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The approach for combining DEM acquistions for the TanDEM-X DEM mosaic

Gruber, Astrid and Wessel, Birgit and Huber, Martin and Breunig, Markus and Wagenbrenner, Susanne (2013) The approach for combining DEM acquistions for the TanDEM-X DEM mosaic. In: Proceedings of IGARSS 2013. IGARSS, 21.-26. Jul. 2013, Melbourne, Australia.

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Abstract

For the global TanDEM-X DEM the whole world will be acquired by at least two coverages. Thereby on the one hand phase unwrapping errors are reduced by applying the dual-baseline method and on the other hand a low noise level is ensured even for difficult areas like forests and steep terrain. During DEM mosaicking, the single interferometric DEMs are merged together. This paper focuses on the combination of heights in overlapping areas with significant height differences. The challenge here is to choose the most reliable height value. The improvement applying this strategy in contrast to simple averaging and the general benefit of using more than one acquisition is shown by means of some example mosaics.

Item URL in elib:https://elib.dlr.de/89449/
Document Type:Conference or Workshop Item (Speech)
Title:The approach for combining DEM acquistions for the TanDEM-X DEM mosaic
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gruber, AstridAstrid.Gruber (at) dlr.deUNSPECIFIED
Wessel, BirgitBirgit.Wessel (at) dlr.deUNSPECIFIED
Huber, MartinMartin.Huber (at) dlr.deUNSPECIFIED
Breunig, MarkusMarkus.Breunig (at) dlr.deUNSPECIFIED
Wagenbrenner, SusanneSusanne.Wagenbrenner (at) dlr.deUNSPECIFIED
Date:2013
Journal or Publication Title:Proceedings of IGARSS 2013
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:TanDEM-X, InSAR, mosaicking, DEM
Event Title:IGARSS
Event Location:Melbourne, Australia
Event Type:international Conference
Event Dates:21.-26. Jul. 2013
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 - Projekt TanDEM-X
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Leitungsbereich DFD
Deposited By: Gruber, Astrid
Deposited On:17 Jul 2014 10:04
Last Modified:31 Jul 2019 19:46

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