Defensive Perimeter Detection by Polarization Change of the Fibre Optic Signal
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F19%3A00555445" target="_blank" >RIV/60162694:G43__/19:00555445 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26220/19:PU134114
Result on the web
<a href="http://spie.org/x1848.xml" target="_blank" >http://spie.org/x1848.xml</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2532529" target="_blank" >10.1117/12.2532529</a>
Alternative languages
Result language
angličtina
Original language name
Defensive Perimeter Detection by Polarization Change of the Fibre Optic Signal
Original language description
The accurate measurement of temperature changes is the key skill not only for predictions of various natural phenomena or to detect intrusion of the object. The temperature changes we nowadays measure in local climate zones or Urban Heat Islands. The environmental quality is an essential feature of life quality and to improve it serve many remote sensing-based urban planning indicators, which are the common part of present smart cities. Continuously developing fibre optic sensors allow their benefits to be exploited in more and more applications. Defensive Perimeter Detection by Polarization Change of the Fiber Optic Signal offers an effective possibility to detect quickly and in time disturbing a predefined space. This detection system uses the polarizing properties of light and, in particular, the birefringence of optical fibres. The disclosed detection system focuses on temperature changes that may be caused by external or internal disruption of the site. The main detection equipment is the polarization maintaining optical fibre with the same excitation in both polarization axes. The transmission rate in both axes is in the ideal case the same, but due to birefringence, inhomogeneity, and imperfection of production and next causes the mutual delay of both signals causes the signal polarization state change or even the series of polarization states changes, which can be observed in laboratory conditions and described by known mathematical methods. However, these changes can be transformed by linear polarizer to the intensity changes. This conversion allows the changes significantly easier to evaluate.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
<a href="/en/project/VI20192022140" target="_blank" >VI20192022140: Detection of Defence Perimeter Disturbance by Instaneous Changing of Optical Signal Polarization</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
REMOTE SENSING TECHNOLOGIES AND APPLICATIONS IN URBAN ENVIRONMENTS IV
ISBN
978-1-5106-3017-8
ISSN
0277-786X
e-ISSN
1996-756X
Number of pages
6
Pages from-to
—
Publisher name
SPIE-INT SOC OPTICAL ENGINEERING
Place of publication
Strasbourg, FRANCE
Event location
Strasbourg, FRANCE
Event date
Sep 9, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000511152100016