Distributed detection of a nuclear radioactive source using fusion of correlated decisions

Ashok Sundaresan, Pramod K. Varshney, Nageswara S.V. Rao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

62 Scopus citations

Abstract

A distributed detection method is developed for the detection of a nuclear radioactive source using a small number of radiation counters. Local one bit decisions are made at each sensor over a period of time and a fusion center makes the global decision. A novel test for the fusion of correlated decisions is derived using the theory of copulas and optimal sensor thresholds are obtained using the Normal copula function. The performance of the derived fusion rule is compared with that of the Chair-Varshney rule. An increase in detection performance is observed. A method to estimate the correlation between the sensor observations using only the vector of sensor decisions is also proposed.

Original languageEnglish (US)
Title of host publicationFUSION 2007 - 2007 10th International Conference on Information Fusion
DOIs
StatePublished - Dec 1 2007
EventFUSION 2007 - 2007 10th International Conference on Information Fusion - Quebec, QC, Canada
Duration: Jul 9 2007Jul 12 2007

Publication series

NameFUSION 2007 - 2007 10th International Conference on Information Fusion

Other

OtherFUSION 2007 - 2007 10th International Conference on Information Fusion
CountryCanada
CityQuebec, QC
Period7/9/077/12/07

ASJC Scopus subject areas

  • Hardware and Architecture
  • Information Systems
  • Signal Processing
  • Software

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    Sundaresan, A., Varshney, P. K., & Rao, N. S. V. (2007). Distributed detection of a nuclear radioactive source using fusion of correlated decisions. In FUSION 2007 - 2007 10th International Conference on Information Fusion [4408143] (FUSION 2007 - 2007 10th International Conference on Information Fusion). https://doi.org/10.1109/ICIF.2007.4408143