Ice-Tethered Acoustic Buoys for Real-Time Acoustic Monitoring, Navigation, and Communication Through the Beaufort Lens

Abstract

Ice-Tethered Acoustic Buoys (ITABs) are developed in the NRL Acoustic Division to be used as a real-time acoustic monitoring system for environmental characterization, acoustic navigation, and acoustic communication. During April 2021, five ITABs were deployed in the Beaufort Sea to conduct an under-ice acoustic propagation experiment in the 900-1000 Hz frequency band. Reciprocal transmission data were collected until September 2021, covering different ice-concentration periods. Ambient noise measurements were also accomplished in the Arctic using a passive ITAB, deployed during the Navy's ICEX 2022 expedition. Both active and passive experiments showed that ITABs can be used for long-range, under-ice, real-time acoustic monitoring, navigation, and communication as well as real-time ambient noise measurements in the Western Arctic.

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Document Details

Document Type
Technical Report
Publication Date
Feb 24, 2023
Accession Number
AD1194132

Entities

People

  • Altan Turgut
  • Jeffrey A. Schindall

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Space

DTIC Thesaurus Topics

  • Acoustic Communications
  • Acoustic Navigation
  • Acoustic Propagation
  • Acoustic Signals
  • Acoustics
  • Ambient Noise
  • Bandwidth
  • Beaufort Sea
  • Coverings
  • Data Sets
  • Frequency
  • Frequency Bands
  • Hydrophones
  • Measurement
  • Military Research
  • Monitoring
  • Navigation
  • Noise
  • Oceans
  • Water

Readers

  • Acoustics.
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Polar and Arctic Studies