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Autonomous time and phase calibration of spaceborne bistatic SAR systems

Rodriguez-Cassola, Marc and Prats-Iraola, Pau and López-Dekker, Paco and Reigber, Andreas and Krieger, Gerhard and Moreira, Alberto (2014) Autonomous time and phase calibration of spaceborne bistatic SAR systems. In: Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR. VDE Verlag GmbH. European Conference on Synthetic Aperture Radar (EUSAR), 2014-06-03 - 2014-06-5, Aachen, Germany.

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Abstract

Bistatic and multistatic SAR constellations offer increased performance at the expense of increased operational complexity. Due to geometric or cost constraints, multistatic SAR constellations might be forced to operate in a partially cooperative manner, i.e., without a direct synchronisation link. In demanding scenarios, like high-resolution bistatic SAR imaging or cross-platform SAR interferometry or tomography, the data need undergo a calibration step to compensate the lack of synchronisation between transmitter and receiver master clocks. Autonomous synchronisation, based on the inversion of the phase and positioning errors of the bistatic SAR images caused by the lack of synchronisation, is used to calibrate the time and phase references of the system with the sole help of the received radar data, which drastically reduces the requirements on the hardware of the system.

Item URL in elib:https://elib.dlr.de/92006/
Document Type:Conference or Workshop Item (Speech)
Title:Autonomous time and phase calibration of spaceborne bistatic SAR systems
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Rodriguez-Cassola, MarcUNSPECIFIEDUNSPECIFIED
Prats-Iraola, PauUNSPECIFIEDUNSPECIFIED
López-Dekker, PacoUNSPECIFIEDUNSPECIFIED
Reigber, AndreasUNSPECIFIEDUNSPECIFIED
Krieger, GerhardUNSPECIFIEDUNSPECIFIED
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, Bistatic 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 - 2014-06-5
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 > Radar Concepts
Microwaves and Radar Institute > SAR Technology
Deposited By: Rodriguez Cassola, Marc
Deposited On:17 Nov 2014 07:57
Last Modified:31 Jul 2019 19:49

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