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Sentinel-1 Radar Interferometry Applications

De Zan, Francesco and Monti Guarnieri, Andrea and Rocca, Fabio and Tebaldini, Stefano (2008) Sentinel-1 Radar Interferometry Applications. In: Proceeding of the European Conference on Synthetic Aperture Radar (EUSAR), p. 4. European Conference on Synthetic Aperture Radar (EUSAR), 2008-06-03 - 2008-06-05, Friedrichshafen, Germany.

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The short revisit time in the ERS Tandem experiment shows the data quality reachable when the temporal coherence is high. Sentinel 1 will have a revisit time of 12 days. Using the 3 days repeat data from the ice phase of ERS1, we evaluated the improvements for distributed scatterers interferometry. Slow ground motion, visible in many successive images, allows the estimation of the subsidence rate from the interferogram stacks and not only from Persistent Scatterers. Interferograms at multiple spans can be optimally combined. The dispersion of the subsidence rate estimate obtained in one year using interferogram stacks compares favourably to a PS, if the number of pixels used is greater than say 100. We compare the Cramér Rao bound for the subsidence estimates for a Markov model of the temporal decorrelation to an approximated optimal linear estimate found from the covariances of the interferograms at different spans. The unbiased subsidence rate estimates are consistent

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Sentinel-1 Radar Interferometry Applications
AuthorsInstitution or Email of Authors
De Zan, FrancescoUNSPECIFIED
Monti Guarnieri, AndreaPOLIMI
Rocca, FabioPOLIMI
Tebaldini, StefanoPOLIMI
Date:June 2008
Journal or Publication Title:Proceeding of the European Conference on Synthetic Aperture Radar (EUSAR)
Refereed publication:No
In ISI Web of Science:No
Page Range:p. 4
Keywords:SAR Interferometry, temporal decorrelation, permanent scatterers
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Friedrichshafen, Germany
Event Type:international Conference
Event Dates:2008-06-03 - 2008-06-05
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Prosmart, Smart-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute
Deposited By: Francesco De Zan
Deposited On:28 Jul 2008
Last Modified:12 Dec 2013 20:32

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