Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Guzel I. Abdrakhmanova"'
Autor:
Azat R. Gizatulin, Irina L. Vinogradova, Ivan K. Meshkov, Ilya A. Kuk, A. Kh. Sultanov, Guzel I. Abdrakhmanova, V. Kh. Bagmanov, Elizaveta P. Grakhova
Publikováno v:
Компьютерная оптика, Vol 43, Iss 6, Pp 983-991 (2019)
In this paper, using a modified model of slowly varying amplitudes, a process of optics-to-THZ-conversion of vortex beams based on the nonlinear difference frequency generation in a medium with second-order susceptibility is considered. A theoretical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93c92d0ff58ea25a18aa1563d2574228
http://computeroptics.smr.ru/KO/PDF/KO43-6/430608.pdf
http://computeroptics.smr.ru/KO/PDF/KO43-6/430608.pdf
Autor:
Elizaveta P. Grakhova, Irina L. Vinogradova, Guzel I. Abdrakhmanova, Albert Kh. Sultanov, Liana F. Sultanova, Aydar I. Salikhov
Publikováno v:
Optical Technologies for Telecommunications 2020.
The paper discusses a method for measuring the profile of the refractive index of an optical fiber and presents the results of a computational experiment that confirm the efficiency of the developed technique.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cf0c896f973cbb09d91f33eff46d4be
https://doi.org/10.1117/12.2593282
https://doi.org/10.1117/12.2593282
Autor:
Arsen A. Ishmiyarov, Ivan K. Meshkov, Elizaveta P. Grakhova, Azat R. Gizatulin, Guzel I. Abdrakhmanova, Irina L. Vinogradova, Albert Kh. Sultanov
Publikováno v:
2020 International Conference on Electrotechnical Complexes and Systems (ICOECS).
The paper discusses the principles of improving the efficiency of communication systems based on orthogonal frequency division multiplexing and Radio-over-Fiber technologies and operating in the W-band. Particularly, we propose methods aimed at reduc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4292f63e4c6b0b3ae86c63d557e66412
https://doi.org/10.1109/icoecs50468.2020.9278510
https://doi.org/10.1109/icoecs50468.2020.9278510
Autor:
Arsen A. Ishmiyarov, Ivan K. Meshkov, Guzel I. Abdrakhmanova, Elizaveta P. Grakhova, Valery Kh. Bagmanov, Albert Kh. Sultanov, Irina L. Vinogradova, Azat R. Gizatulin
Publikováno v:
2020 International Conference on Information Technology and Nanotechnology (ITNT).
The paper presents the development of a beamforming circuit aimed at controlling the state of an orbital angular moment of the output radio beam from a uniform circular antenna array operating in the W-band. The proposed device is based on the Rotman
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33d1e5ecfb7ebfba00da7b6a4fec82fe
https://doi.org/10.1109/itnt49337.2020.9253178
https://doi.org/10.1109/itnt49337.2020.9253178
Publikováno v:
Optical Technologies for Telecommunications 2019.
In this paper, we present the experimental impulse-radio transmission based on spectral modulation technique aimed at improving the energy efficiency, noise immunity and interception security of high-speed Radio-over-Fiber communication systems. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4737cbd5261b0004af80fae3eea4984f
https://doi.org/10.1117/12.2566514
https://doi.org/10.1117/12.2566514
Autor:
Arsen A. Ishmiyarov, Ivan K. Meshkov, Azat R. Gizatulin, Elizaveta P. Grakhova, Irina L. Vinogradova, Guzel I. Abdrakhmanova, Albert Kh. Sultanov, Valeriy Kh. Bagmanov, Ilya A. Kuk
Publikováno v:
Optical Technologies for Telecommunications 2019.
This paper describes the operation of the prototype of the Radio-over-Fiber telecommunication system with the generation of OAM signals in the W-band. A method for generation both a radio and an optical OAM signal in RoF is proposed, a method for use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::238e72aa63e314e942c3df70bf1847a6
https://doi.org/10.1117/12.2566515
https://doi.org/10.1117/12.2566515
Autor:
Ivan K. Meshkov, Arsen A. Ishmiyarov, Albert Kh. Sultanov, Guzel I. Abdrakhmanova, Vladimir A. Burdin, Vladimir V. Demidov, Valeriy Kh. Bagmanov, Irina L. Vinogradova, E. V. Ter-Nersesyants, Elizaveta P. Grakhova, Azat R. Gizatulin, Anton V. Bourdine, Ilya A. Kuk
Publikováno v:
Optical Technologies for Telecommunications 2019.
In this paper, an alternative fiber-optic method for forming vortex modes based on a chiral (twisted) microstructured fiber is proposed. This fiber can be considered as a ring-core fiber with ring core formed by capillaries. Besides, optical fibers d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfa34298f1b09b274db299ebff6676d4
https://doi.org/10.1117/12.2566512
https://doi.org/10.1117/12.2566512
Autor:
Elizaveta P. Grakhova, Grigory S. Voronkov, Gulshat Kadyrova, Guzel I. Abdrakhmanova, Pavel E. Filatov
Publikováno v:
2020 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT).
The design of a new microstrip antenna with the rejection possibility for 5G wireless networks is described in the paper. The antenna was calculated to have small size and low profile, providing the ease of manufacturing. Its total size is 13 mm × 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3940a2f503851894ffa312635e671d2e
https://doi.org/10.1109/usbereit48449.2020.9117713
https://doi.org/10.1109/usbereit48449.2020.9117713
Autor:
Guzel I. Abdrakhmanova, Irina L. Vinogradova, Ivan K. Meshkov, Albert Kh. Sultanov, Azat R. Gizatulin, Ilya A. Kuk, Valery Kh. Bagmanov, Elizaveta P. Grakhova
Publikováno v:
2019 27th Telecommunications Forum (TELFOR).
In this paper, we consider the conversion of optical vortex beams into the terahertz radio domain based on the nonlinear difference frequency generation in a medium with second-order susceptibility. A theoretical substantiation of the law for convert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19d062d6af1bf7e9f32078e75d0089b8
https://doi.org/10.1109/telfor48224.2019.8971332
https://doi.org/10.1109/telfor48224.2019.8971332
Autor:
Irina L. Vinogradova, Arsen A. Ishmiyarov, Elizaveta P. Grakhova, Albert Kh. Sultanov, Ivan K. Meshkov, Guzel I. Abdrakhmanova, Azat R. Gizatulin
Publikováno v:
2019 International Conference on Electrotechnical Complexes and Systems (ICOECS).
In this paper we present the Peak-to-Average Power Ratio decrease method targeted at energy efficiency improvement of the Radio-over-fiber telecommunication systems based on the Orthogonal Frequency Division Multiplexing. The scheme for the proposed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1fc384f4c1fc0f9fb86a7e9ba0a7957
https://doi.org/10.1109/icoecs46375.2019.8949932
https://doi.org/10.1109/icoecs46375.2019.8949932