Geometric accuracy in airborne SAR images
- 1 March 1989
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Aerospace and Electronic Systems
- Vol. 25 (2) , 241-258
- https://doi.org/10.1109/7.18685
Abstract
Uncorrected across-track motions of a synthetic aperture radar (SAR) platform can cause both a severe loss of azimuthal positioning accuracy in, and defocusing of, the resultant SAR image. It is shown how the results of an autofocus procedure can be incorporated in the azimuth processing to produce a fully focused image that is geometrically accurate in azimuth. Range positioning accuracy is also discussed, leading to a comprehensive treatment of all aspects of geometric accuracy. The system considered is an X-band SAR.<>Keywords
This publication has 3 references indexed in Scilit:
- The removal of azimuth distortion in synthetic aperture radar imagesInternational Journal of Remote Sensing, 1988
- Distortion free SAR imagery and change detectionPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1988
- The Prediction of Geometric Distortions in Airborne Synthetic Aperture Radar Imagery from Autofocus MeasurementsIEEE Transactions on Geoscience and Remote Sensing, 1987