Acoustic source localization-recent advances and remaining challenges

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

Abstract

In recent years some progresses have been made in acoustic source localization (ASL) in highly anisotropic plates when the plate material properties are not known. Some simplifying assumptions in many of the earlier source localization techniques that the wave propagates along a straight line from the source to the receiving sensor is not correct for many anisotropic plates. Wave energy in anisotropic solids generally propagate along curved lines and forms non-circular wave fronts. As a result, for highly anisotropic solids the acoustic source localization techniques that assume straight-line propagation of waves from the source to the receiver are bound to give erroneous results. In this paper earlier techniques as well as new developments for acoustic source localization in homogeneous isotropic and anisotropic plates are discussed. The newest source localization techniques in anisotropic plates analyze the non-circular shapes of the wave front. Following this analysis, the acoustic source has been successfully localized in some anisotropic plates without knowing the plate properties. Limitations of the current techniques that still exist and require further investigation are discussed.

Original languageEnglish (US)
Title of host publication2019 IEEE International Workshop on Metrology for AeroSpace, MetroAeroSpace 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages103-110
Number of pages8
ISBN (Electronic)9781728113449
DOIs
StatePublished - Jun 2019
Event5th IEEE International Workshop on Metrology for AeroSpace, MetroAeroSpace 2019 - Torino, Italy
Duration: Jun 19 2019Jun 21 2019

Publication series

Name2019 IEEE International Workshop on Metrology for AeroSpace, MetroAeroSpace 2019 - Proceedings

Conference

Conference5th IEEE International Workshop on Metrology for AeroSpace, MetroAeroSpace 2019
CountryItaly
CityTorino
Period6/19/196/21/19

Keywords

  • Acoustic source
  • Elastic wave
  • Source localization
  • Ultrasonic wave
  • Wave energy
  • Wave front
  • Wave propagation

ASJC Scopus subject areas

  • Aerospace Engineering
  • Control and Optimization
  • Instrumentation

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  • Cite this

    Kundu, T. (2019). Acoustic source localization-recent advances and remaining challenges. In 2019 IEEE International Workshop on Metrology for AeroSpace, MetroAeroSpace 2019 - Proceedings (pp. 103-110). [8869612] (2019 IEEE International Workshop on Metrology for AeroSpace, MetroAeroSpace 2019 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MetroAeroSpace.2019.8869612