Academic literature on the topic 'Georadars'

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Journal articles on the topic "Georadars"

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Batrakov, D. O., M. M. Kovalov, A. G. Batrakova, and S. N. Urdzik. "Non-destructive monitoring of highways using georadar (review article, part II)." Visnyk of V.N. Karazin Kharkiv National University, series “Radio Physics and Electronics”, no. 36 (June 28, 2022): 7–20. https://doi.org/10.26565/2311-0872-2022-36-01.

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Relevance. The relevance of the research presented in the article is primarily due to the focus on the implementation of the state strategy to ensure the reliability and prolong the residual life of transport and engineering structures. Implementation is associated with methods and means of obtaining information and processing it in real time, as well as methods of assessing the condition of engineering structures, which are characterized by significant heterogeneity of geometric and physical-mechanical parameters. It is clear that this complicates the use of diagnostic results. However, despi
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Grecheneva, A. V., N. V. Dorofeev, O. R. Kuzichkin, D. I. Surzhik, and R. V. Romanov. "The method of forming probing signals of georadars on the basis of direct digital synthesizers for geodynamic monitoring." MATEC Web of Conferences 272 (2019): 01044. http://dx.doi.org/10.1051/matecconf/201927201044.

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The features of the formation of probing signals based on direct digital synthesizers for geodynamic monitoring of medias using georadar probing are considered in the article. The basic requirements for the formers of probing signals and the shortcomings of known technical solutions are shown. To eliminate them, as a former of probing signals of georadars was suggested to use direct digital synthesizers with improved spectral characteristics, achieved by introducing circuit of an automatic compensation of phase distortion with a control device in the form of a phase-locked loop. With this cons
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Batrakov, D. O., М. М. Kovalov, А. О. Maslennikov, А. G. Batrakova, and S. N. Urdzik. "Non-destructive control of roads by georadars (review article, part I)." 35, no. 35 (December 29, 2021): 27–38. http://dx.doi.org/10.26565/2311-0872-2021-35-03.

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Relevance. The relevance of the studies outlined in the article is due to their focus on the implementation of the state strategy for ensuring the reliability and extending the resource of transport and engineering structures, the implementation of which is associated with the methods and means of obtaining information and processing it in real time; methods for assessing the state of engineering structures, a feature of which is a significant heterogeneity of geometric and physical-mechanical parameters, which complicates the use of diagnostic results. With the obvious advantages of wave soun
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Kachanov, A. N., and A. N. Petrov. "Georadars in timber transport roads inspection and testing." Resources and Technology, no. 8 (2010): 74–76. http://dx.doi.org/10.15393/j2.art.2010.1770.

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Prokofiev, Ivan, Maxim Markov, Anton Purtov, Lyubov Shebalkova, and Valery Yushhenko. "INFLUENCE OF SOIL PROPERTIES ON THE RANGE OF SOUNDINGIN GEOLOCATION." Interexpo GEO-Siberia 2, no. 4 (2019): 237–45. http://dx.doi.org/10.33764/2618-981x-2019-2-4-237-245.

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Georadiolocation (subsurface radar sounding) is a geophysical method based on the emission of pulses from electromagnetic waves and the recording of signals reflected from various objects of the sounded medium. The differential properties of the soil are considered. A conclusion is drawn on the use of georadars of various types in geospatial intelligence.
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Dorofeev, N. V., A. V. Grecheneva, O. R. Kuzichkin, D. I. Surzhik, and R. V. Romanov. "The method and devices of autocompensation of phase distortions of direct digital synthesizers of signal formers of georadars." MATEC Web of Conferences 272 (2019): 01046. http://dx.doi.org/10.1051/matecconf/201927201046.

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The method for isolating the clock frequency of direct digital synthesizers, as well as algorithms and devices for isolating and automatically compensating phase distortions, that significantly improve the spectral characteristics of the formers of the probing signals of georadars used for geodynamic monitoring are considered in the article. The method is substantiated, explanatory oscillograms, spectrograms, and the results of the experimental researches, confirming the authenticity, are presented.
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Sambulov, N. I., N. B. Khakhulin, and Yu S. Netrebina. "Using Georadars for Evaluating the Thickness of a Concrete Layer." IOP Conference Series: Materials Science and Engineering 1079, no. 3 (2021): 032018. http://dx.doi.org/10.1088/1757-899x/1079/3/032018.

