Fault-tolerant and finite-error localization for point emitters within the diffraction limit

Understand

We implement an estimator for determining the separation between two incoherent point sources.

• This estimator relies on image inversion interferometry and when used with the appropriate data analytics, it yields an estimate of the separation with finite-error, even when the sources come arbitrarily close together.
• The experimental results show that the technique has a good tolerance to noise and misalignment, making it an interesting consideration for high resolution instruments.