Temat: Ground Penetrating Radar - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Search for Chelyabinsk Meteorite Fragments in Chebarkul Lake Bottom (GPR and Magnetic Data)
Autorzy:: Buzin, V.
Edemsky, D.
Gudoshnikov, S.
Kopeikin, V.
Morozov, P.
Popov, A.
Prokopovich, I.
Skomarovsky, V.
Melnik, N.
Berkut, A.
Merkulov, S.
Vorovsky, P.
Bogolyubov, L.
Powiązania:: https://bibliotekanauki.pl/articles/307795.pdf
Data publikacji:: 2017
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: Chelyabinsk meteorite
Ground Penetrating Radar
Opis:: The paper summarizes experimental efforts of the Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN) undertaken in search of the biggest part of Chelyabinsk meteorite in the bottom of lake Chebarkul, South Ural, Russia, and to estimate the ecological effects of its subsequent excavation.
Źródło:: Journal of Telecommunications and Information Technology; 2017, 3; 69-78
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: A Review on Impulse RADAR
Autorzy:: Kumar, Saket
Kumar, Amit
Singh, Vikrant
Singh, Abhishek Kumar
Powiązania:: https://bibliotekanauki.pl/articles/2055207.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: radar
impulse radar
ground penetrating radar
GPR
Opis:: RADAR plays a vital role in military applications since its origin in the 2nd world war. Recently it has been used in surface inception, health monitoring, infrastructure health monitoring, etc. In these applications, Ultra-wideband RADAR systems are more popular than traditional RADAR systems. Impulse RADAR is a special kind of ultra-wideband RADAR, which is mostly used for surface penetration, through-wall imaging, antimissile detection, anti-stealth technology, etc. because of its high resolution and low center frequency. Out of all these applications, impulse RADAR has been used intensively as a ground-penetrating RADAR for the detection of land mines, underlying pipelines, buried objects, etc. This report has attempted to provide the steps for designing the impulse ground penetrating RADAR (GPR) as well as provides the value of crucial parameters required in the design process of commercial GPR systems.
Źródło:: International Journal of Electronics and Telecommunications; 2021, 67, 4; 579--587
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Improving the GPR Detectability Using a Novel Loop Bowtie Antenna
Autorzy:: Ajith, K. K.
Bhattacharya, A.
Powiązania:: https://bibliotekanauki.pl/articles/308503.pdf
Data publikacji:: 2017
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: antenna
Ground Penetrating Radar
imaging
UHF
UWB
Opis:: The Ground Penetrating Radar (GPR) technique finds immense applications in civil engineering today, as the most suitable approach for non-destructive testing of pavements, highways, concrete structures, and more. The major challenge in carrying out a GPR evaluation is that the properties of the probed medium are usually unknown. The permittivity and conductivity of the medium may vary from those of air to water. The electromagnetic waves also have a frequency dependent attenuation. The ability of GPR to detect signals reflected and scattered by the targets largely depends upon the antenna performance. This paper studies a novel 11:1 wideband loop bowtie antenna with very good radiation properties in the entire operating bandwidth. Synthetic and experimental results are presented for the return loss and gain of the antenna. Furthermore, experimental results are presented for the radiation patterns in the E- and H-plane. We also used the antenna to measure B-scans over two different pipes, a bamboo, and a reinforced concrete structure. All results obtained with the proposed antenna have been compared with results obtained by using a RC loaded antenna. It has been found that the loop bowtie antenna has excellent detection capability and produces less clutter. The loop loading technique can be applied to existing antennas for improved GPR imaging. This will improve the detectability of GPR by improving the target return signal.
Źródło:: Journal of Telecommunications and Information Technology; 2017, 3; 9-16
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Advanced Inversion Techniques for Ground Penetrating Radar
Autorzy:: Fedeli, A.
Pastorino, M.
Randazzo, A.
Powiązania:: https://bibliotekanauki.pl/articles/308896.pdf
Data publikacji:: 2017
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: electromagnetic scattering
Ground Penetrating Radar
inverse problems
Opis:: Ground Penetrating Radar (GPR) systems arenowadays standard inspection tools in several application areas, such as subsurface prospecting, civil engineering and cultural heritage monitoring. Usually, the raw output of GPR isprovided as a B-scan, which has to be further processed inorder to extract the needed information about the inspectedscene. In this framework, inversescattering-based approachesare gaining an ever-increasing interest, thanks to their capabilities of directly providing images of the physical and dielectricproperties of the investigated areas. In this paper, some advances in the development of such inversion techniques in theGPR field are revised and discussed.
