TY - JOUR
T1 - Iterative Filtering and Smoothing In Non-Linear and Non-Gaussian Systems Using Conditional Moments
AU - Tronarp, Filip
AU - Garcia Fernandez, Angel
AU - Särkkä, Simo
PY - 2018/1/17
Y1 - 2018/1/17
N2 - This letter presents the development of novel iterated filters and smoothers that only require specification of the conditional moments of the dynamic and measurement models. This leads to generalisations of the iterated extended Kalman filter, the iterated extended Kalman smoother, the iterated posterior linearisation filter, and the iterated posterior linearisation smoother. The connections to the previous algorithms are clarified and a convergence analysis is provided. Furthermore, the merits of the proposed algorithms are demonstrated in simulations of the stochastic Ricker map where they are shown to have similar or superior performance to competing algorithms.
AB - This letter presents the development of novel iterated filters and smoothers that only require specification of the conditional moments of the dynamic and measurement models. This leads to generalisations of the iterated extended Kalman filter, the iterated extended Kalman smoother, the iterated posterior linearisation filter, and the iterated posterior linearisation smoother. The connections to the previous algorithms are clarified and a convergence analysis is provided. Furthermore, the merits of the proposed algorithms are demonstrated in simulations of the stochastic Ricker map where they are shown to have similar or superior performance to competing algorithms.
KW - iterative methods
KW - statistical linear regression
KW - non-linear/non-Gaussian systems
KW - State estimation
U2 - 10.1109/LSP.2018.2794767
DO - 10.1109/LSP.2018.2794767
M3 - Article
SN - 1070-9908
VL - 25
SP - 408
EP - 412
JO - IEEE Signal Processing Letters
JF - IEEE Signal Processing Letters
IS - 3
ER -