Technical aspects in SAR image formation and interferometric processing of companion satellite SAR missions
Pau Prats-Iraola (Deutsches Zentrum für Luft- und Raumfahrt (DLR))
Marc Cassola (Deutsches Zentrum für Luft- und Raumfahrt (DLR))
Francisco Dekker (TU Delft - Mathematical Geodesy and Positioning)
Mariantonietta Zonno (Deutsches Zentrum für Luft- und Raumfahrt (DLR))
Nestor Yague-Martinez (Deutsches Zentrum für Luft- und Raumfahrt (DLR))
Matteo Nannini (Deutsches Zentrum für Luft- und Raumfahrt (DLR))
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Abstract
The contribution focuses on the technical aspects related to the focusing and interferometric processing of bistatic data acquired by companion satellite (CS) SAR missions. In particular, the processing aspects related to the large along-track baseline configuration will be addressed, for the processing needs to properly consider a potential high squint angle. The technical challenges encompass synchronization, image formation and coregistration. On the other hand, the availability of a large squint angle has some advantages in terms of the sensitivity to the north-south component of the deformation for interferometric applications. The theoretical derivations are complemented with point-target simulations and Monte-Carlo simulations.
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