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Kirill Olegovich, SOKOLOV. "Development of a model of a ground-penetrating radar section of a frozen rock massif with a crack." NEWS of the Ural State Mining University, no. 2 (June 15, 2021): 134–39. http://dx.doi.org/10.21440/2307-2091-2021-2-134-139.

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Revelance of the work. The presence of cracks significantly affects the physical and mechanical properties of rocks, which should be taken into account when planning mining operations and building mining facilities. In the conditions of the spread of permafrost rocks, characteristic of northeastern Russia, the study of fracturing is possible by the GPR method, which is used to assess the structure of rock massifs in placer deposits. The criteria for detecting cracks based on the features of wave georadar fields are currently known, and the main problem that prevents the full use of the georada
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Sidorov, Igor A., Alexander G. Gudkov, Evgeny P. Novichikhin, Sergey V. Chizhikov, and Igor O. Porokhov. "Radiometric method for soil moisture portraits obtaining to study the hydrology of dams." Radioelectronics. Nanosystems. Information Technologies. 15, no. 2 (2023): 125–32. http://dx.doi.org/10.17725/rensit.2023.15.125.

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The methods for the artificial hydraulic structures condition monitoring using trace microwave radiometers are considered, in order to timely detect places of underground leaks to ensure trouble-free operation. Several practical examples of the use of microwave radiometers on various ground-based mobile carriers are described. The characteristics of microwave radiometers used in practice for hydrological monitoring of earthen dams are given. The possibility of detecting potentially dangerous sections of dams, places of erosion of the dam cover, possible places of underground leaks is shown. Th
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Kuzichkin, Oleg R., Dmitriy I. Surzhik, Gleb S. Vasiliev, Igor A. Kurilov, and Nikolai V. Dorofeev. "Analysis of Noise Characteristics of Multichannel Systems of the Formation of Signals of Georadars with Synthesized Aperture." Active and Passive Electronic Components 2018 (December 4, 2018): 1–7. http://dx.doi.org/10.1155/2018/9429863.

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The noise characteristics of multichannel systems of forming signals based on hybrid frequency synthesizers with automatic compensation of phase distortions of direct digital synthesizers, which are used in the composition of georadars with synthesized aperture, are investigated. It is established that the phase noise of the output signals of the formers at the 1 kHz detuning from the carrier oscillation at the output frequencies of the devices in the range from 500 to 3500 MHz is characterized by a level of minus 100 - minus 130 dB. In this case, the circuit of the signal former based on a hy
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Dissertations / Theses on the topic "Georadars"

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Абрамович, А. О. "Радіолокаційно-вихрострумовий метод обробки сигналів георадарів". Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/44118.

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Відома значна кількість конструкцій металодетекторів (найпоширенішого різновиду георадарів), які мають різне призначення. Всі вони поділяються на три основні типи за принципом дії (передача- прийом, генератор биття частот, імпульсна індукція) і мають різну схемотехніку, що пояснює наявність на ринку багатьох моделей від різних фірм-виробників. Саме принципом дії визначається призначення металодетекторів: для пошуку чорних металів (наприклад, розмінування) та кольорових (археологічні, геологічні розвідки та ін.). При цьому, селекція кольорових металів (мідь, золото, срібло, тощо) ними не здій
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Parnadi, Wahyudi Widyatmoko. "Kennwert-Schätzung aus Georadar-Transmissionsdaten." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola&quot, 2009. http://nbn-resolving.de/urn:nbn:de:swb:105-5191779.

