Synthetic Ocean Waveforms for Testing Sonobuoy Suspensions

Abstract

Four synthetic ocean waveforms are proposed for the testing of sonobuoy suspension devices. They are based on the Bretschneider ocean wave spectrum, with significant waveheights chosen from the sea state code of the World Meteorological Organization (WMO) and corresponding peak periods based on statistical data from the Canadian North Atlantic Ocean in winter conditions. The waveforms are presented as sums of 20 sine-wave components of specified frequency, amplitude, and phase. There is one waveform each for WMO sea states 3, 4, 5, and 6, corresponding to significant waveheights of 1.25 m, 2.5 m, 4 m, and 6 m, respectively; the associated peak periods are 9 s, 10 s, 12 s, and 14 s, respectively. The maximum and minimum frequencies for each waveform are chosen to bracket 98% of the wave energy. All the information required to generate the waveforms is provided; waveform plots and numerical values at 0.5 s intervals are included for checking purposes.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1990
Accession Number
ADA233144

Entities

People

  • David M. Chapman

Organizations

  • Defence Research and Development Canada

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Abstracts
  • Acoustic Detectors
  • Amplitude
  • Atlantic Ocean
  • Data Science
  • Frequency
  • Information Science
  • North Atlantic Ocean
  • Ocean Waves
  • Oceans
  • Sine Waves
  • Sonobuoys
  • Spectra
  • Statistical Data
  • Statistics
  • Wave Power
  • Waves

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Image Processing and Computer Vision.
  • Oceanography.