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Alpine Digital Elevation Models From Radar Interferometry - A Generic Approach to Exploit Multiple Imaging Geometries

Eineder, Michael (2005) Alpine Digital Elevation Models From Radar Interferometry - A Generic Approach to Exploit Multiple Imaging Geometries. In: ISPRS Hannover Workshop, High-Resolution Earth Imaging for Geospatial Information2005, auf CD-ROM und online verfügbar.. ISPRS Hannover Workshop 2005 - High- Resolution Earth Imaging for Geospatial Information, Hannover, Germany, May 17-20, 2005.

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Official URL: http://www.ipi.uni-hannover.de/html/publikationen/2005/workshop/125-eineder.pdf

Abstract

The generation of Digital Elevation Models (DEMs) from Synthetic Aperture Radar Interferometry (InSAR) has developed rapidly in the last 10 years. This new method proofed to be operational with the global success of the Shuttle Radar Topography Mission in the year 2000 and with several companies offering regional topographic mapping campaigns based on airborne InSAR today. However, the current radar systems and the current processing methods will deliver robust results only over moderate terrain. When confronted with steep mountains or canyons, the measurement principle poses a number of problems that are quite hard to solve. The reason being the radar viewing geometry that limits the range of observable terrain slopes in one acquisition and the problem to unwrap the ambiguous phase, a measure for the radar look angle. The paper shows examples from the Shuttle Radar Topography Mission in mountainous terrain and demonstrates some specific deficiencies. Then, some processing techniques are sketched that can help to achieve improved results with available data. Finally, techniques for future high resolution InSAR DEM missions are proposed to minimize the artefacts in mountainous terrain and to actively use multi-angle, multi-frequency observations for more robust and more complete DEM reconstruction

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=2005,
Title:Alpine Digital Elevation Models From Radar Interferometry - A Generic Approach to Exploit Multiple Imaging Geometries
Authors:
AuthorsInstitution or Email of Authors
Eineder, MichaelUNSPECIFIED
Date:2005
Journal or Publication Title:ISPRS Hannover Workshop, High-Resolution Earth Imaging for Geospatial Information2005, auf CD-ROM und online verfügbar.
Editors:
EditorsEmail
ISPRS, UNSPECIFIED
Status:Published
Keywords:Synthetic Aperture Radar, SAR, InSAR, Interferometry, Digital Elevation Model, DEM, Geocoding
Event Title:ISPRS Hannover Workshop 2005 - High- Resolution Earth Imaging for Geospatial Information, Hannover, Germany, May 17-20, 2005
Organizer:ISPRS
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:27 Jan 2006
Last Modified:14 Jan 2010 19:44

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