The Influence of Fluctuations in Acoustic Travel Time on Locating the Position of an Underwater Sound Source.

Abstract

This paper investigates the accuracy of an underwater acoustic positioning system in locating a sound source that transmits at unknown times in conditions in which the acoustic travel times between source and receivers fluctuate widely. The system uses three omnidirectional receivers. The accuracy of the system depends very much on the relative positions of these receivers. With well chosen relative receiver dispositions, the position of a sound source at 20 km range can be located within + or - 150 m, even with fluctuations in travel time of as high as + or - 100 ms.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1985
Accession Number
ADA170253

Entities

People

  • Angelo Lombardi
  • Tor Knudsen

Organizations

  • SACLANT ASW Research Centre

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Computational Science
  • Computer Programs
  • Defense Planning
  • Errors
  • Governments
  • Mathematical Models
  • Models
  • Nato
  • Perturbations
  • Simulations
  • Simulators
  • Travel Time
  • Triangles
  • Uncertainty
  • Underwater Sound

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Computational Modeling and Simulation