Zobrazeno 1 - 10
of 76
pro vyhledávání: '"V.V. Kopeikin"'
Publikováno v:
2018 17th International Conference on Ground Penetrating Radar (GPR).
We discuss geophysical applications of enhanced-power ground penetrating radar. Its technical characteristics assure penetration depth and resolution sufficient for probing weak subsurface boundaries, such as buried riverbeds or interfaces between na
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4476c958707f34f83c3c8cd4a7d602e
https://doi.org/10.1109/icgpr.2018.8441525
https://doi.org/10.1109/icgpr.2018.8441525
Publikováno v:
2017 9th International Workshop on Advanced Ground Penetrating Radar (IWAGPR).
We describe the principles of penetration depth enhancement implemented in Loza GPR series, examples of experimental deep radargrams, and a simplified solution of the inverse problem, based on the coupled WKB approximation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db1205b14c0ce54aa6e81a47ea3abda5
https://doi.org/10.1109/iwagpr.2017.7996052
https://doi.org/10.1109/iwagpr.2017.7996052
Autor:
V. A. Alexeev, S. V. Merkulov, P.A. Morozov, A.I. Berkut, V. D. Kuznetsov, A.V. Popov, V.V. Kopeikin
Publikováno v:
Geochemistry International. 51:575-582
The bottom of Lake Chebarkul’ was investigated by ground penetrating radar at the fall site of a large fragment of the Chelyabinsk meteorite. Linear profiles and 3D reconstructions revealed an anomalous depression of the lake floor relief and the d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9634422d2730097bdb06c408fa1050d6
https://doi.org/10.1134/s0016702913070112
https://doi.org/10.1134/s0016702913070112
Publikováno v:
Proceedings of the 15th International Conference on Ground Penetrating Radar.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfa9a5175ed927f771eedae7187347a2
https://doi.org/10.1109/icgpr.2014.6970582
https://doi.org/10.1109/icgpr.2014.6970582
Autor:
V.V. Kopeikin, N.V. Gouminov
Publikováno v:
2008 9th International Workshop and Tutorials on Electron Devices and Materials.
The report considers ultrawideband communication system with a code carrier, mechanism and experimental results of operation of a sample of such system.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3266557bfd9d969a8ef60c50dbbdbbd
https://doi.org/10.1109/sibedm.2008.4585882
https://doi.org/10.1109/sibedm.2008.4585882
Autor:
Stanislav Klimov, S.P. Kingsley, T.A. Lachlan-Cope, L. J. C. Woolliscroft, Michael Paul Gough, H.G. Muller, Vladimir Krasnoselskikh, A.E. Reznikov, V.V. Kopeikin, A.M. Natanzon
Publikováno v:
Advances in Space Research. 10:35-38
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f666db468d495fb42055da91b6345ec2
https://doi.org/10.1016/0273-1177(90)90321-p
https://doi.org/10.1016/0273-1177(90)90321-p
Autor:
Z. Bin, F. Guangyou, A.V. Popov, P.A. Morozov, I.V. Krasheninnikov, V.V. Kopeikin, L. Xiaojun
Publikováno v:
2007 4th International Workshop on, Advanced Ground Penetrating Radar.
Experimental GPR survey data obtained in Yingshan and Tianmo parks (Beijing) are presented. The purpose was to estimate actual penetration depth and signal quality of LOZA-V GPR in generic Chinese soil conditions. This subsurface monopulse radar, usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56816e1fb871a5344d7ffbd4bede1b9a
https://doi.org/10.1109/agpr.2007.386558
https://doi.org/10.1109/agpr.2007.386558
Publikováno v:
Electronics Letters. 39:550
A simple and efficient method of high-frequency electromagnetic pulse simulation is proposed. An asymptotic solution yields a paraxial version of geometric optics with complex eikonals and amplitudes determined from numerical solution of the paraboli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f871f2e21e116531d5364889e1b9002e
https://doi.org/10.1049/el:20030338
https://doi.org/10.1049/el:20030338
Publikováno v:
Electronics Letters. 38:691
On the basis of the time-domain parabolic equation, a numerical simulation of single pulse electromagnetic (EM) propagation over a smoothly non-uniform terrain is performed. Ground conductivity is taken into account via a generalised impedance bounda
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c8ae2e32e08fc39a2a9bc9e0b712a7a
https://doi.org/10.1049/el:20020426
https://doi.org/10.1049/el:20020426
Publikováno v:
Polymer Science U.S.S.R.. 29:413-420
The dye-spectral shift method (using methyl orange) has been used to assess the microenvironment of polyelectrolytic complexes formed by sodium dodecylsulphate with a copolymer of N-vinylpyrrolidone and the iodethylate of N,N-diethylamino-ethylmethac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71f01164b304d41df76fda4deda12c76
https://doi.org/10.1016/0032-3950(87)90355-8
https://doi.org/10.1016/0032-3950(87)90355-8