Ambient Noise Statistics for Sonar Modelling - Final Report

Abstract

This report documents the work done to process EC-SWAN sonobuoy data collected monthly over a 12-month period in late 1995 and 1996. Nine or more sonobuoys were dropped at each of four sites, and included calibrated Low Frequency Analysis and Ranging (LOFAR), Vertical Line Array (VLA) and Directional Frequency Analyzing and Recording (DIFAR) types. The data were processed to determine statistics for use in synthetic sonar data modelling. The data were processed using 8K Fast Fourier Transforms (FFT) and ^4 second incoherent averages. The data sample rate was 6147.5 Hz. Statistics were then computed for five-minute blocks, and averaged to determine the mean statistic over the one-hour sample time. These data are intended to provide a characterization of the probability density functions for ambient noise in Canadian waters that can be used for input to sonar simulation software.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2005
Accession Number
ADA437655

Entities

People

  • Cory Macmichael
  • Joe Hood

Organizations

  • MDA Ltd.

Tags

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  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Ambient Noise
  • C Programming Language
  • Computer Programming
  • Computers
  • Data Analysis
  • Data Modeling
  • Data Processing
  • Data Sets
  • Graphical User Interface
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  • Information Science
  • Probability
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  • Statistical Analysis
  • Statistics
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  • Acoustical Oceanography.
  • Approximation Theory.
  • Mathematics or Statistics