Azimuth-to-Frequency Mapping in Airborne SAR Data Corrupted by Uncompensated Motion Errors
- 3 July 2013
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Geoscience and Remote Sensing Letters
- Vol. 10 (6), 1493-1497
- https://doi.org/10.1109/lgrs.2013.2260721
Abstract
Airborne synthetic aperture radar (SAR) raw data are affected by motion errors. These are commonly accounted for via standard two-step motion compensation (MOCO) algorithm followed by the Precise Topography- and Aperture-dependent (PTA) procedure proposed some years ago. In this letter, we show how the azimuth-to-frequency mapping used by the PTA approach should be modified to fully account for the presence of uncompensated motion errors.Keywords
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