Źródło:: Journal of Telecommunications and Information Technology; 2017, 3; 37-42
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: A ground-penetrating radar study of the Vaidasoo bog (Estonia) : no crater structure exists
Autorzy:: Mustasaar, M.
Plado, J.
Jõeleht, A.
Powiązania:: https://bibliotekanauki.pl/articles/2059724.pdf
Data publikacji:: 2013
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Vaidasoo structure
ground penetrating radar
Estonia
peat
Opis:: Ground-penetrating radar (GPR) was used to analyse the circular Vaidasoo bog in northern Estonia. This was done to better understand its structure and origin, and to test the suggestion that Vaidasoo represents a meteorite impact structure. The combination of GPR with LIDAR data suggests that Vaidasoo bog is developed in a NW–SE oriented glacial tunnel valley where post-glacial hydrology is affected by glaciofluvial deposits. As no clear impact-modified bedrock features were identified and the circular bog does not mirror the topography of the bedrock, we conclude that the Vaidasoo structure does not represent a meteorite impact structure.
Źródło:: Geological Quarterly; 2013, 57, 2; 357--360
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Analytical Investigation on a New Approach for Achieving Deep Penetration in a Lossy Medium: The Lossy Prism
Autorzy:: Frezza, F.
Simeoni, P.
Tedeschi, N.
Powiązania:: https://bibliotekanauki.pl/articles/308620.pdf
Data publikacji:: 2017
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: deep-penetration
Ground Penetrating Radar
leakywave antennas
Opis:: Recent studies highlighted deep-penetration prop-erties of inhomogeneous waves at the interface between a loss-less and a lossy medium. Such waves can be generated bymeans of radiating structures known as Leaky-Wave Anten-nas (LWAs). Here, a different approach is proposed basedon the use of a lossy prism capable to generate an inhomo-geneous wave when illuminated by a homogeneous wave. Thelossy prism is conceived and designed thinking of Ground-Penetrating Radar (GPR). The results achieved by the lossyprism will be compared with those obtained by means of a pre-viously designed LWA that was created with the identical ob-jective. The approach of this paper is purely theoretical, andit aims at providing basic ideas and preliminary results usefulfor an innovative LWA design.
Źródło:: Journal of Telecommunications and Information Technology; 2017, 3; 17-24
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Multiple-ring Circular Arrayfor Ground-Penetrating Radar Applications : Basic Ideas and Preliminary Results
Autorzy:: Vescovo, R.
Pajewski, L.
Powiązania:: https://bibliotekanauki.pl/articles/308705.pdf
Data publikacji:: 2017
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: antenna array
ultra-wideband
Ground Penetrating Radar
Opis:: In this paper, the possibility of using a multiple-ring circular array as an antenna array for Ground-Pene-trating Radar systems is investigated. The theory behind theproposed idea is presented. The preliminary numerical re-sults that are obtained suggest that the proposed congura-tion is promising. It allows achieving a wide frequency bandand low dynamic range ratio of excitations, thus simplifyingthe feeding network. Further interesting requirements maybe satised by exploiting a combination of deterministic andstochastic synthesis techniques to design the array.
Źródło:: Journal of Telecommunications and Information Technology; 2017, 3; 25-29
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Application of electromagnetic field modelling in GPR investigations of an historic tenement
Autorzy:: Czaja, K.
Powiązania:: https://bibliotekanauki.pl/articles/184168.pdf
Data publikacji:: 2012
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: ground penetrating radar
electromagnetic field modelling
historical buildings
Opis:: The article presents the results of Ground Penetrating Radar (GPR) measurements carried out in a historic tenement in Krakow. The aim of this study was to check if there is a basement under the apartment's floor. In order to verify the results, modelling attempt of electromagnetic field evolution in the medium was undertaken. The numerical simulation of GPR impulse passage in the medium uses the finite-difference time-domain method (FDTD). Synthetic radargrams obtained as a result of the modelling were compared with measurements processed radargrams.
