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Geometrical considerations of spaceborne SAR surveys

Rodriguez-Cassola, Marc and Prats-Iraola, Pau and Scheiber, Rolf and Moreira, Alberto (2014) Geometrical considerations of spaceborne SAR surveys. In: Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR. VDE Verlag GmbH. European Conference on Synthetic Aperture Radar (EUSAR), 2014-06-03 - 2014-06-05, Aachen, Germany.

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Abstract

In this paper, the conventional approximation of stationary locally range-dependent straight orbits for LEO spaceborne SAR surveys is analysed. This approximation breaks down in demanding scenarios, e.g., high-resolution, squinted, or bistatic SAR, which are likely to play an important role in future spaceborne SAR missions. The dependencies of the image formation parameters with respect to topography and squint are analysed. Further, an exemplary analysis of the expected variations along the orbit, i.e., azimuth variance, is presented. To complete the analysis, the impact of the intrapulse motion of the satellite in squinted geometries is considered. The understanding of the residual geometric components including the parameters having an impact on them is a first step to the development of efficient SAR image formation schemes for future challenging spaceborne SAR missions.

Item URL in elib:https://elib.dlr.de/92007/
Document Type:Conference or Workshop Item (Poster)
Title:Geometrical considerations of spaceborne SAR surveys
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Rodriguez-Cassola, MarcUNSPECIFIEDUNSPECIFIED
Prats-Iraola, PauUNSPECIFIEDUNSPECIFIED
Scheiber, RolfUNSPECIFIEDUNSPECIFIED
Moreira, AlbertoUNSPECIFIEDUNSPECIFIED
Date:June 2014
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Publisher:VDE Verlag GmbH
Status:Published
Keywords:SAR, Spaceborne SAR processing
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Aachen, Germany
Event Type:international Conference
Event Dates:2014-06-03 - 2014-06-05
Organizer:VDE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Flugzeug-SAR
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > SAR Technology
Deposited By: Rodriguez Cassola, Marc
Deposited On:17 Nov 2014 07:59
Last Modified:31 Jul 2019 19:49

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