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Neben der Ausbreitungsgeschwindigkeit ist die Absorption elektromagnetischer Wellen der wichtigste Parameter für die Bearbeitung und Interpretation von Georadar-Daten. Für die realitätsnahe Beschreibung der Ausbreitung elektromagnetischer Wellen in Gesteinen eignet sich das Modell mit konstantem Q und einem Dispersionsansatz der Phasengeschwindigkeit nach Futterman (1982). Anhand von Modellrechnungen wird die Wirkung dieser Parameter auf Wavelets untersucht. Die Ermittlung des absorptionscharakterisierenden Gütefaktors Q aus GPR-Transmissionsdaten erfolgt auf der Basis einer Erweiterung der Q-
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Parnadi, Wahyudi W. "Kennwert-Schätzung aus Georadar-Transmissionsdaten /." [S.l. : s.n.], 2001. https://fridolin.tu-freiberg.de/archiv/html/GeowissenschaftenParnadiWahyudi%5FWidyatmoko519177.html.

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Gross, Ralf. "3-D georadar surveying of active faults /." [S.l.] : [s.n.], 2002. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=14971.

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Girard, Jean-Francois. "Imagerie georadar et modelisation des diffractions multiples." Phd thesis, Université Louis Pasteur - Strasbourg I, 2002. http://tel.archives-ouvertes.fr/tel-00135945.

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Le géoradar est une technique couramment utilisée pour prospecter le proche sous-sol. Des ondes électromagnétiques à hautes fréquences (>10 MHz) sont émises dans le sol et les échos enregistrés traduisent les contrastes de permittivité diélectrique entre les différents milieux. Cela permet d'imager les changements de lithologie, des états de fracturation différents, des variations de teneur en eau... Dans ces milieux diélectriques, l'onde perturbe les distributions de charges électriques liées et induit une polarisation qui à son tour influe sur l'onde et déforme le signal. En accord avec les
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Jesus, Thales Eduardo Silva de. "Imageamento digital de paleocavernas colapsadas com georadar." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18821.

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Made available in DSpace on 2015-03-13T17:08:32Z (GMT). No. of bitstreams: 1 ThalesESJ_DISSERT.pdf: 669387 bytes, checksum: 33a20d208304804215535ed96770330f (MD5) Previous issue date: 2012-04-27<br>In this study, the methodological procedures involved in digital imaging of collapsed paleocaves in tufa using GPR are presented. These carbonate deposits occur in the Quixer? region, Cear? State (NE Brazil), on the western border of the Potiguar Basin. Collapsed paleocaves are exposed along a state road, which were selected to this study. We chose a portion of the called Quixer? outcrop for makin
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Messinger, Jens. "Optimierte Auswertestrategien zur Kennwertermittlung mittels Georadar-Tomographie." Berlin mbv, Mensch-und-Buch-Verl, 2008. http://d-nb.info/998082473/04.

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Costa, André João de Vilhena. "Utilização do georadar na caracterização de pavimentos rodoviários." Master's thesis, Departamento de Engenharia Civil, 2009. http://hdl.handle.net/10316/15693.

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Franco, Dulce Alexandra Lourenço. "Avaliação das potencialidades do georadar em engenharia civil." Master's thesis, Universidade de Aveiro, 2010. http://hdl.handle.net/10773/3648.

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Mestrado em Engenharia Civil<br>Esta dissertação incide sobre a aplicação de uma técnica geofísica não destrutiva, designadamente o Ground Penetrating Radar (GPR), também denominado por georadar. Na componente prática deste trabalho são apresentados exemplos de aplicações utilizados para estudar as potencialidades do equipamento de georadar existente no Instituto Politécnico de Tomar. O GPR foi utilizado em dois solos, em pavimentos betuminosos, em duas paredes, em duas lajes de betão armado e numa ponte de alvenaria de pedra. Os resultados obtidos na aplicação do GPR em solos mostram que este
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Bentley, Andrew Phillip Keller. "Characterizing Subsurface Complexity of Aeolian Morphotypes with Georadar." Master's thesis, Temple University Libraries, 2013. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/226136.