Źródło:: Geology, Geophysics and Environment; 2012, 38, 4; 395-410
2299-8004
2353-0790
Pojawia się w:: Geology, Geophysics and Environment
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Lidar and ground penetrating radar data in determining road surface conditions and geological characteristics of unstable soils
Autorzy:: Plichta, A.
Piasecki, A.
Powiązania:: https://bibliotekanauki.pl/articles/297854.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:: road investment
laser scanning
geophysics
ground penetrating radar
Opis:: Within the road investments the very important element determining repeatedly the success of the whole project is an adequate information about the characteristics of the site, its load capacity, stability and the possible impact of geological characteristics that may interfere with subsequent service life, not only for the road surface itself, but also for the surrounded objects. The surface is incessantly influenced by geological characteristics, determining its durability and functional usefulness. The main aim of this paper is to answer the question how by the usage of modern technics for obtaining data it is possible to find a link confirming the characteristics of land on which the specific road projects are supposed to be carried out, or where these projects have already been accomplished, concerning their requirements with high accuracy of location and also the stability and durability of the ground. This article makes also an attempt to answer not only the question how to identify the construction of road surface, but also how to locate underground cavities, created or influenced by the flow of water, or due to geological structures characterized as an inconsistent ground. The results were supported with geophysical researches using GPR method, and also data collected with laser scanners.
Źródło:: Technical Sciences / University of Warmia and Mazury in Olsztyn; 2017, 20(2); 111-129
1505-4675
2083-4527
Pojawia się w:: Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Unmanned ground vehicle equipped with ground penetrating radar for improvised explosives detection
Autorzy:: Szynkarczyk, Piotr
Wrona, Józef
Pasternak, Mateusz
Rubiec, Arkadiusz
Serafin, Piotr
Powiązania:: https://bibliotekanauki.pl/articles/2141880.pdf
Data publikacji:: 2021
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: improvised explosive devices detection
unmanned ground vehicle
ground penetrating radar
Opis:: The article presents some objectives and results of the European Defense Agency Program on: Improvised Explosive Devices Detection (IEDDET Program). The goal of the article is to describe the work, results and recommendations regarding Unmanned Ground Vehicle (UGV) and Ground Penetrating Radar (GPR) - contributions within the MUSICODE project. Its scope and goals were presented, which are in line with the objectives of the IEDDET Program taking into consideration that the recommendations (for UGV and GPR) are related to the goals, not the results of MUSICODE project. There were described scenarios and the resulting changes in the structure implemented in the UGV - the FLORIAN robot which served as a sensors carrier including Ground Penetrating Radar (GPR). The main focus of the article is to find the answer to the research question: what is an impact of using the GPR to be mounted on the UGV to detect improvised explosive devices (IEDs) on the UGV construction and the GPR results. The structure of this radar was described and examples of tests results were presented. The summary presents recommendations for the construction of an unmanned land platform to carry sensors used in the work carried out in the MUSICODE project and conclusions regarding GPR, resulting from the experiences gained under the IEDDET Program.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2021, 15, 2; 20-31
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Variability of temperature and thickness of permafrost active layer at coastal sites of Svalbard
Autorzy:: Budzik, Tomasz
Dolnicki, Piotr
Grabiec, Mariusz
Puczko, Dariusz
Gawor, Łukasz
Klementowski, Jan
Powiązania:: https://bibliotekanauki.pl/articles/2051381.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Arctic
Spitsbergen
Nordaustlandet
active layer
ground penetrating radar
permafrost
Źródło:: Polish Polar Research; 2013, 4; 353-374
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Badania georadarowe (GPR) w archikatedrze fromborskiej w roku 2013
GPR survey inside Frombork Cathedral in 2013
Autorzy:: Udyrysz, M
Szynkiewicz, A.
