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Proceedings Paper

Output-only modal analysis approach for time-unsynchronization signals in wireless sensor network
Author(s): Jae-Hyung Park; Jeong-Tae Kim; Won-Bae Na; Jinho Woo
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Paper Abstract

In this study, an output-only modal analysis approach for wireless sensor nodes is proposed on the basis of assumption that a target structure is a linear system. In order to achieve the objective, the following approaches are implemented. Firstly, an output-only modal analysis method is selected for the wireless sensor networks. Secondly, the effect of time unsynchronization on the modal analysis method is mathematically derived. Thirdly, a new modal analysis approach using complex mode-shapes is proposed to extract modal parameters from unsynchronized signals. Finally, the proposed approach is evaluated by numerical tests and experimental tests.

Paper Details

Date Published: 8 April 2009
PDF: 12 pages
Proc. SPIE 7295, Health Monitoring of Structural and Biological Systems 2009, 72952B (8 April 2009); doi: 10.1117/12.816264
Show Author Affiliations
Jae-Hyung Park, Pukyong National Univ. (Korea, Republic of)
Jeong-Tae Kim, Pukyong National Univ. (Korea, Republic of)
Won-Bae Na, Pukyong National Univ. (Korea, Republic of)
Jinho Woo, Pukyong National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 7295:
Health Monitoring of Structural and Biological Systems 2009
Tribikram Kundu, Editor(s)

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