Performance enhancement of noisy distributed acoustic sensor using normalized differential method

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Type
Conference Paper
Authors
Ashry, Islam cc
Mao, Yuan
Alias, Mohd Sharizal cc
Ng, Tien Khee cc
Hveding, Frode
Arsalan, Muhammad
Ooi, Boon S. cc
KAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Photonics Laboratory
KAUST Grant Number
BAS/1/1614-01-01
GEN/1/6607-01-01
KCR/1/2081-01-01
Date
2019-09-09
Permanent link to this record
http://hdl.handle.net/10754/660615

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Abstract
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.
Citation
Ashry, I., Mao, Y., Alias, M. S., Ng, T. K., Hveding, F., Arsalan, M., & Ooi, B. S. (2019). Performance enhancement of noisy distributed acoustic sensor using normalized differential method. Novel Optical Systems, Methods, and Applications XXII. doi:10.1117/12.2523757
Sponsors
The authors gratefully acknowledge the financial support provided to this work by the Saudi Aramco under Grant No. RGC/3/3138-01. This work is partially supported by King Abdullah University of Science and Technology (KAUST) baseline funding (BAS/1/1614-01-01), KAUST equipment funding KCR/1/2081-01-01, and GEN/1/6607-01-01.
Publisher
SPIE-Intl Soc Optical Eng
Conference/Event name
22nd Annual Conference for Novel Optical Systems, Methods, and Applications 2019
DOI
10.1117/12.2523757
Additional Links
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11105/2523757/Performance-enhancement-of-noisy-distributed-acoustic-sensor-using-normalized-differential/10.1117/12.2523757.full
Collections
Conference Papers; Electrical Engineering Program; Photonics Laboratory; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division