This repository contains the description on how to compute the size of the so-called "beam" in Optical Long Baseline Interferometry. It is the size of the central lobe of the impulse response (aka the dirty beam or the point spread function) and it sets the size of a resolution element of the system.
This computation is described in details in the following document:
Example of this comptation are shown in the following Julia notebooks. As Nbviewer cannot show plotly plots properly, it can be directly seen here. There you can zoom in to compare the image of the beam and the estimated ellipse.
This repository contains also a small Julia tool shipped in the package BeamEstimation to compute this beam. Please look at the notebook how to use this tool.
To install it:
using Pkg
Pkg.add(url="https://github.com/JMMC-OpenDev/oibeam.git")