We study the stability of the optimal filter w.r.t. its initial
condition and w.r.t. the model for the hidden state and the observations
in a general hidden Markov model, using the Hilbert projective metric.
These stability results are then used to prove, under some mixing
assumption, the uniform convergence to the optimal filter
of several particle filters, such as the interacting particle filter
and some other original particle filters.
@article{1075828050,
author = {Le Gland, Fran\c cois and Oudjane, Nadia},
title = {Stability and uniform approximation of nonlinear filters using the Hilbert metric and application to particle filters},
journal = {Ann. Appl. Probab.},
volume = {14},
number = {1},
year = {2004},
pages = { 144-187},
language = {en},
url = {http://dml.mathdoc.fr/item/1075828050}
}
Le Gland, François; Oudjane, Nadia. Stability and uniform approximation of nonlinear filters using the Hilbert metric and application to particle filters. Ann. Appl. Probab., Tome 14 (2004) no. 1, pp. 144-187. http://gdmltest.u-ga.fr/item/1075828050/