ERS-1/ERS-2 tandem data for digital elevation model generation

Author

Coltelli, M. ; Fornaro, Gianfranco ; Franceschetti, G. ; Lanari, R. ; Puglisi, G. ; Sansosti, E. ; Tesauro, M.

Author_Institution

Ist. Int. di Vulcanologia, CNR, Catania, Italy

Volume

2

fYear

1998

fDate

6-10 Jul 1998

Firstpage

1088

Abstract

The authors combine ascending and descending ERS tandem data in order to minimize the errors due to the illumination geometry in digital elevation model generation; this is carried out by using data pairs with large baselines which are less sensitive to baseline uncertainties and atmospheric effects. Phase unwrapping difficulties are overcome by means of a flattening technique based on the use of interferograms with smaller baselines

Keywords

geophysical techniques; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; topography (Earth); DEM; ERS-1; ERS-2; InSAR; SAR; ascending data; descending ERS tandem data; digital elevation model generation; geophysical measurement technique; illumination geometry; interferogram; land surface topography; phase unwrapping; radar remote sensing; spaceborne radar; synthetic aperture radar; tandem data; terrain mapping; Digital elevation models; Geometry; Lighting; Low pass filters; Noise reduction; Solid modeling; Surfaces; Synthetic aperture radar interferometry; Testing; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International

Conference_Location

Seattle, WA

Print_ISBN

0-7803-4403-0

Type

conf

DOI

10.1109/IGARSS.1998.699681

Filename

699681