Vertical Directionality of Noise and Signal Transmissions During Operation Church Anchor

Abstract

A vertical array of 20 vibration isolated hydrophones was suspended from the Research Platform FLIP at various depths from 713m to 4816m. Preformed sets of beams were formed with a digital beamformer to observe the vertical noise distribution at three to four frequencies between 20 and 100 Hz. Directional spectra derived from 10 minutes samples of digital records are presented. Several contour plots of amplitude distributions are also shown for both signal and noise records.

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Document Details

Document Type
Technical Report
Publication Date
Nov 15, 1974
Accession Number
ADA011110

Entities

People

  • Victor C. Anderson

Organizations

  • Scripps Institution of Oceanography

Tags

Communities of Interest

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

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Arrays
  • Background Noise
  • California
  • Data Sets
  • Directional
  • Filters
  • Frequency
  • Instrumentation
  • Linear Arrays
  • Military Research
  • Naval Operations
  • Noise
  • Oceanography
  • Spectra
  • Tank Guns
  • Universities

Readers

  • Acoustical Oceanography.
  • Acoustics.
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.