Further results on decentralized change detection

Author

Veeravalli, Venugopal

Author_Institution

Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA

fYear

1997

fDate

29 Jun-4 Jul 1997

Firstpage

529

Abstract

We consider the problem of detecting an abrupt change in a system based on stochastic observations of the system. The centralized version of this problem well-understood and has been solved under a variety of criteria since the seminal work by Page (1954). A decentralized formulation of the change detection problem was considered by Teneketzis and Varaiya (1984) and by Crow and Schwartz (see IEEE Trans. Aerosp. Electron Syst., vol.32, no.1, p.267-83, 1996) with each of the sensors performing a CUSUM type test. A formulation of the decentralized change detection problem with a fusion center making the final decision about the change was given by Veeravalli (see Proc. 1995 Internat. Symp. Inform. Th., Whistler, BC, Canada, p.294, 1995). Here we present further results on this problem with an emphasis on solutions for practical information structures

Keywords

decision theory; feedback; multivariable systems; sensor fusion; signal detection; stochastic processes; CUSUM type test; abrupt change detection; decentralized change detection; decentralized formulation; decision feedback; fusion center; sensors; stochastic observations; Decision making; Detectors; Feedback; Performance evaluation; Probability; Sensor fusion; Sensor systems; Statistics; Stochastic systems; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory. 1997. Proceedings., 1997 IEEE International Symposium on

Conference_Location

Ulm

Print_ISBN

0-7803-3956-8

Type

conf

DOI

10.1109/ISIT.1997.613466

Filename

613466