Acoustic source localization

Research output: Contribution to journalReview articlepeer-review

167 Scopus citations

Abstract

In this article different techniques for localizing acoustic sources are described and the advantages/disadvantages of these techniques are discussed. Some source localization techniques are restricted to isotropic structures while other methods can be applied to anisotropic structures as well. Some techniques require precise knowledge of the direction dependent velocity profiles in the anisotropic body while other techniques do not require that knowledge. Some methods require accurate values of the time of arrival of the acoustic waves at the receivers while other techniques can function without that information. Published papers introducing various techniques emphasize the advantages of the introduced techniques while ignoring and often not mentioning the limitations and weaknesses of the new techniques. What is lacking in the literature is a comprehensive review and comparison of the available techniques; this article attempts to do that. After reviewing various techniques the paper concludes which source localization technique should be most effective for what type of structure and what the current research needs are.

Original languageEnglish (US)
Pages (from-to)25-38
Number of pages14
JournalUltrasonics
Volume54
Issue number1
DOIs
StatePublished - Jan 1 2014

Keywords

  • Acoustic emission
  • Guided wave
  • Lamb wave Optimization
  • Source localization

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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