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k-space sample simulation results for a radially encoded Shepp-Logan phantom using NUFFT method with μ = 2 and q = 8. (a) Real part of the true k-space data ℜ(s). (b) Real part of the simulation using NUFFT-2 ℜ(snu). (c) ℜ(snu)−ℜ (s). (d) Imaginary part of the true k-space data 𝔍(s). (e) Imaginary part of the simulation using NUFFT-2 𝔍(snu). (f) 𝔍(snu)−𝔍(s).
