期刊
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
卷 58, 期 10, 页码 7141-7153出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TGRS.2020.2979961
关键词
Bridges; Monitoring; Inspection; Satellites; Synthetic aperture radar; Rivers; Spaceborne radar; Bridge; corner reflectors; interferometric synthetic aperture radar (InSAR); structural health monitoring (SHM); TerraSAR-X
类别
资金
- Engineering and Physical Sciences Research Council (EPSRC), U.K. [1636878]
- National Physical Laboratory
- Centre for Integrated Remote Sensing and Forecasting for Arctic Operations (CIRFA)
- Research Council of Norway (RCN) [237906]
- Laing O'Rourke
This article examines advances in interferometric synthetic aperture radar (InSAR) satellite measurement technologies to understand their relevance, utilization, and limitations for bridge monitoring. Waterloo Bridge is presented as a case study to explore how InSAR data sets can be combined with traditional measurement techniques including sensors installed on the bridge and automated total stations. A novel approach to InSAR bridge monitoring was adopted by the installation of physical reflectors at key points of structural interest on the bridge, in order to supplement the bridges own reflection characteristics and ensure that the InSAR measurements could be directly compared and combined with in situ measurements. The interpretation and integration of InSAR data sets with civil infrastructure data are more than a trivial task, and a discussion of uncertainty of measurement data is presented. Finally, a strategy for combining and interpreting varied data from multiple sources to provide useful insights into each of these methods is presented, outlining the practical applications of this data analysis to support wider monitoring strategies.
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