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dc.creatorMompó Roselló, Juan Josées_ES
dc.creatorShiloh, Lihies_ES
dc.creatorArbel, Nadaves_ES
dc.creatorLevanon, Nadaves_ES
dc.creatorLoayssa Lara, Alaynes_ES
dc.creatorEyal, Avishayes_ES
dc.date.accessioned2020-03-20T08:50:49Z
dc.date.available2020-04-26T23:00:13Z
dc.date.issued2019
dc.identifier.citationJ. J. Mompó, L. Shiloh, N. Arbel, N. Levanon, A. Loayssa and A. Eyal, 'Distributed Dynamic Strain Sensing via Perfect Periodic Coherent Codes and a Polarization Diversity Receiver,' in Journal of Lightwave Technology, vol. 37, no. 18, pp. 4597-4602, 15 Sept.15, 2019.en
dc.identifier.issn0733-8724
dc.identifier.urihttps://hdl.handle.net/2454/36531
dc.description.abstractRayleigh scattering-based dynamic strain sensing with high spatial resolution, fast update rate, and high sensitivity is highly desired for applications such as structural health monitoring and shape sensing. A key issue in dynamic strain sensing is the tradeoff between spatial resolution and the Signal-to-Noise Ratio (SNR). This tradeoff can be greatly relaxed with the use of coding. A sequence of optical pulses is injected into the fiber and the detected backscattered signal is cross correlated with the original signal. With the use of coding, SNR is indeed improved, but if the sequence is not well chosen, the resulting Peak to Sidelobe Ratio (PSR) can be rather low. An excellent choice of codes are biphase Legendre sequences which offer near Perfect Periodic Autocorrelation (PPA). Other common issues in Rayleigh scattering-based sensing techniques are signal fading and dynamic range. The former issue can occur due to destructive interference between lightwaves that are scattered from the same spatial resolution cell and, in coherent detection schemes, when the polarization states of the backscattered light and the reference light are mismatched. The latter issue is a concern in phase sensitive schemes which require signal jumps not to exceed 2π. In this paper, a biphase Legendre sequence with 6211 pulses is used in conjunction with polarization diversity scheme and a PM fiber. The setup provides two independent measurements of the sensing fiber complex profile and achieves highly sensitive, distributed dynamic strain sensing with very low probability of fading. In addition, the system can handle both very large perturbation signals and very small perturbation signals. The system operated at a scan rate of ∼107 kHz and achieved spatial resolution of ∼10 cm and sensitivity of ∼1.1mrad/√ Hz. The ratio between the powers of the maximum and minimum excitations that can be measured by the system is 136 dB.en
dc.description.sponsorshipThis work was supported in part by the Israeli Ministry of Science and Technology and in part by Universidad Pública de Navarra, Feder Funds, and Spanish Ministerio de Economía y Competitividad through the Project TEC2016-76021-1R.en
dc.format.extent6 p.
dc.format.mimetypeapplication/pdfen
dc.language.isoengen
dc.publisherIEEEen
dc.relation.ispartofJournal of Lightwave Technology, 2019, 37 (18), 4597-4602en
dc.rights© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.en
dc.subjectFiber optical sensorsen
dc.subjectOptical time domain reflectometryen
dc.subjectPhase modulationen
dc.subjectRayleigh scatteringen
dc.titleDistributed dynamic strain sensing via perfect periodic coherent codes and a polarization diversity receiveren
dc.typeinfo:eu-repo/semantics/articleen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentUniversidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicaciónes_ES
dc.contributor.departmentNafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko, Elektroniko eta Telekomunikazio Sailaeu
dc.contributor.departmentUniversidad Pública de Navarra / Nafarroako Unibertsitate Publikoa. ISC - Institute of Smart Citieses_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.embargo.terms2020-04-26
dc.identifier.doi10.1109/JLT.2019.2913464
dc.relation.projectIDinfo:eu-repo/grantAgreement/ES/1PE/TEC2016-76021en
dc.relation.publisherversionhttps://doi.org/10.1109/JLT.2019.2913464
dc.type.versioninfo:eu-repo/semantics/acceptedVersionen
dc.type.versionVersión aceptada / Onetsi den bertsioaes
dc.contributor.funderUniversidad Pública de Navarra / Nafarroako Unibertsitate Publikoaes


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