Powiązania:: https://bibliotekanauki.pl/articles/293664.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: architektura
metoda georadarowa
krypty
ground penetrating radar
graves
tombs
Opis:: W 2013 r. po posadzkach wewnątrz archikatedry we Fromborku wykonane zostały sprawdzające, nieinwazyjne badania georadarowe (GPR). Badania wykonano antenami 800 MHz do głębokości 3 m. Główną uwagę zwrócono na miejsce określone jako „lektorium” (czytelnia). Potwierdzono występowanie silnych anomalii wykrytych tu w 2005 r. podczas pierwszych badań GPR wykonywanych antenami 250 MHz. W pracy omówiona jest metodyka i etapy badań. Pokazano trzy wybrane przekroje georadarowe (GPR) oraz mapkę wykrytych anomalii w części kościoła nazywanej „lektorium”.
In 2013, a non-destructive GPR investigation was carried out over the floors inside the Cathedral in Frombork. The investigation was performed to a depth of 3 m using an 800 MHz antenna. During the studies, the main focus was to find the place conventionally known as the “lectorium” (reading room). The investigation has confirmed the location of the strong anomalies that were identified during the first GPR study using the 250 MHz antenna in 2005. The paper discusses the methods and stages of the research. Three selected GPR cross-sections are shown as examples together with the map of anomalies in the area called the “lectorium”.
Źródło:: Architectus; 2014, 3(39); 3-10
1429-7507
2084-5227
Pojawia się w:: Architectus
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Results of geophysical scanning of a Roman senatorial villa in the Santa Marina Bay (Croatia, Istria) using the amplitude data comparison method (ADCM)
Autorzy:: Welc, Fabian
Rousse, Corinne
Bencic, Gaetano
Powiązania:: https://bibliotekanauki.pl/articles/2024852.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: archaeology
geophysics
ground-penetrating radar
magnetometry
Roman period
Croatia
Opis:: The article presents application of the new geophysical amplitude data comparison method (ADCM), resulting from integrated geophysical survey using ground-penetrating radar (GPR) and magnetometry. The ADCM was applied to recognize the horizontal and vertical stratigraphy of a Roman senatorial villa located in Santa Marina (western part of Croatian Istria). The measurements were carried out in 2017−2019 at this site, accompanied by a use of GPR and gradientometer. These two methods significantly differ from each other, but on the other hand, they are complementary to some extent. This is due to the fact that the methods register different types of underground materials. The GPR records electromagnetic waves reflected from real buried remains or boundaries between geological or archaeological layers that differ significantly in electrical properties. The magnetic method, in turn, records the anomalies of the magnetic field intensity resulting from the underground concentration of ferromagnetic minerals, hence it is ideal for searching structures filled with organic matter or burning material. However, a separate usage of these methods does not guarantee a full picture of archaeological structures that are preserved underground. Only the application of the ADCM allowed for a comparison of GPR and magnetic amplitude data reading, following which a spatial image (2D and 3D) of the preserved archaeological structures and the geological stratigraphy of the Santa Maria site were obtained.
Źródło:: Studia Quaternaria; 2020, 37; 79-90
1641-5558
2300-0384
Pojawia się w:: Studia Quaternaria
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Określanie głębokości elementów podziemnych metodą georadarową
Determination of depth of underground structures with the radar method
Autorzy:: Sołtys, M.
