Underwater Ambient Noise. Proceedings of a Conference Held at SACLANTCEN on 11-14 May 1982. Volume 2. Unclassified Papers. Part 1

Abstract

Contents: BACKGROUND--Role of propagation in ambient noise; MECHANISMS--Acoustic source characteristics of merchant ships; Flow-noise interference in measurements of infrasonic ambient noise; LOW-FREQUENCY PHENOMENA--Low-frequency seismic and hydroacoustic noise measurements in a fjord; Seismic and hydroacoustic sensing of infrasonic noise in coastal waters; MEASUREMENTS AND MEASUREMENT TECHNIQUES--Le programme Ulysse; Arctic ambient noise statistical measurement results and their implications to sonar performance improvements; Acoustic ambient noise in the Barents Sea; Depth dependence of directionality of ambient noise in the North Pacific: experimental data and equipment design; Ambient noise levels in the northeast Pacific ocean as measured by aircraft-dropped sonobuoys; PROCESSING TECHNIQUES--A real-time system for towed-array calibration and performance analysis, or how to get 50 dB sidelobes from a towed array; Notes on the interpretation of ambient noise statistics.

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Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1982
Accession Number
ADA125323

Entities

People

  • Orest Z. Bluy
  • Ronald A. Wagstaff

Organizations

  • SACLANT ASW Research Centre

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Acoustics
  • Ambient Noise
  • Amplitude Modulation
  • Bandwidth
  • Boundary Layer
  • Computational Science
  • Databases
  • Detection
  • Frequency Bands
  • Information Processing
  • Information Science
  • Measurement
  • Oceanography
  • Repetition Rate
  • Seabed
  • Statistical Analysis
  • Surveys

Fields of Study

  • Environmental science

Readers

  • Acoustical Oceanography.
  • Acoustics.
  • Polar and Arctic Studies