration radar." ASEG Extended Abstracts 2007, no. 1 (2007): 1–3. http://dx.doi.org/10.1071/aseg2007ab146.

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39

Ata, Mohamed, Mona Abouhamad, Mohammed Hassanien Serror, and Mohamed Marzouk. "Data Acquisition and Structural Analysis for Bridge Deck Condition Assessment Using Ground Penetration Radar." Journal of Performance of Constructed Facilities 35, no. 5 (2021): 04021064. http://dx.doi.org/10.1061/(asce)cf.1943-5509.0001645.

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40

Fayou, A., and Hong Qing Zhou. "Comparative Study on the Application of High-Density Electrical Method and Ground Penetration Radar in Fault Surveying." Applied Mechanics and Materials 501-504 (January 2014): 2187–91. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.2187.

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In this study, the basic principle of high-density electrical method and the basic theory of ground penetration radar (GPR) are described. The fault surveying at Wudang is taken as an example to summarize the image features of apparent resistivity section of fault and those surveyed by GPR. The applications in fault surveying of the two methods are compared.

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Du, Kai, Huaguo Huang, Yuyi Zhu, et al. "Simulation of Ku-Band Profile Radar Waveform by Extending Radiosity Applicable to Porous Individual Objects (RAPID2) Model." Remote Sensing 12, no. 4 (2020): 684. http://dx.doi.org/10.3390/rs12040684.

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Similar to light detection and ranging (lidar), profile radar can detect forest vertical structure directly. Recently, the first Ku-band profile radar system designed for forest applications, called Tomoradar, has been developed and evaluated in boreal forest. However, the physical relationships between the waveform and forest structure parameters such as height, leaf area index (LAI), and aboveground biomass are still unclear, which limits later forestry applications. Therefore, it is necessary to develop a theoretical model to simulate the relationship and interpret the mechanism behind. In

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Osepian, A., S. Kirkwood, P. Dalin, and V. Tereschenko. "D-region electron density and effective recombination coefficients during twilight – experimental data and modelling during solar proton events." Annales Geophysicae 27, no. 10 (2009): 3713–24. http://dx.doi.org/10.5194/angeo-27-3713-2009.

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Abstract. Accurate measurements of electron density in the lower D-region (below 70 km altitude) are rarely made. This applies both with regard to measurements by ground-based facilities and by sounding rockets, and during both quiet conditions and conditions of energetic electron precipitation. Deep penetration into the atmosphere of high-energy solar proton fluxes (during solar proton events, SPE) produces extra ionisation in the whole D-region, including the lower altitudes, which gives favourable conditions for accurate measurements using ground-based facilities. In this study we show that

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Petersen, G., I. Lebed, and N. Fohrer. "SRTM DEM levels over papyrus swamp vegetation – a correction approach." Advances in Geosciences 21 (August 12, 2009): 81–84. http://dx.doi.org/10.5194/adgeo-21-81-2009.

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Abstract. The SRTM DEM, a digital elevation model based on the Shuttle Radar Topography Mission of February 2000 is a source of elevation data with nearly worldwide coverage. It has proven its usefulness in various regions but problems persist for densely vegetated areas where, caused by the organic matter and water content of the vegetation, the radar signal is reflected at some level between the vegetation canopy and the ground level. This level varies with different types and densities of vegetation cover and has so far not been assessed for papyrus areas. The paper describes the approach a

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Vivekanandan, J., W. C. Lee, E. Loew, et al. "The next generation airborne polarimetric Doppler weather radar." Geoscientific Instrumentation, Methods and Data Systems 3, no. 2 (2014): 111–26. http://dx.doi.org/10.5194/gi-3-111-2014.

