Events
FOSS4G-CEE & Geoinformatics 2012 conference will start on 20th of May in Prague, Czech Republic.
ASRC will participate to the “First International Conference on Moldavian Risks - from Global to Local Scale” between 16th and 19th of May, 2012.
During the training session of the Geospace project at the beginning of February 2012, the ASRC experts introduced to the participants the 4.0 version of the LEOWorks, as one of the interactive teaching instruments for Geography and Geomatics promoted by the project.
Eduspace launched the Interactive Meteosat application that started in 2009 as a project conducted by ASRC.
Interferometric Generation of Digital Elevation Models for Urban Areas Using TerraSAR-X
Valentin Poncos (ASRC), Iulia Dana (Romanian Space Agency)
German Space Agency - TerraSAR-X Science Meeting, 25 – 26 November 2008
Abstract
Digital Elevation Models (DEMs) are simply a discrete representation of the ground surface. Different techniques are used for the processing of the DEM source data: aerial and satellite photogrammetry, radargrammetry, synthetic aperture radar interferometry (InSAR), airborne laser scanning, cartographic digitization of the existing maps, traditional and modern surveying methods.
Synthetic Aperture Radar (SAR) interferometry implies the acquisition of two radar complex images from slightly different positions; based on the phase differences between these images an interferogram is generated and further on a DEM can be derived. In the framework of the TerraSAR-X Project, a number of Single Look Slant Range Complex (SSC) Stripmap and High Resolution Spotlight images were acquired over Bucharest, having multiple temporal baselines. The article presents the interferometric processing chain undertaken by the scientific team in order to investigate the possibility to obtain a DEM for an urban test area using TerraSAR-X images
Interferometric Generation of Digital Elevation Models for Urban Areas Using TerraSAR-X (pdf)
Interferometric Generation of Digital Elevation Models for Urban Areas Using TerraSAR-X - Presentation (pdf)