7 March 2003 Elevation information derived from ground-based SAR data
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A ground-based Synthetic Aperture Radar (GB-SAR) interferometric technique is proposed for the topographic mapping. It is based on a coherent continuous-wave step-frequency radar moved along a horizontal rail to generate the synthetic aperture. Antennas are placed on a mechanical arm whose rotation enables to create an interferometric baseline. The synthetic aperture is 3 m long and the average radar-to-scene distance is 1200 m. Multifrequency measurements are carried out at Schwaz, Austria, using different baselines. The interferometrically derived topography is compared with an existing Digital Elevation Model (DEM) of the area.
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Giovanni Nico, Davide Leva, G. Antonello, Dario Tarchi, "Elevation information derived from ground-based SAR data", Proc. SPIE 4883, SAR Image Analysis, Modeling, and Techniques V, (7 March 2003); doi: 10.1117/12.463241; https://doi.org/10.1117/12.463241


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