transformToSpatialDomainAtPosition

transform from \((k,l)\) on the DFT grid to \((x,y)\) at any position

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Declaration

 u = transformToSpatialDomainAtPosition(u_bar)

Parameters

• u_bar a complex-valued matrix of size [Nk_dft Nl_dft]

Returns

• u a real-valued matrix of size [length(x) length(y)]

Discussion

Performs an inverse non-uniform Fourier transform to take a matrix from the DFT grid back to the spatial domain at any set of points (x,y).