Underwater localization with time-synchronization and propagation speed uncertainties

Roee Diamant, Lutz Lampe

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Underwater localization is a key element in most underwater communication applications. Since GPS signals highly attenuate in water, accurate ranging based techniques for localization need to be developed. In this paper we describe a sequential algorithm for time-synchronization and localization in the underwater acoustic channel. We consider the realistic case where nodes are not time-synchronized and the sound speed in water is unknown, and formalize the localization problem as a sequence of two linear estimation problems. Simulation results demonstrate that our algorithm compensates for time-synchronization and signal propagation speed uncertainties, and achieves good localization accuracy using only two anchor nodes.

Original languageEnglish
Title of host publicationProceedings of the 8th Workshop on Positioning Navigation and Communication 2011, WPNC 2011
Pages100-105
Number of pages6
DOIs
StatePublished - 2011
Externally publishedYes
Event8th Workshop on Positioning Navigation and Communication 2011, WPNC 2011 - Dresden, Germany
Duration: 7 Apr 20118 Apr 2011

Publication series

NameProceedings of the 8th Workshop on Positioning Navigation and Communication 2011, WPNC 2011

Conference

Conference8th Workshop on Positioning Navigation and Communication 2011, WPNC 2011
Country/TerritoryGermany
CityDresden
Period7/04/118/04/11

Keywords

  • Underwater acoustic localization (UWAL)
  • propagation speed uncertainties
  • time synchronization and localization

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

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