3D Monitoring of Buildings Using TerraSAR-X InSAR, DInSAR and PolSAR Capacities
| Autor: | Flora Weissgerber, Nicolas Trouve, Elise Colin-Koeniguer, Jean-Marie Nicolas |
|---|---|
| Přispěvatelé: | School of Geosciences [Edinburgh], University of Edinburgh, ONERA - The French Aerospace Lab [Palaiseau], ONERA-Université Paris Saclay (COmUE), Télécom ParisTech |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
010504 meteorology & atmospheric sciences
scatterers’ orientation 0211 other engineering and technologies Polarimetry DiNsar 02 engineering and technology URBANISME 01 natural sciences law.invention Deformation monitoring InSAR law Interferometric synthetic aperture radar Radar lcsh:Science 021101 geological & geomatics engineering 0105 earth and related environmental sciences Remote sensing SCATTERERS' ORIENTATION Mode (statistics) PolSAR Geodesy POLARIMETRIE RADAR RADAR [PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph] Interferometry [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism DEFORMATION MONITORING URBAN AREAS General Earth and Planetary Sciences A priori and a posteriori lcsh:Q Scale (map) Geology SAR |
| Zdroj: | Remote Sensing Remote Sensing, MDPI, 2017, 9 (10), ⟨10.3390/rs9101010⟩ Remote Sensing, Vol 9, Iss 10, p 1010 (2017) Volume 9 Issue 10 Pages: 1010 |
| ISSN: | 2072-4292 |
| DOI: | 10.3390/rs9101010⟩ |
| Popis: | International audience; The rapid expansion of cities increases the need of urban remote sensing for a large scale monitoring. This paper provides greater understanding of how TerraSAR-X (TSX) high-resolution abilities enable to reach the spatial precision required to monitor individual buildings, through the use of a 4 year temporal stack of 100 images over Paris (France). Three different SAR modes are investigated for this purpose. First a method involving a whole time-series is proposed to measure realistic heights of buildings. Then, we show that the small wavelength of TSX makes the interferometric products very sensitive to the ordinary building-deformation, and that daily deformation can be measured over the entire building with a centimetric accuracy, and without any a priori on the deformation evolution, even when neglecting the impact of the atmosphere. Deformations up to 4 cm were estimated for the Eiffel Tower and up to 1 cm for other lower buildings. These deformations were analyzed and validated with weather and in situ local data. Finally, four TSX polarimetric images were used to investigate geometric and dielectric properties of buildings under the deterministic framework. Despite of the resolution loss of this mode, the possibility to estimate the structural elements of a building orientations and their relative complexity in the spatial organization are demonstrated. |
| Databáze: | OpenAIRE |
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