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  • Research Article
  • Open Access

Localization Accuracy of Track-before-Detect Search Strategies for Distributed Sensor Networks

EURASIP Journal on Advances in Signal Processing20072008:264638

  • Received: 22 March 2007
  • Accepted: 30 August 2007
  • Published:


The localization accuracy of a track-before-detect search for a target moving across a distributed sensor field is examined in this paper. The localization accuracy of the search is defined in terms of the area of intersection of the spatial-temporal sensor coverage regions, as seen from the perspective of the target. The expected value and variance of this area are derived for sensors distributed randomly according to an arbitrary distribution function. These expressions provide an important design objective for use in the planning of distributed sensor fields. Several examples are provided that experimentally validate the analytical results.


  • Distribution Function
  • Information Technology
  • Sensor Network
  • Quantum Information
  • Design Objective

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Authors’ Affiliations

Naval Undersea Warfare Center, 1176 Howell Street, Newport, RI 02841, USA


© T. A.Wettergren and M. J.Walsh. 2008

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.