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E-SAR Upgrade to Stepped-Frequency Mode: System Description and Data Processing Approach

Scheiber, Rolf and Barbosa, Felipe and Nottensteiner, Anton and Horn, Ralf (2006) E-SAR Upgrade to Stepped-Frequency Mode: System Description and Data Processing Approach. In: Proceedings of European Conference on Synthetic Aperture Radar (EUSAR), p. 4. VDE Verlag GmbH, Berlin, Offenburg. European Conference on Synthetic Aperture Radar (EUSAR), 2006-5-16 - 2006-5-18, Dresden, Germany. ISBN 3-8007-2960-1.

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A common way to enhance the range resolution of imaging radars is to adopt stepped frequency waveforms. This paper discusses in detail stepped-frequency processing possibilities on raw and processed data level, focussing on the compensation steps required to obtain high quality results. At the same time, software changes to an established SAR processor are kept at a minimum. The paper starts with a description of associated hardware extensions performed to the front-end of the E-SAR system of DLR to accommodate the stepped frequency mode in X-band. Two alternating channels, each of 100 MHz bandwidth have been implemented, which lead to a best case range resolution of 80cm corresponding to an improvement of up to 80% compared to the standard imaging mode. The performance of the complete system (including hardware and processing concept) is investigated using real data acquired with different spectral overlap between the sub-bands.

Document Type:Conference or Workshop Item (Paper, Poster)
Title:E-SAR Upgrade to Stepped-Frequency Mode: System Description and Data Processing Approach
AuthorsInstitution or Email of Authors
Barbosa, FelipeUNSPECIFIED
Nottensteiner, AntonUNSPECIFIED
Date:May 2006
Journal or Publication Title:Proceedings of European Conference on Synthetic Aperture Radar (EUSAR)
Refereed publication:No
In ISI Web of Science:No
Page Range:p. 4
Publisher:VDE Verlag GmbH, Berlin, Offenburg
Keywords:stepped-frequency SAR, spectrum reconstruction, split spectrum
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Dresden, Germany
Event Type:international Conference
Event Dates:2006-5-16 - 2006-5-18
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 Flugzeug-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Microwaves and Radar Institute > SAR Technology
Deposited By: Dr.-Ing. Rolf Scheiber
Deposited On:01 Jun 2006
Last Modified:12 Dec 2013 20:19

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