Powiązania:: https://bibliotekanauki.pl/articles/262443.pdf
Data publikacji:: 2005
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: georadar
głębokość
radargram
ground penetrating radar
depth of penetration
Opis:: W pracy podano zasadnicze elementy kształtujące zakres pomiaru głębokości georadarem z uwzględnieniem uwarunkowań obejmujących czynniki instrumentalne i wybrane parametry penetrowanego ośrodka. Wzajemne zależności pomiędzy czynnikami instrumentalnymi i parametrami pomiaru dotyczyły: częstotliwości anteny, rozmiaru i głębokości lokalizowanego obiektu, częstotliwości próbkowania, doboru okna czasowego, prędkości rozchodzenia się fal elektromagnetycznych w badanym ośrodku. Przedstawiono geometryczne zasady określania głębokości obiektów oraz dokonano oceny dokładności przetworzonych radargramów
The paper discusses essential factors influencing the range of depth determination with GPR, including instrument features and chosen parameters of penetrated medium. Interrelations between instrument factors and measurement parameters pertained to: antenna frequency, size and depth of the object to be located, sampling frequency, time window selection and velocity of electromagnetic waves in the penetrated ground. Geometric principles of depth determination are presented and accuracy of processed radargrams is assessed
Źródło:: Geodezja / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2005, 11, 1/1; 175-182
1234-6608
Pojawia się w:: Geodezja / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Application of ground penetrating radar method combined with sedimentological analyses in studies of glaciogenic sediments in central Poland
Autorzy:: Lejzerowicz, Anna
Wysocka, Anna
Kowalczyk, Sebastian
Powiązania:: https://bibliotekanauki.pl/articles/2025229.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: ground penetrating radar
radar facies
glaciogenic deposits
sedimentological studies
central Poland
Opis:: GPR method is perfectly suited for recognizing of sedimentary facies diversity in shallowly occurring sediments if there is a contrast of electrical properties between and/or within each layer. The article deals with the issue of the correlation between GPR surveys results and sedimentological analyses. As a result of this correlation a conceptual model of depositional systems of studied areas was developed. Studies were performed in two areas located in central Poland, where glacial deposits formed in the Middle Polish (Saalian) Glaciation are present. The study was based on 49 sediment samples and 21 GPR profiles. Analyses of lithofacies as well as granulometric and mineralogical composition of deposits of collected samples were carried out, showing the diversity of glacial deposits in both study sites. During GPR measurements shielded antenna with a frequency of 500 MHz was used which allowed high-resolution mapping of the internal structure of deposits and to identify four characteristic radar facies. Correlation of GPR profiles with point, one-dimensional sedimentological studies allowed the unambiguous interpretation of the GPR image and draw conclusions about the formation environment of individual units. Geophysical and sedimentological data obtained during study provide a new and detailed insight into selected glacial deposits in central Poland.
Źródło:: Studia Quaternaria; 2018, 35; 103-119
1641-5558
2300-0384
Pojawia się w:: Studia Quaternaria
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 16.

Tytuł:: Coastal dune dynamics along the northern Curonian Spit, Lithuania : toward an integrated database
Autorzy:: Bitinas, A.
Dobrotin, N.
Buynevich, I. V.
Molodkov, A.
Damušytė, A.
Pupienis, D.
Powiązania:: https://bibliotekanauki.pl/articles/2060456.pdf
Data publikacji:: 2018
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: palaeosols
ground-penetrating radar
GPR
IR-OSL
radiocarbon
magnetic susceptibility
Opis:: Sand dunes are the most prominent subjects of geological and geomorphological interest along the Curonian Spit - a mega-barrier that separates the Curonian Lagoon from the Baltic Sea. To date, an assessment of various parameters of migrating dunes along the spit has been based on comparative analysis of old maps or aerial and satellite images, as well as geodetic measurements. These investigations have allowed assessment of dune dynamics over a relatively short historical period (~1700s to present). The most recent detailed investigations of the Dead (Grey) Dunes along the Lithuanian part of the spit using ground-penetrating radar (GPR) and magnetic susceptibility (MS) surveys, supported by a radiocarbon (14C) chronological framework of palaeosols and infrared optically stimulated luminescence (IR-OSL) ages of sand horizons, have advanced our understanding of aeolian landscape evolution. The interpretation of dune activity and stability phases has been generally based on IR-OSL dating results of the sand layers located between radiocarbon-dated palaeosols. However, the influence of soil-forming processes on the IR-OSL dating results related to possible migration of natural radioactive isotopes via aeolian sand layers has not been previously considered. Hypotheses of dune reactivation and migration caused by abrupt regional climate shifts, catastrophic forest fires, anthropogenic influence, and more local forcings have been tested. An integrated approach to dune investigations has offered an estimate of the rates of sand accumulation and key phases of aeolian dynamics during both stormy and calm periods, as well as helped to extend the record of dune evolution to the mid-Holocene. The palaeoenvironmental and palaeodynamic reconstructions of the Dead Dunes suggest that this mid-Holocene phase of dune activity was of a local character and likely did not exceed several centuries.
Źródło:: Geological Quarterly; 2018, 62, 3; 553--562
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 17.

Tytuł:: Reading of ground-penetrating radar (gpr) images of prehistoric flint mine; case study from Krzemionki Opatowskie archaeological site in central Poland
Autorzy:: Welc, Fabian
Mieszkowski, Radosław
Conyers, Lawrence B.
