TY - JOUR
T1 - Improved Perturbation Detection in Direct Detected φ-OTDR Systems using Matched Filtering
AU - Adeel, Muhammad
AU - Tejedor, Javier
AU - Macias-Guarasa, Javier
AU - Lu, Chao
N1 - Funding Information:
Manuscript received July 31, 2019; revised August 28, 2019; accepted September 4, 2019. Date of publication September 10, 2019; date of current version November 12, 2019. This work was supported in part by the Spanish Ministry of Economy and Competivity under Project TIN2016-75982-C2-1-R, and in part by the General Research Fund (GRF: PolyU 152658/16E, 152168/17E). (Corresponding author: Muhammad Adeel.) M. Adeel and C. Lu are with the Department of Electronic Engineering, Photonics Research Centre, The Hong Kong Polytechnic University (PolyU), Hong Kong (e-mail: [email protected]; [email protected]).
Publisher Copyright:
© 2019 IEEE.
PY - 2019/11/1
Y1 - 2019/11/1
N2 - Nuisance Alarm Rate (NAR) is critical in φ-OTDR perturbation detection systems. We present in this letter a novel matched filtering-based feature extractor which aims to noise reduction so that the detection system gets improved performance. This feature extractor requires a small number of data vectors to be acquired which is combined with a random forest-based machine learning strategy to significantly reduce the NAR. In addition, since the number of data vectors is small, this system can also be useful for time-sensitive detection applications.
AB - Nuisance Alarm Rate (NAR) is critical in φ-OTDR perturbation detection systems. We present in this letter a novel matched filtering-based feature extractor which aims to noise reduction so that the detection system gets improved performance. This feature extractor requires a small number of data vectors to be acquired which is combined with a random forest-based machine learning strategy to significantly reduce the NAR. In addition, since the number of data vectors is small, this system can also be useful for time-sensitive detection applications.
KW - Distributed acoustic sensing
KW - perturbation detection
KW - phase-OTDR
UR - http://www.scopus.com/inward/record.url?scp=85077686620&partnerID=8YFLogxK
U2 - 10.1109/LPT.2019.2940297
DO - 10.1109/LPT.2019.2940297
M3 - Journal article
AN - SCOPUS:85077686620
SN - 1041-1135
VL - 31
SP - 1689
EP - 1692
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 21
M1 - 8830461
ER -