Title :
The simulation of geometric distortion in a synthetic aperture radar image of Alpine terrain
Author :
Corner, W.R. ; Rees, W.G.
Author_Institution :
Dept. of Geogr., Univ. of Manchester Inst. of Sci. & Technol., UK
Abstract :
Due to the viewing geometry of a synthetic aperture radar (SAR) any imaged point not on the surface datum will be distorted, and will appear to lean towards the sensor´s ground track. The higher the point, the greater the distortion. The position of the point within the image swath also has an effect on the resultant distortion. This distortion was quantified, using a curved Earth model. The results showed that a point, in mid-swath, 500 metres above sea level, imaged by the ERS-1 SAR, would be displaced by 1176 metres, 39 pixels, in the direction of the satellite ground track
Keywords :
geophysical techniques; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; topography (Earth); Alpine terrain; ERS-1; SAR imagery; curved Earth model; geometric distortion; geophysical measurement technique; land surface; mountainous terrain; radar imaging; radar remote sensing; satellite ground track; spaceborne radar; synthetic aperture radar; terrain mapping; topography; viewing geometry; Earth; Geography; Geometry; Pixel; Radar tracking; Remote sensing; Satellites; Sea level; Sea surface; Solid modeling; Spaceborne radar; Surface topography; Synthetic aperture radar; Tin;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1995. IGARSS '95. 'Quantitative Remote Sensing for Science and Applications', International
Conference_Location :
Firenze
Print_ISBN :
0-7803-2567-2
DOI :
10.1109/IGARSS.1995.521796
