Title :
Quality assessment of InSAR-derived DEMs generated with ERS tandem data
Author :
Schwäbisch, M. ; Matschke, M. ; Knöpfle, W. ; Roth, A.
Author_Institution :
Remote Sensing Data Center, German Aerosp. Res. Establ., Oberpfaffenhofen, Germany
Abstract :
Provides a quality assessment of digital elevation models generated by means of SAR interferometry and the use of ERS tandem data. A total of 8 scene pairs have been investigated, acquired at different dates but covering the same site to allow a study of the different parameters such as temporal decorrelation, baseline, and varying incidence angles. The ERS tandem configuration implies some characteristics that are examined, concerning in particular the system parameters. Moreover, peculiarities detected during the interferometric processing are reported. The achieved results are compared to an existing reference DEM. Additionally, the InSAR-derived DEMs are compared to each other to study SAR-specific effects
Keywords :
geophysical techniques; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; topography (Earth); DEM; ERS tandem data; InSAR; SAR interferometry; baseline effects; digital elevation model; geophysical measurement technique; interferometric SAR; land surface topography; quality assessment; radar remote sensing; scene pair; spaceborne radar imaging; synthetic aperture radar; temporal decorrelation; terrain mapping; varying incidence angle; Azimuth; Decorrelation; Design for disassembly; Digital elevation models; Interferometry; Layout; Least squares methods; Quality assessment; Remote sensing; Stability;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
DOI :
10.1109/IGARSS.1996.516480
