Abstract
Presently, Cosmo-SkyMed (CSK) and TerraSAR-X (TSX) are the most advanced synthetic aperture radar (SAR) satellites which offer highest spatial resolution that could not be achieved from previous spaceborne SAR missions. In addition to high spatial resolution both of them are capable of repeat-pass interferometry that makes possible three dimensional digital modelling of visible earth surface from space. In this study, digital earth modelling performance of CSK and TSX high resolution spotlight (HS) images is comprehensively analyzed regarding absolute and relative vertical accuracies of generated digital surface models (DSMs). Accuracies were calculated on different land classes in Istanbul using a reference DSM derived by airborne laser scanning (ALS). Compatible results were achieved for CSK and TSX in open, built-up, and forest land classes. The absolute vertical accuracies are between 8 m and 10 m considering standard deviation. The relative vertical accuracies are superior to absolute both for CSK and TSX as expected from active sensing.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
