23 May 2013 Target migration path morphology of moving targets in spotlight SAR
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Abstract
This paper examines the signature characteristics of moving targets in spotlight synthetic aperture radar (SAR) image data. This analysis considers the special case in which the radar sensor is assumed to move with constant speed and heading on a level flight path with broadside imaging geometry. It is shown that the resulting defocused smear signature in the spotlight SAR image exhibits range migration effects, as has been shown previously for strip map SAR analysis. In particular, cases of uniform target motion exhibit simply curved range migration paths, whereas non-uniform target motion can cause complicated smear shapes.
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David A. Garren, David A. Garren, James W. Scrofani, James W. Scrofani, Murali Tummala, Murali Tummala, John C. McEachen, John C. McEachen, } "Target migration path morphology of moving targets in spotlight SAR", Proc. SPIE 8746, Algorithms for Synthetic Aperture Radar Imagery XX, 87460B (23 May 2013); doi: 10.1117/12.2022410; https://doi.org/10.1117/12.2022410
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