DocumentCode
1430356
Title
Finite-dimensional filters with nonlinear drift X: explicit solution of DMZ equation
Author
Yan, S.S.-T. ; Hu, Guo-Qing
Author_Institution
Dept. of Math. Stat. & Comput. Sci., Illinois Univ., Chicago, IL, USA
Volume
46
Issue
1
fYear
2001
fDate
1/1/2001 12:00:00 AM
Firstpage
142
Lastpage
148
Abstract
In this note, we consider the explicit solution of Duncan-Mortensen-Zakai (DMZ) equation for the finite-dimensional filtering system. We show that Yau´s (1990, 1994) filtering system (δfj/δxi)-(δfi /δxi)=cij=constant for all (i,j) can be solved explicitly with an arbitrary initial condition by solving a system of ordinary differential equations and a Kolmogorov-type equation. Let n be the dimension of state space. We show that we need only n sufficient statistics in order to solve the DMZ equation
Keywords
differential equations; filtering theory; multidimensional systems; nonlinear filters; DMZ equation; Duncan-Mortensen-Zakai equation; Kolmogorov-type equation; explicit solution; finite-dimensional filtering system; finite-dimensional filters; multidimensional state space; nonlinear drift; ordinary differential equations; Algebra; Convergence; Differential equations; Filtering; Job shop scheduling; Nonlinear equations; Nonlinear filters; Queueing analysis; Statistics; Stochastic processes;
fLanguage
English
Journal_Title
Automatic Control, IEEE Transactions on
Publisher
ieee
ISSN
0018-9286
Type
jour
DOI
10.1109/9.898707
Filename
898707
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