• Positioning Error Reduction Te...

Treffer: Positioning Error Reduction Technique Using Spectrum Reshaping for Distributed Fiber Interferometric Vibration Sensor

Title:
Positioning Error Reduction Technique Using Spectrum Reshaping for Distributed Fiber Interferometric Vibration Sensor
Authors:
SHANGRAN XIE, MIN ZHANG, YANHE LI, YANBIAO LIAO
Source:
Journal of lightwave technology. 30(21-24):3520-3524
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2012.
Publication Year:
2012
Physical Description:
print, 17 ref
Original Material:
INIST-CNRS
Subject Terms:
Electronics, Electronique, Optics, Optique, Telecommunications, Télécommunications, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Generalites, General, Instruments, appareillage, composants et techniques communs à plusieurs branches de la physique et de l'astronomie, Instruments, apparatus, components and techniques common to several branches of physics and astronomy, Techniques et équipements généraux, General equipment and techniques, Capteurs (chimiques, optiques, électriques, de mouvement, de gaz, etc.); télédétection, Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing, Instrumentation, équipement et techniques optiques, Optical instruments, equipment and techniques, Instruments à fibre optique, Fiber-optic instruments, Sciences appliquees, Applied sciences, Electronique, Electronics, Circuits électriques, optiques et optoélectroniques, Electric, optical and optoelectronic circuits, Propriétés des circuits, Circuit properties, Circuits optiques et optoélectroniques, Optical and optoelectronic circuits, Optique intégrée. Fibres et guides d'onde optiques, Integrated optics. Optical fibers and wave guides, Telecommunications et theorie de l'information, Telecommunications and information theory, Théorie de l'information, du signal et des communications, Information, signal and communications theory, Théorie du signal et des communications, Signal and communications theory, Signal, bruit, Signal, noise, Détection, estimation, filtrage, égalisation, prédiction, Detection, estimation, filtering, equalization, prediction, Algorithme, Algorithm, Algoritmo, Basse fréquence, Low frequency, Baja frecuencia, Capteur fibre optique, Fiber optic sensors, Capteur vibration, Vibration transducer, Transductor vibración, Correction erreur, Error correction, Corrección error, Corrélation croisée, Cross correlation, Correlación cruzada, Erreur quadratique moyenne, Mean square error, Error medio cuadrático, Essai en champ, Field experiment, Ensayo en campo, Fibre optique, Optical fiber, Fibra óptica, Filtre passe haut, High pass filter, Filtro paso alto, Fréquence coupure, Cut off frequency, Frecuencia corte, Haute fréquence, High frequency, Alta frecuencia, Interférence signal, Signal interference, Interféromètre Mach Zehnder, Mach Zehnder interferometer, Interferómetro Mach Zehnder, Interférométrie, Interferometry, Interferometría, Méthode corrélation, Correlation method, Método correlación, Optique intégrée, Integrated optics, Optica integrada, Positionnement, Positioning, Posicionamiento, Rapport signal bruit, Signal to noise ratio, Relación señal ruido, Spectre puissance, Power spectrum, Espectro potencia, Système réparti, Distributed system, Sistema repartido, Vibromètre, Vibrometer, Vibrómetro, 0707D, 0760V, -Distributed vibration sensor, cross correlation, dual Mach-Zehnder interferometer, time delay estimation
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
Department of Electronic Engineering, Tsinghua Uni- , versity, Beijing 10080, China
ISSN:
0733-8724
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=26777795
Rights:
Copyright 2014 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Electronics

Metrology

Telecommunications and information theory
Accession Number:
edscal.26777795
Database:
PASCAL Archive

Weitere Informationen

A novel positioning error reduction technique is proposed for dual Mach-Zehnder fiber interferometric distributed vibration sensor. The 3 dB bandwidth of the power spectrum of interference signal is broadened to reduce the mean square error (MSE) of the cross-correlation based positioning algorithm. A high-pass filter (HPF) whose cutoff frequency is larger than the upper frequency of signal 3 dB bandwidth is applied to reshape the original power spectrum by attenuating the magnitude of low-frequency mainlobe to the same order as that of the small high-frequency components. The usage of HPF can cause bandwidth broadening and signal to noise ratio (SNR) reduction, the influence of both effects on ultimate positioning MSE are analyzed in detail. Theoretical analysis shows that there exists a valid region for the cutoff frequency of the HPF within which the contribution of bandwidth broadening dominates the process. The technique is also experimentally verified and analyzed by field test on an installed submarine cable between two islands of Zhejiang Province, China. Field test results coincide with the theoretical predictions and show that a maximum of 7 dB reduction of positioning MSE can be achieved when optimal cutoff frequency of HPF is used.