Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
Journal Home About Issues in Progress Current Issue All Issues Early Posting Feature Issues

Step-adaptive accelerated demodulation algorithm for LFM-pulse-based distributed acoustic sensing

Zhongquan Chen, Junfeng Jiang, Kun Liu, Mingjiang Zhang, Shuang Wang, Zhengyang Ding, and Tiegen Liu

Not Accessible

Your library or personal account may give you access

Abstract

We propose a novel, to our knowledge, step-adaptive cross-correlation algorithm tailored for distributed acoustic sensing systems based on linear frequency modulation pulses, aiming for rapid demodulation. This algorithm adjusts its step length through an adaptive “successive refinement” search strategy, which greatly improves computational efficiency by reducing the number of cross-correlation computations. Experimental results have shown that the demodulation time can be reduced by approximately 15 times compared to the conventional method, while maintaining the same demodulation result.

© 2024 Optica Publishing Group

Full Article  |  PDF Article
More Like This
GPU-based fast processing for a distributed acoustic sensor using an LFM pulse

Shuanghao Wang, Junfeng Jiang, Shuang Wang, Zhe Ma, Tianhua Xu, Zhenyang Ding, Zhankun Lv, and Tiegen Liu
Appl. Opt. 59(35) 11098-11103 (2020)

Phase demodulation method based on a dual-identical-chirped-pulse and weak fiber Bragg gratings for quasi-distributed acoustic sensing

Guanhua Liang, Junfeng Jiang, Kun Liu, Shuang Wang, Tianhua Xu, Wenjie Chen, Zhe Ma, Zhenyang Ding, Xuezhi Zhang, Yongning Zhang, and Tiegen Liu
Photon. Res. 8(7) 1093-1099 (2020)

Strain measurement with adaptive local feature extraction method based on special fiber OFDR system

Yuejuan Lv, XiangPeng Xiao, Hao Li, Ke Ai, Zhijun Yan, and Qizhen Sun
Opt. Express 32(4) 5043-5055 (2024)

View More...

Data availability

The dataset underpinning this study’s findings is not hosted in a public repository, as no suitable platform exists in this field. Interested researchers may obtain the data by making a reasonable request to the authors.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters
Select Topics Cancel
Top
       
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.
Privacy | Terms of Use