Effects of region of interest selection on phase history based SAR moving target autofocus

David A. Garren

doi:10.1117/12.2518435

14 May 2019 Effects of region of interest selection on phase history based SAR moving target autofocus

David A. Garren

Proceedings Volume 10987, Algorithms for Synthetic Aperture Radar Imagery XXVI; 1098703 (2019) https://doi.org/10.1117/12.2518435
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

Recent work has revealed that an adaptation of phase gradient autofocus (PGA) techniques can be used to refocus the signature smears induced by moving targets in synthetic aperture radar (SAR) images. In this approach, the residual range migration errors induced by target motion are estimated and corrected within the phase history data (PHD) domain. The resulting quality of the target images generated using this PHD-based autofocus methodology varies according to the selected region-of-interest (ROI) as input into the processing. The present analysis investigates the variation in the quality of the refocused target images with regards to ROI selection.

Conference Presentation

Citation Download Citation

David A. Garren "Effects of region of interest selection on phase history based SAR moving target autofocus", Proc. SPIE 10987, Algorithms for Synthetic Aperture Radar Imagery XXVI, 1098703 (14 May 2019); https://doi.org/10.1117/12.2518435

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