A Space-Division Multiplexing Method for Fading Noise Suppression in the Φ-OTDR System

Phase-sensitive time-domain reflectometry (Φ-OTDR) can be used for fully distributed long-distance vibration monitoring. There is a fading phenolmenon in the Φ-OTDR, which will cause the signal intensity somewhere to be too low to extract the phase of the signal without distortion. In this paper, th...

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Bibliographic Details
Main Authors: Yixin Zhang, Jingxiao Liu, Fei Xiong, Xuping Zhang, Xiaohong Chen, Zhewen Ding, Yunyin Zheng, Feng Wang, Mengmeng Chen
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/5/1694