TY - GEN
T1 - Dual Carriageway Traffic Monitoring using Superlets based Signal Processing for Distributed Acoustic Sensing
AU - Zhang, Jingming
AU - Yan, Yaxi
AU - Lau, Alan Pak Tao
AU - Shao, Liyang
AU - Yu, Changyuan
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024/11
Y1 - 2024/11
N2 - Recently, using distributed acoustic sensing (DAS) for traffic monitoring has attracted great research attention. In urban environments, the prevalent noise interference and the presence of multi-lane roads limits the signal to noise ratio (SNR) of traffic signals. Moreover, since optical fiber cable is deployed on one side of the road, DAS data are dominantly composed of vehicle signals from the near side of the cable. It is difficult to effectively detect the vehicles moving in the opposite direction. This paper presents a signal processing method based on superlets to largely improve the SNR of traffic signals. Field trial test in the Cross Harbour Tunnel of Hong Kong shows that with the significantly improved SNR, the detection of vehicles travelling along the opposite direction becomes possible, validating the potential of applying DAS for monitoring dual carriageway multi-lane roads.
AB - Recently, using distributed acoustic sensing (DAS) for traffic monitoring has attracted great research attention. In urban environments, the prevalent noise interference and the presence of multi-lane roads limits the signal to noise ratio (SNR) of traffic signals. Moreover, since optical fiber cable is deployed on one side of the road, DAS data are dominantly composed of vehicle signals from the near side of the cable. It is difficult to effectively detect the vehicles moving in the opposite direction. This paper presents a signal processing method based on superlets to largely improve the SNR of traffic signals. Field trial test in the Cross Harbour Tunnel of Hong Kong shows that with the significantly improved SNR, the detection of vehicles travelling along the opposite direction becomes possible, validating the potential of applying DAS for monitoring dual carriageway multi-lane roads.
KW - distributed acoustic sensing
KW - superlets
KW - traffic monitoring
UR - https://www.scopus.com/pages/publications/85214980188
U2 - 10.1109/ACP/IPOC63121.2024.10809369
DO - 10.1109/ACP/IPOC63121.2024.10809369
M3 - Conference article published in proceeding or book
AN - SCOPUS:85214980188
T3 - Asia Communications and Photonics Conference, ACP
SP - 1
EP - 3
BT - 2024 Asia Communications and Photonics Conference, ACP 2024 and International Conference on Information Photonics and Optical Communications, IPOC 2024
PB - Optica Publishing Group (formerly OSA)
T2 - 2024 Asia Communications and Photonics Conference, ACP 2024 and International Conference on Information Photonics and Optical Communications, IPOC 2024
Y2 - 2 November 2024 through 5 November 2024
ER -