Nonlinear Kalman filters for calibration in radio interferometry
Nonlinear Kalman filters for calibration in radio interferometry
We present a new calibration scheme based on a non-linear version of Kalman filter that aims at estimating the physical terms appearing in the Radio Interferometry Measurement Equation (RIME). We enrich the filter's structure with a tunable data representation model, together with an augmented measurement model for regularization. We show …