Discrete-Time Filtering for Linear Systems in Correlated Noise with Non-Gaussian Initial Conditions.
Makowski, Armand M.
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We consider the one-step prediction problem for discrete-time linear systems in correlated plant and observation noises, and non-gaussian initial conditions. Explicit representations are obtained for the MMSE and LMSE ( or Kalman) estimates of the state given past observations. These formulae are obtained with the help of the Girsanov transformation for Gaussian white noise sequences, and display explicitly the dependence of the quantities of interest on the initial distribution. Applications of these results can be found in  and .