simulate_point

simulate_point(dist_uvw, l, m)

Simulate visibilities for unit amplitude point source at direction cosines (l,m) relative to the phase centre.

This includes phase tracking to the centre of the field (hence the minus 1 in the exponent.)

Note that point source is delta function, therefore the FT relationship becomes an exponential, evaluated at (uvw.lmn)

Parameters

• dist_uvw – \((u,v,w)\) distribution of projected baselines (in wavelengths)

• l – horizontal direction cosine relative to phase tracking centre

• m – orthogonal directon cosine relative to phase tracking centre