FRAM IV Ambient Noise: (100 Hz-500 Hz) Data Analysis.

Abstract

Ambient noise from horizontal and vertical hydrophones collected during FRAMIV is examined in the 100 Hz to 500 Hz frequency region. Potential ambient noise generating mechanisms are reviewed. Characteristic signatures of distinguishable noise events heard during FRAM IV are cataloged. The ambient noise spectral levels atr 100 Hz, 200 Hz and 300 Hz are compared with the air temperature fluctuations over the 14 day period of the FRAM IV exercise.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1985
Accession Number
ADA174080

Entities

People

  • Laurie A. Gainey
  • Ruth E. Keenan

Organizations

  • Leidos

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Temperature
  • Ambient Noise
  • Analyzers
  • Background Noise
  • Bandwidth
  • Data Acquisition
  • Data Analysis
  • Data Processing
  • Digital Data
  • Dynamic Range
  • Frequency
  • Generators
  • Measurement
  • Recording Systems
  • Sonar
  • Temperature Gradients
  • Thermal Stresses

Fields of Study

  • Environmental science

Readers

  • Materials Science and Engineering.
  • Space/Atmospheric Physics.
  • Speech Processing/Speech Recognition.