Materials, Photonic Devices, and Sensors

Simultaneous and signal-to-noise ratio enhancement extraction of vibration location and frequency information in phase-sensitive optical time domain reflectometry distributed sensing system

[+] Author Affiliations
Huimin Yue, Bo Zhang, Yuxiang Wu, Biyu Zhao, Jianfeng Li, Zhonghua Ou, Yong Liu

University of Electronic Science and Technology of China, School of Optoelectronic Information, Chengdu 610054, China

Opt. Eng. 54(4), 047101 (Apr 07, 2015). doi:10.1117/1.OE.54.4.047101
History: Received January 1, 2015; Accepted March 17, 2015
Text Size: A A A

Abstract.  A one-dimensional Fourier transform of a Rayleigh backscattering traces matrix along the traces direction method has been proposed to simultaneously extract location and frequency information of vibration in the distributed vibration sensing system based on phase-sensitive optical time domain reflectometry. Meanwhile, the signal-to-noise ratio (SNR) of the proposed method also can be improved as the signals are processed in the frequency domain since in the frequency domain, noise is “slow change” compared with the vibration. Then, experiments on two-point vibrations have been done. An SNR of 9.5 dB was achieved, and the spatial resolution is also improved to 3.7 m with a 50 ns pulse width and 2.7 km long fiber owing to the improved SNR.

Figures in this Article
© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Huimin Yue ; Bo Zhang ; Yuxiang Wu ; Biyu Zhao ; Jianfeng Li, et al.
"Simultaneous and signal-to-noise ratio enhancement extraction of vibration location and frequency information in phase-sensitive optical time domain reflectometry distributed sensing system", Opt. Eng. 54(4), 047101 (Apr 07, 2015). ; http://dx.doi.org/10.1117/1.OE.54.4.047101


Tables

Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.