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AuthorAbdaoui, Abderrazak
AuthorAhmed, Mohamed H.
AuthorEl Fouly, Tarek M.
Available date2021-07-05T10:58:32Z
Publication Date2016
Publication NameIEEE Wireless Communications and Networking Conference, WCNC
ResourceScopus
URIhttp://dx.doi.org/10.1109/WCNC.2016.7564859
URIhttp://hdl.handle.net/10576/21103
AbstractFor structural health monitoring (SHM), mode shape calculation is an important task that needs to be performed accurately and reliably. The use of wireless sensor networks (WSNs) for SHM is a very effective and a promising solution. However, WSNs experience synchronization errors among the sensor nodes, which can affect the accuracy of the mode shape calculation. In this paper, we study the impact of time synchronization error (TSE) on the mode shape calculation in a semi-local manner using frequency domain decomposition (FDD) implemented in a semi-local manner. In order to decrease the size of the transmitted data by the sensor nodes and reduce the processing load and needed storage capacity on the central unit, we adopt a semi-local processing approach where each node partially processes the measured data. Then, sensor nodes send the partially-processed data to a central unit for further processing and mode shape calculation. Numerical results prove that the time synchronization error has a significant impact on the accuracy of the mode shape calculation. Furthermore, results show that semi-local processing is more sensitive to TSE compared with centralized processing. 2016 IEEE.
Languageen
PublisherInstitute of Electrical and Electronics Engineers Inc.
Subjectfrequency domain decomposition
Mode shape calculation
structural health monitoring
time synchronization error
TitleImpact of time synchronization error on the mode-shape calculation in wireless sensor networks for structural health monitoring
TypeConference Paper
Volume Number2016-September
dc.accessType Abstract Only


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