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Project detail
Duration: 01.01.2009 — 31.12.2011
Funding resources
Czech Science Foundation - Standardní projekty
- whole funder (2009-01-01 - 2011-12-31)
On the project
Projekt se zabývá aktuální a perspektivní problematikou: základním výzkumem vlastností nových typů optických zdrojů a jejich optickými svazky použitelnými pro optickou bezkabelovou komunikaci. Je zaměřen jak na problematiku vnějších, tak na problematiku vnitřních optických sítí. Zkoumány jsou jak nekoherentní zdroje (zejména výkonové LED), tak koherentní zdroje. U všech těchto zdrojů je studován vliv prostředí na polarizaci a koherenci optických vln a hledán je optimální profil svazku vzhledem k plošné distribuci optické intenzity. Projekt se zabývá nejen teoretickými aspekty (modelováním optických svazků a atmosféry), ale také problémy měření a metodiky měření s ohledem na optickou mobilní komunikaci. Projekt řeší možnosti implementace prvků vláknové optiky (EDFA, WDM a ADM) do technologie bezkabelových spojů a přístupů této technologie ke komunikačním sítím. Na základě modelu interakce světla a atmosféry jsou navrženy modulační techniky a stanoveny komunikační limity týkající se přenosové rychlosti, spolehlivosti a chybovosti spojů při zachování mobility optických stanic.
Description in EnglishThe project deals with current and timely problems: basic research of new types of optical sources and the properties of their optical beams applicable for optical wireless communication. It zeros in on both the problems of external and internal optical networks. Different types of sources are examined, especially power LEDs and coherent sources (diode and gas lasers). The polarization effect and their coherence are under investigation in the form of optical waves; and the optimum beam profile regarding optical intensity distribution is sought in all of these sources. The project deals not only with theoretical aspects and optical beams and atmosphere simulation, but also with the measurement problems and measurement methodology with regard to the optical mobile communications in both external and internal areas. The project solves different possibilities of the implementation of elements (EDFA, WDM and ADM), and fiber optics approach with regard to the technology of the wireless connections. Based on the light and atmospheric interaction model, the modulation techniques are designed and the communication limits concerning the connections bit rate, reliability and bit error rate, along with the optical stations mobility maintenance, are defined.
Keywordsatmosférické optické spoje; vnitřní optické bezkabelové spoje; optické vysílače; optické přijímače
Key words in Englishatmospheric optical links; indoor optical wireless communications; optical transmitters; optical receivers
Mark
GA102/09/0550
Default language
Czech
People responsible
Wilfert Otakar, prof. Ing., CSc. - principal person responsible
Units
Department of Radio Electronics- beneficiary (2009-01-01 - not assigned)
Results
PROKEŠ, A.; ŠKORPIL, V. Estimation of Free Space Optics Systems Availability Based on Meteorological Visibility. In Proocedings of The IEEE Latin-American Conference on Communications 2009 (LATINCOM 2009). Medellin, Kolumbie: IEEE New York, NY 10017 USA, 2009. p. 1-4. ISBN: 978-1-4244-4387-1.Detail
KUBÍČEK, M.; KOLKA, Z. FPGA-based In-system Jitter Measurement. In ISMOT Proceedings 2011. 1. Technická 2, Praha 6, 166 27: Fakulta elektrotechniky, ČVUT, 2011. p. 277-280. ISBN: 978-80-01-04887-0.Detail
KOLKA, Z.; BIOLKOVÁ, V. Model of Atmospheric Optical Transmission Channel. In New Information and Multimedia Technologies (NIMT 2009). Brno: Brno University of Technology, 2009. p. 48-51. ISBN: 978-80-214-3930-6.Detail
KOLKA, Z.; BIOLEK, D.; BIOLKOVÁ, V. Simulation of Atmospheric Optical Channel with ISI. In Proceedings of the 8th WSEAS International Conference on Circuits, Systems, Electronics, Control & Signal Processing (CSECS'09). Puerto de la Cruz, Spain: WSEAS, 2009. p. 198-201. ISBN: 978-960-474-139-7.Detail
KOLKA, Z.; KŘIVÁK, P.; KOVÁŘ, J. Adaptive Voltage Source for Avalanche Photodiodes. In Proc. of Radioelektronika 2009. Bratislava: STU Bratislava, 2009. p. 123-126. ISBN: 978-80-214-3865-1.Detail
DORDOVÁ, L.; WILFERT, O. Comparison of Turbulent Attenuation Determined by Rytov and Available Power Method. In Proceedings of CLEO/PACIFIC RIM 2009- THE 8th PACIFIC RIM CONFERENCE ON LASERS AND ELECTRO-OPTICS. Shanghai, China: 2009. p. 1-2. ISBN: 978-1-4244-3829-7.Detail
