Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/61346
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Electronic and Information Engineering | en_US |
dc.contributor | Department of Electrical Engineering | en_US |
dc.creator | Azad, AK | en_US |
dc.creator | Wang, L | en_US |
dc.creator | Guo, N | en_US |
dc.creator | Tam, HY | en_US |
dc.creator | Lu, C | en_US |
dc.date.accessioned | 2016-12-19T08:55:34Z | - |
dc.date.available | 2016-12-19T08:55:34Z | - |
dc.identifier.uri | http://hdl.handle.net/10397/61346 | - |
dc.language.iso | en | en_US |
dc.publisher | Optical Society of America | en_US |
dc.rights | ©2016 Optical Society of America | en_US |
dc.rights | © 2016 Optica Publishing Group. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved. | en_US |
dc.rights | The following publication Azad, A. K., Wang, L., Guo, N., Tam, H. Y., & Lu, C. (2016). Signal processing using artificial neural network for BOTDA sensor system. Optics express, 24(6), 6769-6782 is available at https://doi.org/10.1364/OE.24.006769. | en_US |
dc.title | Signal processing using artificial neural network for BOTDA sensor system | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 6769 | en_US |
dc.identifier.epage | 6782 | en_US |
dc.identifier.volume | 24 | en_US |
dc.identifier.issue | 6 | en_US |
dc.identifier.doi | 10.1364/OE.24.006769 | en_US |
dcterms.abstract | We experimentally demonstrate the use of artificial neural network (ANN) to process sensing signals obtained from Brillouin optical time domain analyzer (BOTDA). The distributed temperature information is extracted directly from the local Brillouin gain spectra (BGSs) along the fiber under test without the process of determination of Brillouin frequency shift (BFS) and hence conversion from BFS to temperature. Unlike our previous work for short sensing distance where ANN is trained by measured BGSs, here we employ ideal BGSs with different linewidths to train the ANN in order to take the linewidth variation due to different conditions from the training and testing phases into account, making it feasible for long distance sensing. Moreover, the performance of ANN is compared with other two techniques, Lorentzian curve fitting and cross-correlation method, and our results show that ANN has higher accuracy and larger tolerance to measurement error, especially at large frequency scanning step. We also show that the temperature extraction from BOTDA measurements employing ANN is significantly faster than the other two approaches. Hence ANN can be an excellent alternative tool to process BGSs measured by BOTDA and obtain temperature distribution along the fiber, especially when large frequency scanning step is adopted to significantly reduce the measurement time but without sacrifice of sensing accuracy. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Optics express, 21 Mar. 2016, v. 24, no. 6, p. 6769-6782 | en_US |
dcterms.isPartOf | Optics express | en_US |
dcterms.issued | 2016-03-21 | - |
dc.identifier.isi | WOS:000373395700125 | - |
dc.identifier.scopus | 2-s2.0-84964036754 | - |
dc.identifier.pmid | 27136863 | - |
dc.identifier.eissn | 1094-4087 | en_US |
dc.identifier.rosgroupid | 2015003096 | - |
dc.description.ros | 2015-2016 > Academic research: refereed > Publication in refereed journal | en_US |
dc.description.oa | Version of Record | en_US |
dc.identifier.FolderNumber | EE-0699 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | The Hong Kong Polytechnic University Postdoctoral Fellowships Scheme 2015; National Natural Science Foundation of China (NSFC) | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 6636935 | - |
Appears in Collections: | Journal/Magazine Article |
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Azad_Signal_Processing_Using.pdf | 2.36 MB | Adobe PDF | View/Open |
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