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dc.contributor.authorUyar, Faruken_US
dc.contributor.authorKartaloğlu, Tolgaen_US
dc.contributor.authorÖzdür, Ibrahimen_US
dc.contributor.authorÖzbay, Ekmelen_US
dc.coverage.spatialOrlando, Florida, United Statesen_US
dc.date.accessioned2019-02-21T16:06:25Z
dc.date.available2019-02-21T16:06:25Z
dc.date.issued2018en_US
dc.identifier.isbn9781510618190en_US
dc.identifier.issn0277-786Xen_US
dc.identifier.urihttp://hdl.handle.net/11693/50310en_US
dc.descriptionDate of Conference: 17–18 April 2018en_US
dc.descriptionConference name: Proceedings of SPIE Fiber Optic Sensors and Applications XVen_US
dc.description.abstractIn this study, we present a direct detection distributed acoustic sensor based on phase-sensitive optical time domain reflectometer (φ-OTDR) with long sensing range and high signal-to-noise ratio (SNR), which is field-tested over a 50 kmlong fiber. Due to the random nature of Rayleigh backscattered light and fading phenomena, it is hard to characterize the performance of the system. For this reason, the performance of our sensor is specified in a statistical manner in which the mean SNR is determined using the histograms of the SNR. The SNR values are measured for identical acoustic signals in five different days, total of 48 hours and the SNR histograms are obtained for fiber distances of 100 m, 12 km, 21 km, 30 km, 40 km and 50 km. The system is field-tested using external disturbances that are generated from a 50-Hz vibrator. The SNR values are extracted from the power spectral density (psd) of the collected data over the monitored fiber span. Our results show that the φ-OTDR system exhibits a mean SNR of 22.5 dB at 50 km distance.
dc.language.isoEnglishen_US
dc.source.titleProceedings of SPIE 10654 Fiber Optic Sensors and Applications XVen_US
dc.relation.isversionofhttps://doi.org/10.1117/12.2304735en_US
dc.subjectDistributed acoustic sensoren_US
dc.subjectOptical time domain reflectometeren_US
dc.subjectφ-OTDRen_US
dc.subjectRayleigh scatteringen_US
dc.subjectFadingen_US
dc.titleField test and fading measurement of a distributed acoustic sensor system over a 50 km-long fiberen_US
dc.typeConference Paperen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.departmentDepartment of Physicsen_US
dc.citation.volumeNumber10654en_US
dc.identifier.doi10.1117/12.2304735
dc.publisherSPIE - International Society for Optical Engineeringen_US
dc.identifier.eissn1996-756Xen_US
buir.contributor.orcidÖzbay, Ekmel|0000-0003-2953-1828en_US


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