Improvements to Passive Acoustic Tracking Methods for Marine Mammal Monitoring

Abstract

This project investigated and implement several methods to improve the accuracy, efficiency, and applicability of model based passive acoustic methods to track marine mammals. Methods were developed and tested that: 1) Invert for sound speed profiles, hydrophone position and hydrophone timing offset in addition to animal position. 2) Use improve maximization schemes in model-based tracking. 3) Use received sound pressure levels in addition to arrival times for tracking. This project also developed methods to simultaneously track multiple animals in cases where it is difficult/impossible to separate and associate calls from individual animals.

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Document Details

Document Type
Technical Report
Publication Date
May 02, 2016
Accession Number
AD1008476

Entities

People

  • Eva-Marie Nosal

Organizations

  • University of HawaiĘ»i System

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Tracking
  • Acoustics
  • Algorithms
  • Animals
  • Cetaceans
  • Detection
  • Directional
  • Mammals
  • Marine Mammals
  • Oceans
  • Odontocetes
  • Reflection
  • Signal Processing
  • Sound Pressure
  • Travel Time
  • Whales

Readers

  • Acoustical Oceanography.
  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Positioning, Navigation, and Timing (PNT) Technology.