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Tomographic Imaging and Monitoring of Buildings With Very High Resolution SAR Data

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5 Author(s)
D. Reale ; Institute for the Electromagnetic Sensing of the Environment (IREA), National Research Council (CNR), Napoli, Italy ; G. Fornaro ; A. Pauciullo ; X. Zhu
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Layover is frequent in imaging and monitoring with synthetic aperture radar (SAR) areas characterized by a high density of scatterers with steep topography, e.g., in urban environment. Using medium-resolution SAR data tomographic techniques has been proven to be capable of separating multiple scatterers interfering (in layover) in the same pixel. With the advent of the new generation of high-resolution sensors, the layover effect on buildings becomes more evident. In this letter, we exploit the potential of the 4-D imaging applied to a set of TerraSAR-X spotlight acquisitions. Results show that the combination of high-resolution data and advanced coherent processing techniques can lead to impressive reconstruction and monitoring capabilities of the whole 3-D structure of buildings.

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IEEE Geoscience and Remote Sensing Letters  (Volume:8 ,  Issue: 4 )