中文版 | English
Title

Ultra-low sampling resolution technique for heterodyne phase-OTDR based distributed acoustic sensing

Author
Corresponding AuthorShao, Liyang
Publication Years
2022-07-15
DOI
Source Title
ISSN
0146-9592
EISSN
1539-4794
Volume47Issue:14Pages:3379-3382
Abstract
Phase-sensitive optical time-domain reflectometry (Phi-OTDR) based on heterodyne detection is widely used for its simple structure and high signal-to-noise ratio (SNR). However, the large amount of raw data of Phi-OTDR places a heavy burden on the storage device and also limits the transferability of the data. In this Letter, we propose an ultra-low sampling resolution technique to solve the data storage problem in heterodyne Phi-OTDR. Experimental results show that the optical phase variations induced by external vibrations can be successfully demodulated from the 1-bit-resolution raw data, and a vibration SNR of 58.03 dB is achieved. In addition, this work also reveals that a data acquisition device with extremely low sampling resolution is sufficient for heterodyne Phi-OTDR, signifying that the cost of the system can be further decreased. (C) 2022 Optica Publishing Group
URL[Source Record]
Indexed By
SCI ; EI
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
Department of Natural Resources of Guangdong Province[22] ; Guangdong Science and Technology Department[2021A0505080002]
WOS Research Area
Optics
WOS Subject
Optics
WOS Accession No
WOS:000826474100001
Publisher
EI Accession Number
20222912385364
EI Keywords
Data acquisition ; Optical heterodyning ; Signal to noise ratio ; Time domain analysis ; Virtual storage
ESI Classification Code
Information Theory and Signal Processing:716.1 ; Data Storage, Equipment and Techniques:722.1 ; Data Processing and Image Processing:723.2 ; Mathematics:921
ESI Research Field
PHYSICS
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:1
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/359456
DepartmentDepartment of Electrical and Electronic Engineering
Affiliation
1.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
2.Univ Macau, State Key Lab Analog & Mixed Signal VLSI, Taipa 999078, Macau, Peoples R China
3.Peng Cheng Lab, Shenzhen 518005, Peoples R China
4.Shenzhen Inst Informat Technol, Dept Microelect, Shenzhen 518172, Peoples R China
5.Nanjing Univ, Coll Engn & Appl Sci, Nanjing 210023, Peoples R China
First Author AffilicationDepartment of Electrical and Electronic Engineering
Corresponding Author AffilicationDepartment of Electrical and Electronic Engineering
First Author's First AffilicationDepartment of Electrical and Electronic Engineering
Recommended Citation
GB/T 7714
Yu, Fei-Hong,Liu, Shuaiqi,Shao, Liyang,et al. Ultra-low sampling resolution technique for heterodyne phase-OTDR based distributed acoustic sensing[J]. OPTICS LETTERS,2022,47(14):3379-3382.
APA
Yu, Fei-Hong.,Liu, Shuaiqi.,Shao, Liyang.,Xu, Weijie.,Xiao, Dongrui.,...&Shum, Perry Ping.(2022).Ultra-low sampling resolution technique for heterodyne phase-OTDR based distributed acoustic sensing.OPTICS LETTERS,47(14),3379-3382.
MLA
Yu, Fei-Hong,et al."Ultra-low sampling resolution technique for heterodyne phase-OTDR based distributed acoustic sensing".OPTICS LETTERS 47.14(2022):3379-3382.
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