w_beam

w_beam(npixel, field_of_view, w, cx=None, cy=None, remove_shift=False)

W beam, the fresnel diffraction pattern arising from non-coplanar baselines

Parameters

• npixel – Size of the grid in pixels

• field_w_beamof_view – Field of view

• w – Baseline distance to the projection plane

• cx – location of delay centre def :npixel//2

• cy – location of delay centre def :npixel//2

• remove_shift – Remove overall phase shift at the centre of the image

Returns

npixel x npixel array with the far field