We deal with the fast evaluation of the radiation operator of aperiodic arrays. We develop a fast numerical algorithm using optimized 2D Non-Uniform FFTs (NUFFTs) of NED (Non-Equispaced Data) type and parallel processing on Graphics Processing Units (GPUs). \\A fast GPU-implementation of the NUFFT routine is achieved by exploiting a polynomial representation of the involved spatial and spectral windows and by using the Horner polynomial calculation scheme.
Optimized, Parallel Nonuniform Fast Fourier Transform (FFT) for Radiation From Aperiodic Arrays / Capozzoli, Amedeo; Curcio, Claudio; Liseno, Angelo. - In: RADIO SCIENCE LETTERS. - ISSN 2736-2760. - 4:(2022), pp. 1-5. [10.46620/22-0064]
Optimized, Parallel Nonuniform Fast Fourier Transform (FFT) for Radiation From Aperiodic Arrays
amedeo capozzoli;claudio curcio;angelo liseno
2022
Abstract
We deal with the fast evaluation of the radiation operator of aperiodic arrays. We develop a fast numerical algorithm using optimized 2D Non-Uniform FFTs (NUFFTs) of NED (Non-Equispaced Data) type and parallel processing on Graphics Processing Units (GPUs). \\A fast GPU-implementation of the NUFFT routine is achieved by exploiting a polynomial representation of the involved spatial and spectral windows and by using the Horner polynomial calculation scheme.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
