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Avoiding Phase Unwrapping in DEM Generation by Fusing Multi Frequency Ascending and Descending Interferograms

Eineder, Michael and Adam, Nico (2004) Avoiding Phase Unwrapping in DEM Generation by Fusing Multi Frequency Ascending and Descending Interferograms. In: Proceedings of IGARRS' 2004, CD-ROM, pp. 477-480. IEEE IGARSS, Anchorage, 2004.

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Abstract

This paper presents an approach to fuse an ensemble of interferograms of different wavelengths and viewing geometries to one common digital elevation model (DEM). Phase unwrapping and geocoding are performed “on the fly” and the different interferograms support each other. Propagation of phase unwrapping errors to large areas can no more occur which makes this method especially suitable for rugged mountains. The method is explained and a fusion of SRTM ascending and descending data with data with different wavelengths is demonstrated. The limits and possibilities are demonstrated by varying the number of interferograms and the viewing conditions. Furthermore a performance measure is given and compared with reference data.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2004,
Title:Avoiding Phase Unwrapping in DEM Generation by Fusing Multi Frequency Ascending and Descending Interferograms
Authors:
AuthorsInstitution or Email of Authors
Eineder, MichaelUNSPECIFIED
Adam, NicoUNSPECIFIED
Date:2004
Journal or Publication Title:Proceedings of IGARRS' 2004
Volume:CD-ROM
Page Range:pp. 477-480
Editors:
EditorsEmail
IEEE, UNSPECIFIED
Series Name:Vol. I
Status:Published
Keywords:InSAR Phase unwrapping, DEM reconstruction, SAR interferometry, multi-baseline
Event Title:IEEE IGARSS, Anchorage, 2004
Organizer:IEEE
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):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Deposited By: Cornelia Roehl
Deposited On:26 Jan 2006
Last Modified:06 Jan 2010 22:31

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