Budziszewski, Janusz
Jedynak, Artur
Powiązania:: https://bibliotekanauki.pl/articles/2027072.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: ground-penetrating radar
prehistoric flint mines
Krzemionki Opatowskie
Polska
Polska
Opis:: Geo phys i cal sur veys con ducted in or der to map tun nels and ver ti cal shafts at the Neo lithic chert min ing field Krzemionki used a ground-pen e trat ing ra dar (GPR) to test hy poth e ses re gard ing ori en ta tion, depth and subsurface com - plex ity of these voids. Us ing two-di men sional re flec tion pro files the ver ti cal shafts, now mostly filled with lithic de - bris, were eas ily vis i ble. Am pli tude map ping vi su al ized de bris at shaft mar gins as well as a col lapsed ma te rial in side the voids. Some shal lower hor i zon tal tun nels were also vis i ble as sub-hor i zon tal pla nar re flec tions gen er ated from both ceil ing and floors of these void spaces. Ex ten sion of these in ter pre ta tions to un-mapped ar eas of the an cient min - ing dis trict and com plex ity of these pre his toric min ing fea tures could be ex am ined to de ter mine ex ca va tion in ten sity and ex ploi ta tion tech niques used dur ing the Neo lithic.
Źródło:: Studia Quaternaria; 2016, 33; 117-130
1641-5558
2300-0384
Pojawia się w:: Studia Quaternaria
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 18.

Tytuł:: Ultra-wideband 3D image processing for improving landmine detection with GPR
Autorzy:: Ligthart, E. E.
Yarovoy, A. G.
Roth, F.
Ligthart, L. P.
Powiązania:: https://bibliotekanauki.pl/articles/307781.pdf
Data publikacji:: 2005
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: ground penetrating radar
image processing
object detection
classification
clutter removal
Opis:: This paper describes a new landmine detection algorithm starting from high resolution 3D ground penetrating radar (GPR) images. The algorithm consists of two procedures, object detection and object classification; both strongly depend on the properties of 3D GPR images. The algorithm has been tested on data measured with an ultrawideband (UWB) video impulse radar (VIR) system developed by the International Research Centre for Telecommunications and Radar (IRCTR). It was found that the algorithm is able to detect all landmines (including difficult to detect M14 mines) and classifies almost all landmines correctly with a large reduction in the number of false alarms caused by clutter. It turns out that for clutter removal it is most effective to eliminate detected objects with a small height.
Źródło:: Journal of Telecommunications and Information Technology; 2005, 2; 9-15
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 19.

Tytuł:: Ground penetrating radar sounding on an active rock glacier on James Ross Island, Antarctic Peninsula region
Autorzy:: Fukui, Kotaro
Sone, Toshio
Strelin, Jorge A.
Torielli, Cesar A.
Mori, Junko
Powiązania:: https://bibliotekanauki.pl/articles/2051857.pdf
Data publikacji:: 2007
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Antarctic Peninsula
James Ross Island
rock glacier
ground penetrating radar
Źródło:: Polish Polar Research; 2007, 1; 13-22
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 20.

Tytuł:: The Castle Hill in Biecz and fortified stronghold in Kobylanka. The results of interdisciplinary research from 2019
Autorzy:: Kocańda, Paweł
Pisz, Michał
Rajchel, Bernadetta
Filipowicz, Michał
Powiązania:: https://bibliotekanauki.pl/articles/2085857.pdf
Data publikacji:: 2020
Wydawca:: Uniwersytet Rzeszowski. Instytut Archeologii Uniwersytetu Rzeszowskiego. Muzeum Okręgowe w Rzeszowie
Tematy:: castle
medieval archaeology
archaeological geophysics
ground-penetrating radar
magnetometry
stronghold
Opis:: In 2019, new research was initiated at two archaeological sites located on the Ropa River, in Gorlice County, in the southeastern part of Małopolska Province. The first site was the Castle Hill in Biecz, and the second one was the fortified stronghold in Kobylanka. The research consisted of three stages. Firstly, extensive archival and library queries were conducted in order to gather basic information about both sites. Secondly, surface research was performed in order to collect any movable monuments. During the third stage, a reconnaissance by means of GPR, electrical resistivity imaging and geo-magnetic survey was carried out. These provided plenty of new valuable information on the spatial layout of both sites. In the case of the Castle Hill, the analysis of the discovered anomalies allowed for the interpretation of some of the finds as remnants of the brick elements of the castle, e.g. the tower, which corresponds with the plan from 1877. The results of the analyses of the anomalies from the fortified stronghold in Kobylanka, with its ramparts made of stone and earth as well as inner circular housing, were far more ambiguous. Its chronology may date back to the early Middle Ages
Źródło:: Analecta Archaeologica Ressoviensia; 2020, 15; 139-163
2084-4409
Pojawia się w:: Analecta Archaeologica Ressoviensia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 21.

