Distributed acoustic sensing for 2D and 3D acoustic source localization

被引：72

作者：

Liang Jiajing ^{[1
,2
]}

Wang Zhaoyong ^{[1
]}

Lu Bin ^{[1
]}

Wang Xiao ^{[1
,2
]}

Li Luchuan ^{[1
,3
]}

Ye Qing ^{[1
]}

Qu Ronghui ^{[1
]}

Cai Haiwen ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Space Laser Commun & Detect Technol, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

[3] Shanghai Univ, Key Lab Specialty Fiber Opt & Opt Access Network, Joint Int Res Lab Specialty Fiber Opt & Adv Commu, Shanghai Inst Adv Commun & Data Sci, Shanghai 200444, Peoples R China

来源：

OPTICS LETTERS | 2019年 / 44卷 / 07期

基金：

上海市自然科学基金; 中国国家自然科学基金; 国家重点研发计划;

关键词：

TIME DOMAIN REFLECTOMETER; SENSOR; FREQUENCY;

D O I：

10.1364/OL.44.001690

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Distributed acoustic sensing (DAS) technology based on Rayleigh backscattering is experiencing a rapid development and leading itself into wider applications because of the unique capability of measuring sound and vibrations at all points along the sensing fiber. However, most implementations of DAS provide the position of detected sources as a function of distance within the one-dimensional axial space along the sensing fiber. A DAS system with the capability of two-dimensional (2D) and three-dimensional (3D) acoustic source localization in air is demonstrated that uses array signal processing to deal with the spatial correlation of the information measured by optical fiber. Preliminary work has demonstrated 2D acoustic source localization for multi-targets with a narrowband signal source of the same frequency and 3D position for a moving narrowband acoustic source. The results establish a new method which opens up new areas of applications of DAS such as location and identification for static, dynamic, and multiple targets in air or water. (C) 2019 Optical Society of America

引用

页码：1690 / 1693

页数：4

共 35 条

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