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L. Chang, R. Dollevoet, R.F. Hanssen, "Satellite Monitoring of Railway Infrastructure", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 94, 2014. doi:10.4203/ccp.104.94

Keywords: InSAR, railway infrastructure.

Summary

This paper presents the use of dedicated satellite radar observations to aid in railway monitoring. These radar measurements are able to detect changes in the geometry of the tracks, with up to a millimeter precision, with a bi-weekly measurement update, and a high spatial resolution by using interferometric synthetic aperture radar (InSAR) techniques. When deformation of the infrastructure is mainly limited to the vertical and the horizontal transversal direction, it is possible to derive the deformation vector in three dimensions. Therefore we developed algorithms to tune this technology to the case of railways, in order to allow for routine and near-real-time monitoring. Special emphasis is on the spatio-temporal changes in geometry. Our methods are demonstrated on a segment of the Betuweroute, a freight railway between the Rotterdam harbor in the Netherlands towards Germany, eastwards, by using 248 satellite images from the TerraSAR-X satellite acquired between 2009 and 2013, with a bi-weekly interval.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 104 PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 94 Satellite Monitoring of Railway Infrastructure L. Chang, R. Dollevoet and R.F. Hanssen Delft University of Technology, the Netherlands doi:10.4203/ccp.104.94 purchase the full-text of this paper Full Bibliographic Reference for this paper L. Chang, R. Dollevoet, R.F. Hanssen, "Satellite Monitoring of Railway Infrastructure", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 94, 2014. doi:10.4203/ccp.104.94 Keywords: InSAR, railway infrastructure. Summary This paper presents the use of dedicated satellite radar observations to aid in railway monitoring. These radar measurements are able to detect changes in the geometry of the tracks, with up to a millimeter precision, with a bi-weekly measurement update, and a high spatial resolution by using interferometric synthetic aperture radar (InSAR) techniques. When deformation of the infrastructure is mainly limited to the vertical and the horizontal transversal direction, it is possible to derive the deformation vector in three dimensions. Therefore we developed algorithms to tune this technology to the case of railways, in order to allow for routine and near-real-time monitoring. Special emphasis is on the spatio-temporal changes in geometry. Our methods are demonstrated on a segment of the Betuweroute, a freight railway between the Rotterdam harbor in the Netherlands towards Germany, eastwards, by using 248 satellite images from the TerraSAR-X satellite acquired between 2009 and 2013, with a bi-weekly interval. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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