Tytuł:: Unknown Ancient Funerary Structures Discovered in West Saqqara (Egypt) Using Ground-Penetrating Radar (GPR)
Autorzy:: Welc, Fabian
Mieszkowski, Radosław
Powiązania:: https://bibliotekanauki.pl/articles/484148.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Instytut Kultur Śródziemnomorskich i Orientalnych PAN
Tematy:: ground-penetrating radar (GPR)
funerary architecture
Saqqara
Old Kingdom Egypt
Opis:: The ground-penetrating radar (GPR) survey conducted in the south-eastern part of the Polish archaeological concession in West Saqqara confirmed the high usability of the GPR method in non-invasive prospecting of desert archaeological sites. The survey has allowed to confirm the location of one and the discovery of two so far unknown funerary structures characterized by significantly large dimensions. Analysis of the reflection profiles allow to conclude that these anomalies are generated by rock-hewn burial shafts. Only one of these tombs can be dated with high confidence to the end of the Old Kingdom. Precise determination of the chronology of the two other structures is not possible without archaeological verification.
Źródło:: Études et Travaux (Institut des Cultures Méditerranéennes et Orientales de l’Académie Polonaise des Sciences); 2015, 28; 201-215
2084-6762
2449-9579
Pojawia się w:: Études et Travaux (Institut des Cultures Méditerranéennes et Orientales de l’Académie Polonaise des Sciences)
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 22.

Tytuł:: Complex analysis of GPR signals for the delineation of subsurface subtle features
Autorzy:: Akinsunmade, Akinniyi
Tomecka-Suchoń, Sylwia
Pysz, Paweł
Powiązania:: https://bibliotekanauki.pl/articles/184601.pdf
Data publikacji:: 2019
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: Ground Penetrating Radar (GPR)
electromagnetic energy
signal attributes
soil
compaction
Opis:: In this paper, complex signal analyses of ground penetrating radar (GPR) field data over an area of farmland in Krakow were interpreted alongside the basic filtered field data. The farmland was simulated with varying degrees of soil compaction induced by tractor movement. The focus of the study was the delineation of inherent characteristics of media through which the electromagnetic energy travelled. Fourteen GPR profiles were acquired from the area. The field data were subjected to pre- and post-processing prior to its the presentation and interpretation. Advance analysis operations on the field data which resorted in different attributes reveal more about the effects of the compaction on the soil than indicated by the basic filtered field data. Better resolution of subsurface layers boundary and lateral variation in the physical properties of the traversing media were well elucidated. The results have demonstrated that an advanced signal processing such as used in the study has ability to depict subtle characteristics of the propagating media.
Źródło:: Geology, Geophysics and Environment; 2019, 45, 4; 257-267
2299-8004
2353-0790
Pojawia się w:: Geology, Geophysics and Environment
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 23.

Tytuł:: Remote sensing of a roman pottery workshop. Report on a geophysical survey carried out in Crikvenica (ancient Ad Turres, Croatia)
Autorzy:: Welc, Fabian
Lipovac Vrkljan, Goranka
Konestra, Ana
Rosić, Tea
Powiązania:: https://bibliotekanauki.pl/articles/2026032.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: remote sensing
archaeology
geophysics
ground-penetrating radar
gradiometer
Crikvenica
Croatia
Opis:: The paper presents results of a geophysical survey conducted in Crikvenica, a town located at the north-eastern Adriatic Sea coast in Croatia. The main aim was to identify extent of a Roman pottery workshop discovered to the north of the present town, at the site known as “Igralište”. The performed magnetic and GPR surveys within the area of the modern playground in Crikvenica revealed a large number of anomalies that may be connected with anthropogenic activity during different periods, both in modern and ancient times. The first group consists of anomalies generated by remnants of the modern underground infrastructure. Magnetic and ground-penetrating radar maps revealed anomalies in the north-western part of the modern playground that can be very likely interpreted as remains of a large ceramic kiln dated back to the Roman Period, similar to the kiln discovered during the excavations located further to the north. Finally, the survey performed within the Crikvenica football stadium clearly indicates that the integration of different Ground Penetrating Radar and magnetic methods allows for a detailed and effective identification of buried archaeological structures in large areas.