DORDOVÁ, L.; WILFERT, O. Free Space Optical Link Range Determination on the Basis of Meteorological Visibility. In Proceedings of 19th International Conference Radioelektronika 2009. 2009. p. 333-336. ISBN: 978-80-214-3865-1.Detail
KOLKA, Z.; BIOLKOVÁ, V. Analytical Solution of Multipath-Propagation Scenario in FSO Channel. In Proc of New Informstion and Multimedia Technologies (NIMT 2010). Brno: VUT v Brně, 2010. p. 66-69. ISBN: 978-80-214-4126-2.Detail
KOLKA, Z.; BIOLEK, D.; BIOLKOVÁ, V. Model of Atmospheric Optical Channel with Scattering. In Proceedings of the 14th WSEAS international conference on Communications (ICCOM'10). Greece: WSEAS, 2010. p. 141-144. ISBN: 978-960-474-200-4.Detail
KOLKA, Z.; BIOLKOVÁ, V.; BIOLEK, D. Availability Study of FSO Systems in Europe. In Proceedings of European Conference of Communications (ECCOM'10). Puerto De La Cruz, Spain: WSEAS, 2010. p. 100-103. ISBN: 978-960-474-250-9.Detail
DVOŘÁK, F.; DIBLÍK, J.; VLČEK, Č.; WILFERT, O. Study of temperature turbulences effect towards linearly polarized optical beam propagating in atmospheric environment. In Proceedings of 21st International Conference Radioelektronika 2011. 2011. p. 185-188. ISBN: 978-1-61284-322-3.Detail
KUBÍČEK, M. In-System Jitter Measurement Using FPGA. In Proceedings of 20th International Conference Radioelektronika 2010. Brno, Česká republika, Vysoké učení technické v Brně.: Department of Radio Electronics, Brno University of Technology, 2010. p. 187-190. ISBN: 978-1-4244-6319-0.Detail
HENNIGER, H.; WILFERT, O. An Introduction to Free-space Optical Communication. Radioengineering, 2010, vol. 19, no. 2, p. 203-212. ISSN: 1210-2512.Detail
PROKEŠ, A. Modeling of Atmospheric Turbulence Effect on Terrestrial FSO Link. Radioengineering, 2009, vol. 18, no. 1, p. 42-47. ISSN: 1210-2512.Detail
PROKEŠ, A. Atmospheric Effects on Availability of Free Space Optics Systems. Optical Engineering, 2009, vol. 48, no. 6, p. 1-12. ISSN: 0091-3286.Detail
DORDOVÁ, L.; WILFERT, O. Calculation and Comparison of Turbulence Attenuation by Different Methods. Radioengineering, 2010, vol. 19, no. 1, p. 162-167. ISSN: 1210-2512.Detail
FIŠER, O.; WILFERT, O. Novel processing of Tipping-Bucket Rain Gauge Records - Examples from Czech Republic. ATMOSPHERIC RESEARCH, 2009, vol. 92, no. 1, p. 283-288. ISSN: 0169-8095.Detail
WILFERT, O.; KOLKA, Z.; BIOLKOVÁ, V.; PROKEŠ, A.; DORDOVÁ, L. Dílčí zpráva o řešení grantového projektu GAČR 102/09/0550 "Studium optických svazků pro atmosférické statické a mobilní komunikace". 2009. s. 1-30.Detail
HUDCOVÁ, L.; WILFERT, O. Optimum of Receiving Lens Diameter for Gaussian and Top Hat Beam. In Proceedings 25th International Symposium on Microwave and Optical Technology. 2011. p. 109-112. ISBN: 978-80-01-04887-0.Detail
WILFERT, O.; KOMRSKA, J.; POLIAK, J.; KOLKA, Z. Influence of Optical Elements on the Laser Beam Profile. In Proceedings of the Optics & Photonics 2011 Conference on Free-Space and Atmospheric Laser Communications XI. San Diego: SPIE, 2011. p. 1-7. ISBN: 978-0-8194-8772-8.Detail
POLIAK, J.; KOMRSKA, J.; WILFERT, O. Wave Effects in FSO Links and Their Influence on Transmitted Laser Beam. In Optické Komunikace 2011. Praha: Agentura Action M, 2011. p. 62-65. ISBN: 978-80-86742-32-8.Detail
WILFERT, O.; PROKEŠ, A.; DIBLÍK, D.; HRBÁČKOVÁ, P. Power budget model for indoor wireless optical link. In Proceedings of SPIE Free-Space and Atmospheric Laser Communications XI. San Diego, CA, USA: SPIE, 2011. p. 81620W-1 (81620W-6 p.)ISBN: 978-0-8194-8772-8.Detail
FANJUL-VÉLEZ, F.; WILFERT, O.; HAMPL, M. Multimode Fiber-based Transmitter for Free Space Optical Communications. In Photonics, Devices, and Systems V (Proceedings of SPIE Volume 8306). USA: SPIE, 2011. p. 110-117. ISBN: 978-0-8194-8953-1.Detail
KOLKA, Z.; KUBÍČEK, M.; BIOLKOVÁ, V.; HLAVIČKOVÁ, I. Analysis of CDR with Simplified Selection of Sampling Domain. In Proceedings of the IEEE Region 8 AFRICON 2011 conference. Livingstone, Zambia: IEEE, 2011. p. 1-4. ISBN: 978-1-61284-993-5.Detail
KOLKA, Z.; KUBÍČEK, M.; BIOLEK, D.; BIOLKOVÁ, V.; ZEMAN, V. Statistical Model of Blind-Oversampling Data Recovery with Probabilistic Domain Selection. In Proceedings of the 6th International Scientific Conference Communication and Information Technologies 2011. Liptovský Mikuláš: AFCEA, 2011. p. 1-6. ISBN: 978-80-8040-426-0.Detail
KOLKA, Z.; BIOLEK, D.; BIOLKOVÁ, V. Intersymbol Interference in Atmospheric Optical Channel. In Komunikačné a informačné technológie 2009. Slovakia: Akadémia ozbrojených síl gen. M. R. Štefánika, 2009. p. 1-5. ISBN: 978-80-8040-376-8.Detail