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Processing Strategies for Global Interferometric TanDEM-X DEM Generation

Fritz, Thomas and Breit, Helko and Lachaise, Marie and Rossi, Cristian and Yague-Martinez, Nestor (2014) Processing Strategies for Global Interferometric TanDEM-X DEM Generation. In: Proceedings of EUSAR 2014, pp. 1-4. VDE. EUSAR 2014, 03. - 05. Juni 2014, Berlin. ISBN 978-3-8007-3607-2.

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Official URL: https://www.vde-verlag.de/proceedings-de/453607199.html


This paper summarizes the current status of the operational interferometric SAR (InSAR) processing of TanDEM-X data from three years of global acquisitions focusing on the methods implemented to provide raw DEM data which fulfills the high accuracy requirements of the final mosaicked TanDEM-X DEM. While most data is processed to DEMs which significantly exceed the performance requirements, the experience gained from processing far more than 300000 DEM scenes lead to optimizations in the processing chain to cope with data of extreme topography, low back-scatter, varying penetration depths, low interferometric coherence or temporal height changes. An important fact is that the SAR & InSAR processor uses the same initial approach for all incoming data and fully relies on the exploitation of the information in the SAR data itself without any external references, automatic quality control and re-processing with the support of other acquisitions triggered by feedback loops in case of quality issues. We present the detailed processing approach operationally used in bistatic SAR and InSAR processing to obtain an accurate DEM data set of globally homogenous high quality.

Item URL in elib:https://elib.dlr.de/93707/
Document Type:Conference or Workshop Item (Speech)
Title:Processing Strategies for Global Interferometric TanDEM-X DEM Generation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Fritz, Thomasthomas.fritz (at) dlr.deUNSPECIFIED
Breit, HelkoHelko.Breit (at) dlr.deUNSPECIFIED
Lachaise, MarieMarie.Lachaise (at) dlr.deUNSPECIFIED
Rossi, Cristiancristian.rossi (at) dlr.deUNSPECIFIED
Yague-Martinez, NestorNestor.Yague (at) dlr.deUNSPECIFIED
Date:June 2014
Journal or Publication Title:Proceedings of EUSAR 2014
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-4
EditorsEmailEditor's ORCID iD
Keywords:SAR, Interferometrie, DEM, Höhenmodelle, TanDEM-X, Radar
Event Title:EUSAR 2014
Event Location:Berlin
Event Type:international Conference
Event Dates:03. - 05. Juni 2014
Organizer:ITG ; VDE ; EADS ; Fraunhofer FHR ; DLR ; AIRBUS DEFENCE & SPACE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Projekt TanDEM-X (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Fritz, Dr.rer.nat. Thomas
Deposited On:16 Dec 2014 07:13
Last Modified:17 Dec 2014 09:39

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