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Aspects of RADARSAT ScanSAR Interferometric Processing

Holzner, Jürgen and Bamler, Richard (2000) Aspects of RADARSAT ScanSAR Interferometric Processing. 22nd Canadian Symposium on Remote Sensing, Victoria, BC, Canada, 21.-25. August 2000.

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ScanSAR interferometry extends the choice of SAR modes by its ability to monitor and map very large areas. Radarsat is the first operational instrument offering wide swath interferometric data; however, in near future there will be two more missions, SRTM and Envisat, which will feature a ScanSAR mode. However, the lack of complex ScanSAR products has restricted the use and development of ScanSAR interferometry so far. In order to take advantage of repeat-pass ScanSAR interferometry new algorithms and processors have to be designed. Important aspects of interferometric ScanSAR processing will be discussed in this paper. Besides interferometric burst assembly and ScanSAR beam combination, co-registration will be an issue. Two possibilities to construct ScanSAR interferograms from the individual bursts will be discussed. Moreover, optimal combination of beams, preserving phase consistency, is also considered. With respect to co-registration Radarsat SAR images with their known high Doppler centroid values, co-registration is of special concern. Accuracies of well below one tenth of a pixel must be achieved. The success of the used techniques will be presented. In addition, a ScanSAR DEM will be shown; its quality will be assessed using a reference DEM from the test site in the vicinity of Las Vegas.

Item URL in elib:https://elib.dlr.de/7833/
Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2001,
Title:Aspects of RADARSAT ScanSAR Interferometric Processing
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:RADARSAT, ScanSAR, Interferometry, Processing
Event Title:22nd Canadian Symposium on Remote Sensing, Victoria, BC, Canada, 21.-25. August 2000
Organizer:Canadian Aeronautics and Space Institute
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: Roehl, Cornelia
Deposited On:20 Feb 2006
Last Modified:06 Jan 2010 22:00

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