We consider the interpolation problem associated with the back-projection (BP), fast BP (FBP), and fast factorized BP (FFBP) algorithms exploited in synthetic aperture radar (SAR). The 2-D interpolation required by FBP and FFBP must be properly performed to mitigate the effect of the truncation error and to achieve accurate results, and can be effectively performed by adopting 2-D nonuniform fast Fourier transform (NUFFT) routines.
NUFFT-Based Interpolation in Backprojection Algorithms / Breglia, A.; Capozzoli, A.; Curcio, C.; Liseno, A.. - In: IEEE GEOSCIENCE AND REMOTE SENSING LETTERS. - ISSN 1545-598X. - 18:12(2021), pp. 2117-2121. [10.1109/LGRS.2020.3013444]
NUFFT-Based Interpolation in Backprojection Algorithms
Breglia A.;Capozzoli A.;Curcio C.;Liseno A.
2021
Abstract
We consider the interpolation problem associated with the back-projection (BP), fast BP (FBP), and fast factorized BP (FFBP) algorithms exploited in synthetic aperture radar (SAR). The 2-D interpolation required by FBP and FFBP must be properly performed to mitigate the effect of the truncation error and to achieve accurate results, and can be effectively performed by adopting 2-D nonuniform fast Fourier transform (NUFFT) routines.| File | Dimensione | Formato | |
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NUFFT-Based_Interpolation_in_Backprojection_Algorithms.pdf
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