Źródło:: Studia Quaternaria; 2017, 34; 119-130
1641-5558
2300-0384
Pojawia się w:: Studia Quaternaria
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 24.

Tytuł:: Development of the Holocene foredune plain in the Narva-Jõesuu area, eastern Gulf of Finland
Autorzy:: Rosentau, A.
Jõeleht, A.
Plado, J.
Aunap, R.
Muru, M.
Eskola, K. O.
Powiązania:: https://bibliotekanauki.pl/articles/2060031.pdf
Data publikacji:: 2013
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Holocene
Baltic Sea
foredunes
luminescence dating
ground penetrating radar
lidar
Opis:: The morphogenesis and inner structure of the Holocene foredune plain in the Narva-Joesuu area, eastern Gulf of Finland, were studied using optically stimulated luminescence (OSL) dating, ground-penetrating radar (GPR) study and interpretation of airborne LIDAR elevation data. The results show that the Narva-Joesuu foredune plain consists of ca. 100 parallel coastal foredune ridges built of well-sorted fine sand underlain by gently (~7°) seaward-dipping sandy beach deposits. The distal part of the plain, which consists of at least 15 ridges, formed during the regressive phase of the Ancylus Lake/Early Litorina Sea, serving as a barrier for the lagoon behind it. A larger portion of ridges, with an average progradation rate of 0.26 m a-1, formed under conditions of falling relative sea level during the Litorina regression and was separated from the older foredune succession by a hiatus related to the Litorina transgression at 8.5-7.3 cal. ka BP. In the highest central part of the plain the foredune growth was interrupted by foredune instability and a re-blowing episode dated to 5.4 ± 0.9 ka BP which may correlate with a larger regional cooling at 5.8-5.1 cal. ka BP in the North Atlantic and central Europe. During the last 3000 years, the foredune progradation rate decreased to 0.19 m a-1, most probably because of decelerated land-uplift and increased human impact due to coastal protection.
Źródło:: Geological Quarterly; 2013, 57, 1; 89--100
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 25.

Tytuł:: Effect of shallow subsurface flow pathway networks on corn yield spatial variation under different weather and nutrient management
Autorzy:: Morgan, B.J.
Daughtry, C.S.T.
Russ, A.L.
Dulaney, W.P.
Gish, T.J.
Pachepsky, Y.A.
Powiązania:: https://bibliotekanauki.pl/articles/2082501.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: subsurface flow pathways
ground penetrating radar
geographic weighted regression
corn yield
Opis:: Ground water availability can be a major spatially variable factor of crop yields. In soils with the infiltration-restricting layer, ground water can be organized in the network of channels that conduct water laterally in wet periods and become water storage and water subsidy sources for plants in dry periods. The objective of this work was to quantify the relationships between the distances to the subsurface flow pathway network and corn yield for different weather conditions and nutrient management. Corn yield was monitored across the manured and chemically fertilized fields at the USDA-ARS OPE3 experimental site in Maryland. Data were collected during dry, normal, and above normal years in terms of the amount of precipitation from planting to physiological maturity. The subsurface flow pathway network was delineated using ArcGIS from data on topography of the infiltration-restricting layer found mostly at depths between one and three meters. The geographically weighted regression was used. Adjusted determination coefficients of regressions ranged from 0.485 to 0.655. Decrease of the adjusted determination coefficients from a dry to normal year and an increase from the normal to wet year was found. Factoring the subsurface flow pathway network influence into crop management can be an important component of precision farming strategies.
Źródło:: International Agrophysics; 2019, 33, 2; 271-276
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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