Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Lilong Ma"'
Publikováno v:
Sensors, Vol 22, Iss 4, p 1670 (2022)
The key point on analyzing the data stream measured by fiber optic distributed acoustic sensing (DAS) is signal activity detection separating measured signals from environmental noise. The inability to calculate the threshold for signal activity dete
Externí odkaz:
https://doaj.org/article/38b500351a2a46609b6672c97ebc1bef
Publikováno v:
Applied Sciences, Vol 8, Iss 10, p 1899 (2018)
An improved phase-sensitive optical time-domain reflectometry (φ-OTDR) system with sub-meter spatial resolution is demonstrated. Two Michelson interferometers (MIs) with different path length differences are used in the proposed system. One is 10 m,
Externí odkaz:
https://doaj.org/article/d42a297c26f64b35a2bc4c1dbf0a1a8e
Publikováno v:
Distributed Acoustic Sensing in Geophysics. :57-64
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96d85c56596ec4d4f58f277ebafe9aec
https://doi.org/10.1002/9781119521808.ch4
https://doi.org/10.1002/9781119521808.ch4
Autor:
Dimin Deng, Tuanwei Xu, Hanyu Zhang, Chunliang Yu, Lilong Ma, Kai Cao, Yinghao Jiang, Fang Li, Shiguo Wu
Publikováno v:
Advanced Sensor Systems and Applications XII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cce846dc4b78d35c3f9282a33e12b57d
https://doi.org/10.1117/12.2647191
https://doi.org/10.1117/12.2647191
Autor:
Jiang Yinghao, Tuanwei Xu, Lilong Ma, Kai Cao, Yaning Xie, Jing Zhang, Dimin Deng, Yuliang Liu
Publikováno v:
Advanced Sensor Systems and Applications XII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df0bfdbfb179c0496c1bc61ab1b9fba0
https://doi.org/10.1117/12.2642254
https://doi.org/10.1117/12.2642254
Publikováno v:
IEEE Transactions on Vehicular Technology. 69:1363-1374
This paper presents a vehicle detection and classification system using distributed fiber-optic acoustic sensing (DAS) technology and describes a comprehensive classification method including signal processing and feature extraction. This sensing dev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a22537d31b653e2a18fe339df5e0974
https://doi.org/10.1109/tvt.2019.2962334
https://doi.org/10.1109/tvt.2019.2962334
Publikováno v:
Optics Express. 31:6649
We propose a broadband chirped-pulse conversion algorithm (BCPCA) to convert a finite-step scanning probe pulse into an equivalent broadband chirped probe pulse by convolving a chirp factor on the received signal in coherent phase-sensitive optical t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fccc212692c924e7bf7e036d5cbec9fe
https://doi.org/10.1364/oe.482791
https://doi.org/10.1364/oe.482791
Publikováno v:
Optical Engineering. 60
High-resolution submarine seismic survey techniques have become necessary in many actual geological and geophysical investigations. A new type of mini-distributed acoustic sensing (DAS) module is developed for working at the bottom of the sea with se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb59ae5019d5032b250f990cde1e361e
https://doi.org/10.1117/1.oe.60.3.034106
https://doi.org/10.1117/1.oe.60.3.034106
Publikováno v:
Optics Frontiers Online 2020: Distributed Optical Fiber Sensing Technology and Applications.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a144e483198ed1c228e47ecc3359235
https://doi.org/10.1117/12.2585437
https://doi.org/10.1117/12.2585437