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Geology<br>M.S.<br>Aeolian landforms are classified based on their plan morphology, which is a function of sediment transport volume, wind direction, and vegetation. In the case of compound landforms or two-dimensional exposures (outcrops), there is insufficient information for discriminating between 3D morphotypes (e.g., barchans vs. parabolic dunes). To characterize the dip-section architecture of near end-member morphologies (interacting barchans and sparsely vegetated parabolics), a series of axial transects were selected from >25 km of high-resolution (500 MHz) ground-penetrating radar (G
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Books on the topic "Georadars"

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Conyers, Lawrence. Georadar Aplicado en Geotecnia y Arqueología. Primedia eLaunch LLC, 2021.

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Gross, Ralf. 3-D georadar surveying of active faults. 2002.

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Indagini georadar sul basamento del David di Michelangelo. La scuola di Pitagora, 2010.

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Zürich, Eidgenössische Technische Hochschule, ed. Automation in 3D georadar investigations: New acquisition and processing techniques. 1999.

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Electromagnetic Methods in Geophysics: Applications in GeoRadar, FDEM, TDEM, and AEM. Wiley & Sons, Limited, John, 2022.

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Leucci, Giovanni, and Fabio Giannino. Electromagnetic Methods in Geophysics: Applications in GeoRadar, FDEM, TDEM, and AEM. Wiley & Sons, Incorporated, John, 2021.

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Leucci, Giovanni, and Fabio Giannino. Electromagnetic Methods in Geophysics: Applications in GeoRadar, FDEM, TDEM, and AEM. Wiley & Sons, Incorporated, John, 2021.

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Leucci, Giovanni, and Fabio Giannino. Electromagnetic Methods in Geophysics: Applications in GeoRadar, FDEM, TDEM, and AEM. Wiley & Sons, Incorporated, John, 2021.

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Serra, Mario, and Stefania D'Agostino, eds. Archeologia Preventiva. Manuale per gli operatori. Agenzia Magna Graecia, 2010.

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Zürich, Eidgenössische Technische Hochschule, ed. Three-dimensional georadar imaging: Quaternary sediments in the Rhine and Rhone River valleys, Switzerland. 1998.

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Book chapters on the topic "Georadars"

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Vilhjalmsson, R., and R. Feld. "Einsatz des Georadars im Ingenieurbau." In Laser/Optoelektronik in der Technik / Laser/Optoelectronics in Engineering. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-48372-1_197.

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Faize, Ahmed, and Gamil Alsharahi. "Preliminary Study of Roots by Georadar System." In Embedded Systems and Artificial Intelligence. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0947-6_17.

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Frid, Alan, and Vladimir Frid. "Features of a Large-Scale Survey of Highways with Georadar." In Lecture Notes in Civil Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77234-5_70.

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Buynevich, Ilya V., Albertas Bitinas, and Donatas Pupienis. "Aeolian Sand Invasion: Georadar Signatures from the Curonian Spit Dunes, Lithuania." In Sand and Gravel Spits. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-13716-2_5.

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"Georadar." In Encyclopedic Dictionary of Archaeology. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-58292-0_70111.

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"Georadar n." In Wörterbuch GeoTechnik/Dictionary Geotechnical Engineering. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-33335-4_71324.

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Dias, Gustavo Nogueira, Lucia Maria Costa e. Silva, and Vanessa Mayara Souza Pamplona. "EXPLORAÇÃO DA EROSÃO FLUVIAL POR MEIO DO GEORADAR." In Ciência ambiental: avanços tecnológicos, perspectivas sociais e os problemas causados pela intervenção humana. Atena Editora, 2023. http://dx.doi.org/10.22533/at.ed.4312302056.

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Kubišta, Richard. "Georadar research of parterre in historic park in Palarikovo." In Plants in Urban Areas and Landscape. Slovak University of Agriculture in Nitra, 2014. http://dx.doi.org/10.15414/2014.9788055212623.159-163.

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Tončinić, Domagoj, and Branko Mušič. "Geofizička istraživanja primjenom georadara na području rimskog legijskog logora Tilurija." In TILURIUM V. Arheološka istraživanja 2010. - 2018. godine. Filozofski fakultet Sveučilišta u Zagrebu - FF Press, 2021. http://dx.doi.org/10.17234/9789531757867.8.

