Add Unscented Kalman Filter
The Unscented Kalman Filter (UKF) is a derivative-free alternative to the Extended Kalman Filter (EKF). UKF algorithm extends orbit determination to non-linear systems and can take into account higher order effects than the EKF.
The algorithm has been validated against both simulated and real data.
For more details, see [1][2].
[1]: A New Extension of the Kalman Filter to Nonlinear Systems, Simon J.Julier and Jeffrey K. Uhlmann, 1997.
[2]: Analysis of relative merits of Unscented and Extended Kalman Filters in Orbit Determination, James Woodburn and Vincent Coppola, 2019
Edited by Gaëtan Pierre