Portable Multi-Hydrophone Array for Field and Laboratory Measurements of Odontocete Acoustic Signals DURIP

Abstract

The major long-term goal of this research is to build an array to measure the directionality of whistles and clicks produced by odontocetes so that there is verification of signals measured during passive acoustic monitoring. The specific objective of this study is to measure the outgoing signals of representative odontocetes so that the direction of travel and location of the animals can be better known for passive acoustic monitoring efforts. Our approach was to build the array from 15 transducers, to build the amplifier box to amplify the output from the transducers, and to construct programs to measure and compare outgoing clicks and whistles of bottlenose dolphins and false killer whales. We will measure and compare the signals from animals in fixed positions to determine the directionality of the signals and the change with directionality.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2013
Accession Number
ADA599979

Entities

People

  • Aude H. Pacini
  • Paul E. Nachtigall

Organizations

  • University of HawaiĘ»i System

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Acoustic Equipment
  • Acoustic Signals
  • Acoustics
  • Animals
  • Buildings And Structures
  • Electroacoustic Transducers
  • Hydrophones
  • Information Operations
  • Measurement
  • Monitoring
  • Odontocetes
  • Research Facilities
  • Transducers

Readers

  • Acoustical Oceanography.
  • Marine Mammal Biology