SARLab
Fakultäten » Mathematisch-naturwissenschaftliche Fakultät » Geographisches Institut » Fernerkundung/Remote Sensing Laboratories » Prof. Dr. Michael Schaepman » SARLab
Completed research project
| Title / Titel | SAR Geocoding | ||||||||
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| Abstract (PDF, 14 KB) | |||||||||
| Summary / Zusammenfassung | Synthetic Aperture Radar (SAR) Images are normally provided in a radar geometries aligned to the direction of sensor motion: the range dimension is either the sensor's native slant range or its projection onto the Earth's ellipsoid - ground range. Combination of the images with data from other sources, however, often requires conversion to a conventional map geometry. The slant or ground range geometry images can include severe height-induced geometric and radiometric distortions, particularly for scenes with significant topography. Digital Elevation Models (DEMs) can be used to remove terrain-induced geometric distortions in Synthetic Aperture Radar imagery. Techniques for such image rectification have been developed within our group. The operational ERS satellite terrain-geocoding software used to rectify SAR imagery from the ERS-1 and ERS-2 satellites at the D-PAF and UK-PAF was developed at the University of Zürich. Examples of ESA ERS Products are available. Recent research has focussed on ScanSAR imaging modes, and the heteromorphic nature of the radar imaging process, particularly in steep mountainous areas, where layover occurs. Weitere Informationen |
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| Keywords / Suchbegriffe | SAR, Geocoding, Geolocation, Map, Range, Doppler, Terrain, Ellipsoid | ||||||||
| Project leadership and contacts / Projektleitung und Kontakte |
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| Funding source(s) / Unterstützt durch |
Other Public Sources (e.g. Federal or Cantonal Agencies) |
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| In collaboration with / In Zusammenarbeit mit |
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| Duration of Project / Projektdauer | Jan 2006 to Dec 2010 |