Photonic Services for Time and Frequency Transmission in the Czech Republic
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F63839172%3A_____%2F13%3A10130207" target="_blank" >RIV/63839172:_____/13:10130207 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.4028/www.scientific.net/AMM.421.721" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/AMM.421.721</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/AMM.421.721" target="_blank" >10.4028/www.scientific.net/AMM.421.721</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Photonic Services for Time and Frequency Transmission in the Czech Republic
Popis výsledku v původním jazyce
In every country exists a time and frequency laboratory that operates a certain set of atomic clocks with goal to provide national approximation of UTC time scale. Generally, higher number of these interconnected clocks (Caesium primary standards and Hydrogen masers) might improve accuracy and stability of the time scale. The term "interconnection" in this context means that we have to transfer time between them despite of their location at geographically distant places - the common method is a dedicated two-way satellite link or a GPS based system, however utilization of fibre links constantly increases. And present all-optical networks allow stable transmission of information. However to increase stability specific measures are necessary. Contribution summarizes the reasons for building of infrastructure dedicated to transfer of accurate time and frequency in the Czech Republic. It shows achieved results and indicated necessary steps for further stability improvements.
Název v anglickém jazyce
Photonic Services for Time and Frequency Transmission in the Czech Republic
Popis výsledku anglicky
In every country exists a time and frequency laboratory that operates a certain set of atomic clocks with goal to provide national approximation of UTC time scale. Generally, higher number of these interconnected clocks (Caesium primary standards and Hydrogen masers) might improve accuracy and stability of the time scale. The term "interconnection" in this context means that we have to transfer time between them despite of their location at geographically distant places - the common method is a dedicated two-way satellite link or a GPS based system, however utilization of fibre links constantly increases. And present all-optical networks allow stable transmission of information. However to increase stability specific measures are necessary. Contribution summarizes the reasons for building of infrastructure dedicated to transfer of accurate time and frequency in the Czech Republic. It shows achieved results and indicated necessary steps for further stability improvements.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
JA - Elektronika a optoelektronika, elektrotechnika
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/LM2010005" target="_blank" >LM2010005: Velká infrastruktura CESNET</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2013
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Applied Mechanics and Materials
ISSN
1662-7482
e-ISSN
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Svazek periodika
2013
Číslo periodika v rámci svazku
421
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
4
Strana od-do
721-724
Kód UT WoS článku
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EID výsledku v databázi Scopus
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