Welsh, RichardAndre, DanielFinnis, Mark2023-06-272023-06-272023-06-25Welsh R, Andre D, Finnis M. (2023) Volumetric interferometry for sparse 3D synthetic aperture radar with bistatic geometries, Electronics Letters, Volume 59, Issue 12, June 2023, Article Number e128510013-5194https://doi.org/10.1049/ell2.12851https://dspace.lib.cranfield.ac.uk/handle/1826/19904Synthetic Aperture Radar (SAR) renderings in 3D provide additional target information when compared to 2D by separating out features overlaid in height. However, the required 2D SAR aperture, when Nyquist sampled, necessitates large scanning times that would be impractical for most realistic collections. This research has developed a novel volumetric approach to sparse aperture 3D SAR imaging, that is applicable to bistatic SAR near-field geometries, a generalization of far-field cases. This approach is first demonstrated in simulation and then applied to a measured scene containing a model vehicle target, producing sub-Nyquist sampled 3D SAR renderings.enAttribution 4.0 Internationalradarradar imagingradar interferometryradar signal processingsonar and navigationArticle1350-911X