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Description
  • Jsou uvedeny výsledky studie šíření elektromagnetických vln na optickém spoji v pásmu 850 nm a na paralelním mikrovlnném spoji v pásmu 58 GHz na skoku 850 m dlouhém za dvouleté období od srpna 2003 do července 2005. Byly získány kumulativní distribuce útlumů způsobených všemi hydrometeory dohromady. Je ukázáno, že kumulativní distribuce útlumů získané na optickém spoji jsou stabilnější nežli distribuce na rádiovém spoji, které vykazují velkou roční variabilitu. Pohotovost spoje a diverzitní charakteristiky simulovaného FSO/MMW hybridního spoje jsou posouzeny. Je uvedeno několik typických příkladů pozorovaných útlumů způsobených hydrometeory. Je ukázáno, že útlumy způsobené kombinací mlhy s deštěm a mlhy se sněhem mají také významný vliv na pohotovost hybridních systémů. (cs)
  • Results of a propagation study on a free space optical link at 850 nm on an 850 m long path and on a parallel MMW 58 GHz link over 2-year period from August 2003 to July 2005 are presented. Cumulative distributions of attenuation due to all hydrometeors together were obtained. It is shown that the cumulative distributions of attenuation obtained on the FSO path are much more stable than the cumulative distributions of attenuation on the MMW path which show a great year-to-year variability. Availability and diversity characteristics of the simulated FSO/MMW hybrid link were assessed. A few typical examples of attenuation events observed are given. It is shown that attenuation due to combination of fog with rain and fog with snow has also significant influence on availability of hybrid systems.
  • Results of a propagation study on a free space optical link at 850 nm on an 850 m long path and on a parallel MMW 58 GHz link over 2-year period from August 2003 to July 2005 are presented. Cumulative distributions of attenuation due to all hydrometeors together were obtained. It is shown that the cumulative distributions of attenuation obtained on the FSO path are much more stable than the cumulative distributions of attenuation on the MMW path which show a great year-to-year variability. Availability and diversity characteristics of the simulated FSO/MMW hybrid link were assessed. A few typical examples of attenuation events observed are given. It is shown that attenuation due to combination of fog with rain and fog with snow has also significant influence on availability of hybrid systems. (en)
Title
  • Availability of a simulated 850 nm FSO / 58 GHz MMW hybrid system
  • Availability of a simulated 850 nm FSO / 58 GHz MMW hybrid system (en)
  • Pohotovost simulovaného 850 nm FSO / 58 GHz MMW hybridního systému (cs)
skos:prefLabel
  • Availability of a simulated 850 nm FSO / 58 GHz MMW hybrid system
  • Availability of a simulated 850 nm FSO / 58 GHz MMW hybrid system (en)
  • Pohotovost simulovaného 850 nm FSO / 58 GHz MMW hybridního systému (cs)
skos:notation
  • RIV/00003468:_____/06:#0000093!RIV09-MPO-00003468
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MI00000346806)
http://linked.open...iv/cisloPeriodika
  • 3
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 466483
http://linked.open...ai/riv/idVysledku
  • RIV/00003468:_____/06:#0000093
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Hybrid systems; FSO; MMW link; link availability (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [922278B9D867]
http://linked.open...i/riv/nazevZdroje
  • The Mediterranean Journal of Electronics and Communications
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 2
http://linked.open...iv/tvurceVysledku
  • Grábner, Martin
  • Kvičera, Václav
http://linked.open...n/vavai/riv/zamer
issn
  • 1744-2400
number of pages
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