Ensemble Kalman Filter and 4D-Var Intercomparison with

filter4dABSTRACT Lappeenranta University of Technology Department of Mathematics and Physics Idrissa S. Amour On Variational Ensemble Kalman Filtering Thesis for the Degree of Master ofModeling the Imaging System#. We’ll model two different imaging systems here: an idealized imaging system, and a true SPECT imaging system. We’ll show that filtered back projection