High SNR Φ-OTDR with Multi-Transverse Modes Heterodyne Matched-Filtering Technology

High SNR Φ-OTDR with Multi-Transverse Modes Heterodyne Matched-Filtering Technology

Phase-sensitive optical time domain reflectometer (Φ-OTDR) has attracted attention in scientific research and industry because of its distributed dynamic linear response to external disturbances. However, the signal-to-noise ratio (SNR) of Φ-OTDR is still a limited factor by the weak Rayleigh Backsc...

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Bibliographic Details
Main Authors:	Yifan Liu, Junqi Yang, Bingyan Wu, Bin Lu, Luwei Shuai, Zhaoyong Wang, Lei Ye, Kang Ying, Qing Ye, Ronghui Qu, Haiwen Cai
Format:	Article
Language:	English
Published:	MDPI AG 2021-11-01
Series:	Sensors
Subjects:	Φ-OTDR few-mode fiber multi-transverse modes heterodyne matched-filtering technology high-SNR
Online Access:	https://www.mdpi.com/1424-8220/21/22/7460

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