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Mušič, Branko, and Domagoj Tončinić. "Geofizička istraživanja primjenom georadara na području rimskog legijskog logora Tilurija." In TILURIUM V. Arheološka istraživanja 2010. - 2018. godine. Filozofski fakultet Sveučilišta u Zagrebu - FF Press, 2021. http://dx.doi.org/10.17234/9789533790336.8.

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Conference papers on the topic "Georadars"

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Melchiori, Ana Paula Piovesan, José Roberto Soares Scolforo, Ricardo Terra, et al. "GeoRadar: Inovação na Investigação pelo Ministério Público Federal com Dados Geolocalizados." In Anais Estendidos do Simpósio Brasileiro de Sistemas de Informação. Sociedade Brasileira de Computação (SBC), 2023. http://dx.doi.org/10.5753/sbsi_estendido.2023.229396.

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Este artigo apresenta a inovação no âmbito do Ministério Público Federal com o Georadar, um sistema de informação com dados geolocalizados utilizado pela Secretaria de Perícia, Pesquisa e Análise para investigação com cruzamento de dados e geração de relatórios para procedimentos judiciais e extrajudiciais. O Georadar foi desenvolvido em parceria com a Universidade Federal de Lavras, com a disponibilização de sistema com mapas interativos com cruzamento de dados de diversas bases de dados, e já tem impacto em investigações de grande relevância, como identificação de áreas com invasão de terra
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A. van Overmeeren, R. "Georadar for hydrogeology." In 55th EAEG Meeting. European Association of Geoscientists & Engineers, 1993. http://dx.doi.org/10.3997/2214-4609.201411534.

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Saracin, Aurel. "GEORADAR TECHNIQUE AND MICROTUNNELLING." In 16th International Multidisciplinary Scientific GeoConference SGEM2016. Stef92 Technology, 2016. http://dx.doi.org/10.5593/sgem2016/b22/s09.043.

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Fokkema, Jacob, Emile Fokkema, Sicco Beekman, and Evert Slob. "Analysis Of Georadar Reflection Responses." In 7th International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 2001. http://dx.doi.org/10.3997/2214-4609-pdb.217.017.

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Lehmann, Frank, David Boerner, Klaus Holliger, and Alan G. Green. "Vectorial nature of georadar data." In 8th International Conference on Ground Penetrating Radar, edited by David A. Noon, Glen F. Stickley, and Dennis Longstaff. SPIE, 2000. http://dx.doi.org/10.1117/12.383523.

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Lehmann, Frank, and Alan G. Green. "Topographic migration of georadar data." In 8th International Conference on Ground Penetrating Radar, edited by David A. Noon, Glen F. Stickley, and Dennis Longstaff. SPIE, 2000. http://dx.doi.org/10.1117/12.383556.

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Lehmann, Frank, Michiel van der Veen, Peter Wild, Heinrich Horstmeyer, and Alan Green. "Automated three‐dimensional georadar acquisition." In SEG Technical Program Expanded Abstracts 1997. Society of Exploration Geophysicists, 1997. http://dx.doi.org/10.1190/1.1886119.

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Ciszkowski, V., P. Curcaneanu, E. Oltean, L. Bogateanu, G. Ticu, and M. Ciuperceanu. "Georadar Method To Monitor Railway Infrastructure." In 4th Congress of the Balkan Geophysical Society. European Association of Geoscientists & Engineers, 2005. http://dx.doi.org/10.3997/2214-4609-pdb.26.p2-07.

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Pereira Lopes, Elizeu, Luiz Muniz Barreto, and Jorge Muniz Barreto. "Neural Georadar Probing of Stratified Media." In 5th International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 1997. http://dx.doi.org/10.3997/2214-4609-pdb.299.162.

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Tešić, Ksenija, Ana Baričević, and Marijana Serdar. "Primjena georadara u ocjeni stanja betonskih konstrukcija." In 6th Symposium on Doctoral Studies in Civil Engineering. University of Zagreb Faculty of Civil Engineering, 2019. http://dx.doi.org/10.5592/co/phdsym.2020.16.

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