Near-Field Acoustic Measurements Using a Line Array in Shallow Water

Abstract

Results are presented from a test conducted at the US Navy Acoustic Research Detachment in Bayview, Idaho during summers 2010 and 2011. A line of omnidirectional hydrophones was deployed from a barge. A series of test signals was transmitted through calibrated acoustic sources to evaluate the effectiveness of post-processing techniques, as well as line array beamforming, in minimizing reflected path contributions and improving signal-to-noise ratio. A method of estimating the location to the sources while taking into account a real, non linear array based on these measurements are presented.

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Document Details

Document Type
Technical Report
Publication Date
Dec 20, 2012
Accession Number
ADA583322

Entities

People

  • D. C. Barber
  • David L. Bradley

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Acoustic Measurement
  • Acoustics
  • Algorithms
  • Arrays
  • Deep Water
  • Equations
  • Far Field
  • Frequency
  • Frequency Domain
  • Geometry
  • Linear Arrays
  • Measurement
  • Near Field
  • Shallow Water
  • Three Dimensional
  • Water

Readers

  • Acoustical Oceanography.
  • Phased Array Antenna Design.