GriddingΒΆ

Example notional Non-Uniform FFT Gridding function(s) provided here to assess performance of infrastructure package.

To access these functions, use your favorite variation of: import cngi.gridding

calc_image_cell_size

Calculates an appropriate number of pixels and and cell size for imaging a measurement set.

create_prolate_spheroidal_kernel

Create PSWF to serve as gridding kernel

create_prolate_spheroidal_kernel_1D

dirty_image

Grids visibilities from Visibility Dataset and returns dirty Image Dataset.

grid

Grids visibilities from Visibility Dataset.

prolate_spheroidal_function

Calculate PSWF using an old SDE routine re-written in Python

standard_grid

Grids visibilities.