On the optimality of decentralized filtering systems

Author

Wen-Hua Chen ; Xin Yuan

Author_Institution

Dept. of Autom. Control, Nanjing Aeronaut. Inst., China

Volume

4

fYear

1993

fDate

19-21 Oct. 1993

Firstpage

150

Abstract

For the multisensor systems, the decentralized information structure can improve the fault-tolerant ability and increase the processing speed. This paper presents the necessary and sufficient condition for the optimality of decentralized linear dynamic filters, i.e., the decentralized filter is equal to the centralized filters. It is pointed out that this condition is satisfied only in rare case. However, by analyzing federated filter presented by Carlson (1990), we show that it is possible to obtain optimal decentralized filters with the modified information structure.<>

Keywords

distributed processing; filtering theory; sensor fusion; decentralized information structure; decentralized linear dynamic filters; fault-tolerant ability; federated filter; multisensor systems; necessary and sufficient condition; optimal decentralized filtering systems; Aerodynamics; Aircraft navigation; Equations; Global Positioning System; Information filtering; Information filters; Nonlinear filters; Sufficient conditions; Vectors; Vehicle dynamics;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON '93. Proceedings. Computer, Communication, Control and Power Engineering.1993 IEEE Region 10 Conference on

Conference_Location

Beijing, China

Print_ISBN

0-7803-1233-3

Type

conf

DOI

10.1109/TENCON.1993.320455

Filename

320455