Journal
NDT & E INTERNATIONAL
Volume 41, Issue 4, Pages 258-264Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ndteint.2007.11.002
Keywords
radar; remote sensing; interferometry; dynamic monitoring; accelerometer; structural test
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Interferometric radar has been recently proposed as a measurement instrument for dynamic testing/monitoring of large structures, such as bridges, towers, buildings, and dams, which is currently performed by networks of accelerometers. In this paper, the authors report a direct comparison between the two measurement techniques (radar interferometer vs. accelerometers) both employed during a field test on a bridge. As different quantities, displacement and acceleration are measured by the two techniques, a preliminary discussion about signals and noise has been necessary. Finally, the experimental results are critically discussed. (c) 2007 Elsevier Ltd. All rights reserved.
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