Slow Pulse Repetition Interval Variation for High-Resolution Wide-Swath SAR Imaging
De Almeida FQ, Younis M, Prats-Iraola P, Rodriguez-Cassola M, Krieger G, Moreira A (2021)
Publication Type: Journal article
Publication year: 2021
Journal
Book Volume: 59
Pages Range: 5665-5686
Article Number: 9205586
Journal Issue: 7
DOI: 10.1109/TGRS.2020.3023472
Abstract
In the context of spaceborne synthetic aperture radar (SAR) imaging, high resolution and wide swath are inherently conflicting requirements. These may, however, be simultaneously satisfied by advanced imaging modes with multichannel architectures in elevation and/or azimuth. This article elaborates on a new mode based on multiple elevation beams and a simple pulse repetition interval (PRI) variation scheme which allows high-resolution wide-swath imaging. It is shown to use the illumination time more efficiently than ScanSAR and yet to be simpler than staggered SAR. Good SAR imaging performance is achieved with a rather compact antenna design. The proposed imaging mode is suitable for spaceborne SAR systems with planar and reflector antennas. In order to improve the imaging performance, a reflector antenna architecture with a multichannel feed in both elevation and azimuth is considered.
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Germany (DE)How to cite
APA:
De Almeida, F.Q., Younis, M., Prats-Iraola, P., Rodriguez-Cassola, M., Krieger, G., & Moreira, A. (2021). Slow Pulse Repetition Interval Variation for High-Resolution Wide-Swath SAR Imaging. IEEE Transactions on Geoscience and Remote Sensing, 59(7), 5665-5686. https://dx.doi.org/10.1109/TGRS.2020.3023472
MLA:
De Almeida, Felipe Queiroz, et al. "Slow Pulse Repetition Interval Variation for High-Resolution Wide-Swath SAR Imaging." IEEE Transactions on Geoscience and Remote Sensing 59.7 (2021): 5665-5686.
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