%0 Journal Article 
%A Tejedor Noguerales, Javier
%A Fidalgo Martins, Hugo
%A Piote, D.
%A Macías Guarasa, Javier
%A Pastor Graells, Juan
%A Martín López, Sonia
%A Corredera, Pedro
%A De Smet, F.
%A Postvoll, W.
%A González Herráez, Miguel
%T Toward prevention of pipeline integrity threats using a smart fiber-optic surveillance system
%D 2016
%@ 0733-8724
%U http://hdl.handle.net/10017/27817
%X This paper presents the first available report in the
literature of a system aimed at the detection and classification
of threats in the vicinity of a long gas pipeline. The system is
based on phase-sensitive optical time-domain reflectometry technology
for signal acquisition and pattern recognition strategies for
threat identification. The system operates in two different modes:
1) machine+activity identification, which outputs the activity being
carried out by a certain machine; and 2) threat detection, aimed
at detecting threats no matter what the real activity being conducted
is. Different strategies dealing with position selection and
normalization methods are presented and evaluated using a rigorous
experimental procedure on realistic field data. Experiments
are conducted with eight machine+activity pairs, which are further
labeled as threat or nonthreat for the second mode of the system.
The results obtained are promising given the complexity of the task
and open the path to future improvements toward fully functional
pipeline threat detection systems operating in real conditions.
%K Distributed acoustic sensing (DAS)
%K Fiberoptic systems
%K Phase-sensitive optical time-domain reflectometry (φ-OTDR)
%K Pipeline integrity threat monitoring
%K Electrónica
%K Electronics
%~ Biblioteca Universidad de Alcala