Performance Enhancement of Noisy Distributed Acoustic Sensor Using Normalized Differential Method

被引：0

作者：

Ashry, Islam ^{[1
]}

Mao, Yuan ^{[1
]}

Alias, Mohd Sharizal ^{[1
]}

Ng, Tien Khee ^{[1
]}

Hveding, Frode ^{[2
]}

Arsalan, Muhammad ^{[2
]}

Ooi, Boon S. ^{[1
]}

机构：

[1] King Abdullah Univ Sci & Technol KAUST, Comp Elect & Math Sci & Engn, 239556900 Thuwal, Saudi Arabia

[2] EXPEC Adv Res Ctr, Dhahran 34464, Saudi Arabia

来源：

NOVEL OPTICAL SYSTEMS, METHODS, AND APPLICATIONS XXII | 2019年 / 11105卷

关键词：

Acoustic sensors; optical fiber sensors; optical fibers; optical sensors; RATIO;

D O I：

10.1117/12.2523757

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally report a normalized differential signal processing technique to improve the signal-to-noise ratio (SNR) of a fiber optic distributed acoustic sensor (DAS), in the time-domain. The introduced method is calibrated through comparing it with the typical differential method when using a noisy DAS system that includes a relatively wide linewidth laser. For this system, the normalized differential method allows measuring the vibration locations, produced by a piezoelectric transducer (PZT) cylinder, with enhanced SNR.

引用

页数：5

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