elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

Interferometric Digital Elevation Model Reconstruction – Experiences from SRTM and Multi Channel Approaches for Future Missions

Eineder, Michael and Krieger, Gerhard (2005) Interferometric Digital Elevation Model Reconstruction – Experiences from SRTM and Multi Channel Approaches for Future Missions. In: IEEE International Geoscience and Remote Sensing Symposium, Seoul, Korea, 25-29 July 2005, [4], pp. 2664-2667. IEEE. IGARSS 2005, IEEE International Geoscience and Remote Sensing Symposium, [2005-07-25 - 2005-07-29], Seoul, Korea.

Full text not available from this repository.

Abstract

The Shuttle Radar Topography Mission flown in the year 2000 was the first approach to generate a global DEM from interferometric SAR. The C-band and X-band data acquired in 11 days have been processed with great success at NASA/JPL and at the German Aerospace Center DLR, respectively. Both data sets however show problems that should be taken care of in the design of future InSAR DEM missions: - phase unwrapping turned out to be unreliable in rugged mountain areas with very steep slopes - radar shadow and layover rendered significant areas in rugged mountain unusable - the vertical accuracy was limited by the signal to noise ratio (SNR), by the baseline length and by the baseline knowledge The SNR is expensive to improve and future missions like, e.g. the TanDEM-X mission currently studied at DLR, tend to use larger baselines therefore. This, however, will further complicate phase unwrapping. The key to improve phase unwrapping stability while simultaneously increasing height accuracy is a multi channel InSAR system. Multiple channels can be achieved by different frequencies, delta-k processing, multiple simultaneous baselines or multiple observations with different baselines. This paper summarizes the SRTM difficulties and sketches the strategies that could overcome them in future multi satellite missions. A baseline selection and acquisition strategy together with accompanying processing techniques are proposed in order to generate a global high precision DEM of the Earth in a reasonable time with available technologies.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Interferometric Digital Elevation Model Reconstruction – Experiences from SRTM and Multi Channel Approaches for Future Missions
Authors:
AuthorsInstitution or Email of Authors
Eineder, MichaelUNSPECIFIED
Krieger, GerhardUNSPECIFIED
Date:July 2005
Journal or Publication Title:IEEE International Geoscience and Remote Sensing Symposium, Seoul, Korea, 25-29 July 2005
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Volume:[4]
Page Range:pp. 2664-2667
Editors:
EditorsEmail
IEEE, UNSPECIFIED
Publisher:IEEE
Series Name:Conference Proceedings
Status:Published
Keywords:DEM, SRTM, multi baseline, multi channel, InSAR, interferometry, TanDEM-X
Event Title:IGARSS 2005, IEEE International Geoscience and Remote Sensing Symposium
Event Location:Seoul, Korea
Event Type:international Conference
Event Dates:[2005-07-25 - 2005-07-29]
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):W - Vorhaben Studien zu neuen EO-Missionen (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Microwaves and Radar Institute > Spaceborne SAR Systems
Remote Sensing Technology Institute > Image Science
Deposited By: Dr.rer.nat. Michael Eineder
Deposited On:07 Feb 2006
Last Modified:27 Apr 2009 04:59

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.