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Abstract. Results from airborne field deployments emphasized the need to obtain concurrently high temporal and spatial resolution measurements of 3-D winds and microphysics. A phased array radar on an airborne platform using dual-polarization antenna has the potential for retrieving high-resolution, collocated 3-D winds and microphysical measurements. Recently, ground-based phased array radar (PAR) has demonstrated the high time-resolution estimation of accurate Doppler velocity and reflectivity of precipitation and clouds when compared to mechanically scanning radar. PAR uses the electronic s

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Garcia-Fernandez, Maria, Ann Morgenthaler, Yuri Alvarez-Lopez, Fernando Las Heras, and Carey Rappaport. "Bistatic Landmine and IED Detection Combining Vehicle and Drone Mounted GPR Sensors." Remote Sensing 11, no. 19 (2019): 2299. http://dx.doi.org/10.3390/rs11192299.

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This work proposes a novel Ground Penetrating Radar (GPR) system to detect landmines and Improvised Explosive Devices (IEDs). The system, which was numerically evaluated, is composed of a transmitter placed on a vehicle and looking forward and a receiver mounted on a drone and looking downwards. This combination offers both a good penetration and a high resolution, enabling the detection of non-metallic targets and mitigating the clutter at the air–soil interface. First, a fast ray tracing simulator was developed to find proper configurations of the system. Then, these configurations were vali

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Dong, Phuoc Tan, Phu Huu Bui, and Quang Minh Pham. "A Novel wideband VHF antenna for impulse GPR applications." Science and Technology Development Journal 17, no. 1 (2014): 50–61. http://dx.doi.org/10.32508/stdj.v17i1.1294.

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A novel wideband VHF antenna for the impulse ground penetrating radar (GPR) system at 200 MHz central frequency is presented in this article. The antenna improves the impulse GPR system for increasing ability penetration. By using the Lemniscate curve, this novel structure of the proposed antenna achieve better radiation than other bow-tie antennas. In addition, this article also proposes the UWB balanced-to-balanced (balun) transformation line is designed to feed the antenna. The balun is an important element for improving the bandwidth of the antenna. The fabrication of the antenna is only s

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Ulfa, Yuniarti, Teoh Ying Jia, Ahmad Munim Che Yaziz, Dasapta E. Irawan, and Deny J. Puradimaja. "Between Natural and Anthropogenic Coastal Landforms: Insights from Ground Penetrating Radar and Sediment Analysis." Applied Sciences 11, no. 8 (2021): 3449. http://dx.doi.org/10.3390/app11083449.

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Both natural and anthropogenic coastal landforms characterize Penang Island. As years have passed it is a challenge to differentiate the genuineness of landmasses created by natural geological formations or by coastal reclamation projects. An account is given of the environmental impact of solid wastes used for reclaiming land in coastal areas of Penang and of the impact of a major sewage outfall in the western channel. Leaching of heavy metals was shown to be one of the main sources of contamination from solid wastes. This paper presents eight lines of ground penetrating radar (GPR) surveys a

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CHENG, CHIA-CHI. "USING SHORT-PULSE GROUND PENETRATION RADAR TO INVESTIGATE THE CONCRETE DETERIORATION AFTER HIGH-TEMPERATURE EXPOSURE." Modern Physics Letters B 22, no. 11 (2008): 995–1000. http://dx.doi.org/10.1142/s0217984908015735.

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The aim of this study is to develop a technique using short wave GPR to investigate damage of concrete after exposing to high-temperature. Specimens with various water to cement ratios were heated in electric oven for two hours. The specimens were evaluated by short-pulse GPR. In the GPR test, the signals corresponding to the reflections from the concrete surface transmitted by an antenna 300 mm above were used for analysis. The area enveloped by the response reflected from the concrete surface in time domain was calculated. The attenuation index (AI), with dB as the unit, was obtained from th

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Al-Ruzouq, Rami I., and Abdelrahman A. Abueladas. "Geomatics techniques and ground penetration radar for archaeological documentation of Al-Salt castle in Jordan." Applied Geomatics 5, no. 4 (2013): 255–69. http://dx.doi.org/10.1007/s12518-013-0116-6.

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Ma, Bowen, Weiqiang Zhu, and Qinghua Huang. "Imaging shallow fault structures by three-dimensional reverse time migration of ground penetration radar data." Journal of Applied Geophysics 190 (July 2021): 104342. http://dx.doi.org/10.1016/j.jappgeo.2021.104342.

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