Browsing Articles by Author "Weydahl, Dan Johan"
Now showing items 1-5 of 5
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Detection of forest clear-cuts with shuttle radar topography mission (SRTM) and tandem-X InSAR data
Solberg, Svein; Astrup, Rasmus Andreas; Weydahl, Dan Johan (2013)The aim of this study was to determine whether forest clear-cuts during 2000–2011 could be detected as a decrease in surface height by combining Digital Surface Models (DSMs) from the Shuttle Radar Topography Mission ... -
ERS tandem InSAR processing for DEM generation, glacier motion estimation and coherence analysis on Svalbard
Eldhuset, Knut; Andersen, Per Helge; Hauge, Svein; Isaksson, Elisabeth; Weydahl, Dan Johan (2003)This paper describes the unique InSAR (Interferometric Synthetic Aperture Radar) processing algorithms at Norwegian Defence Research Establishment (FFI) and how ERS (European Remote Sensing Satellite) tandem data are used ... -
Geolocation and Stereo Height estimation Using TerraSAR-X Spotlight Image Data
Eldhuset, Knut; Weydahl, Dan Johan (2011)We have studied the geographic position of several high-resolution spotlight TSX images by investigating the location of deployed radar corner reflectors. Results show that the geolocation accuracy is better than the ... -
Temporal stability of X-band single-pass InSAR heights in a spruce forest: Effects of acquisition properties and season
Solberg, Svein; Weydahl, Dan Johan; Astrup, Rasmus Andreas (2015)We investigated the stability of TanDEM-X interferometric synthetic aperture radar (InSAR) heights across eight repeated acquisitions. With InSAR height we mean the height above ground of the scattering phase center. We ... -
Using stereo SAR and InSAR by combining the COSMO-SkyMed and the TanDEM-X mission satellites for estimation of absolute height
Eldhuset, Knut; Weydahl, Dan Johan (2013)The objective of this work is to estimate absolute height in synthetic aperture radar (SAR) interferograms. Since height in interferograms is relative, we use stereo SAR with several satellites to achieve absolute height ...