Decentralized CUSUM Change Detection

Author

Moustakides, George V.

Author_Institution

Dept. of Comput. & Commun. Eng., Univ. of Thessaly, Volos

fYear

2006

fDate

10-13 July 2006

Firstpage

1

Lastpage

6

Abstract

We consider the problem of decentralized change detection using the CUSUM test. More than one sensors acquire independent signals and send their quantized version to a fusion center that uses this information to detect a simultaneous change in all sensors. By introducing a recurrence relation that defines the optimum performance of the CUSUM test for given quantization, we further optimize this measure with respect to the quantization scheme. We compare the resulting optimum test with a simple, asynchronous one shot strategy, where each sensor performs a local CUSUM test and communicates with the fusion center only once to signal its detection

Keywords

quantisation (signal); sensor fusion; signal detection; CUSUM test; decentralized change detection; fusion center; quantization scheme; sensors; Density functional theory; Gunshot detection systems; Integral equations; Performance evaluation; Quantization; Sensor fusion; Sequential analysis; Signal detection; Statistical analysis; Testing; CUSUM; Change detection; Decentralized detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Fusion, 2006 9th International Conference on

Conference_Location

Florence

Print_ISBN

1-4244-0953-5

Electronic_ISBN

0-9721844-6-5

Type

conf

DOI

10.1109/ICIF.2006.301578

Filename

4085864