Generalized Decision Aggregation in Distributed Sensing Systems

2014 ◽  
Author(s):  
Lu Su ◽  
Qi Li ◽  
Shaohan Hu ◽  
Shiguang Wang ◽  
Jing Gao ◽  
...  
Keyword(s):  
Distributed Sensing ◽  
Sensing Systems

A novel fitting algorithm for Brillouin scattering spectrum of distributed sensing systems based on RBFN networks

Optik ◽  
2013 ◽  
Vol 124 (8) ◽  
pp. 718-721 ◽  
Author(s):  
Yanjun Zhang ◽  
Guangwei Fu ◽  
Yin Liu ◽  
Weihong Bi ◽  
Da Li
Keyword(s):  
Brillouin Scattering ◽  
Distributed Sensing ◽  
Sensing Systems ◽  
Scattering Spectrum ◽  
Fitting Algorithm

scholarly journals Distributed Sensing Based on Interferometry and Polarization Methods for Use in Fibre Infrastructure Protection

Sensors ◽  
2019 ◽  
Vol 19 (8) ◽  
pp. 1810
Author(s):  
Petr Munster ◽  
Tomas Horvath ◽  
Josef Vojtech
Keyword(s):  
Direct Detection ◽  
Average Power ◽  
Distributed Sensing ◽  
Acoustic Vibrations ◽  
Fibre Optic ◽  
Laboratory Measurements ◽  
Unexpected Events ◽  
Infrastructure Protection ◽  
Sensing Systems

Fibre optic infrastructures are very important, and therefore, it is necessary to protect them from fibre cuts. Most fibre cuts are caused by digging activity, and many network operators seek appropriate solutions enabling detection of possible unexpected events (predict these cuts) and subsequent network outages. In most cases, there is no need to locate events, and only information regarding the occurrence of the event is sufficient. Direct detection-based distributed fibre optic sensing systems appear to be an appropriate solution, allowing digging to be detected before the fibre breaks. The average power of such signals is relatively small, and there is no interference with other signals in the fibre. We performed laboratory measurements to compare the sensitivity and accuracy of interferometric and polarization systems for acoustic vibrations. In the case of interferometric systems, the reference and sensing arms were in the same cable, and both were subjected to acoustic vibrations.

Fiber optic distributed sensing systems for harsh aerospace environments

1999 ◽  
Author(s):  
Eric Udd ◽  
Whitten L. Shulz ◽  
John M. Seim ◽  
Mike Morrell ◽  
Thomas L. Weaver ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Distributed Sensing ◽  
Sensing Systems
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