Passive Acoustic Sensor Network Localization; Application to Structure geometry Monitoring

Vincent Rémy 1 Carmona Mikael 1 Olivier Michel 2 Jean-Louis Lacoume 3
1 CEA-LETI - Laboratoire d'Electronique et des Technologies de l'Information
2 GIPSA-CICS - CICS
GIPSA-DIS - Département Images et Signal
3 GIPSA-SIGMAPHY - SIGMAPHY
GIPSA-DIS - Département Images et Signal
Abstract : In this article, passive acoustic sensor network localization is presented and applied to geometry structure monitoring. The methodology relies on passive travel-time estimation, which is here defined as the retrieval of an inter-sensor propagation delay, using uncontrolled ambient sources in an homogeneous acoustic propagation medium. Our approach relates to passive linear systems identification through the use of codas correlations to form estimators. We provide practical performances of such estimators and propose two approaches for geometry monitoring, both illustrated in the case of a steel beam.
Keywords : Civil engineering SHM applications Sensor systems and networks Signal processing
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Communication dans un congrès
Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014
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Vincent Rémy, Carmona Mikael, Olivier Michel, Jean-Louis Lacoume. Passive Acoustic Sensor Network Localization; Application to Structure geometry Monitoring. Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014. 〈hal-01020339〉

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