Fast and direct inversion methods for the multivariate nonequispaced fast Fourier transform

The well-known discrete Fourier transform (DFT) can easily be generalized to arbitrary nodes in the spatial domain. The fast procedure for this generalization is referred to as nonequispaced fast Fourier transform (NFFT). Various applications such as MRI and solution of PDEs are interested in the in...

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Principais autores:	Melanie Kircheis, Daniel Potts
פורמט:	Artigo
שפה:	Inglês
יצא לאור:	Frontiers Media S.A. 2023-06-01
סדרה:	Frontiers in Applied Mathematics and Statistics
נושאים:	inverse nonequispaced fast Fourier transform nonuniform fast Fourier transform direct inversion iNFFT NFFT
גישה מקוונת:	https://www.frontiersin.org/articles/10.3389/fams.2023.1155484/full
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