Bandwidth Optimization of Underwater Acoustic Communications Systems

Abstract

Current underwater acoustic communication systems operate in the frequency band of 1 - 10 kHz and utilize various forms of signal processing to improve data rates. In this work, the influence of the environment on long-range propagation of acoustic signals will be examined over the band of 1-5 kHz. The transmission loss (Th) as a function of range over the bandwidth will be one measure to determine the optimal operating character of the communications channel. Additionally, estimates of signal variance over the bandwidth as a function of range will be computed. The variance will be generated from source platform motion and interface roughness. Particular attention will be paid to the 2 - 4 kHz band of certain operating systems for long-range transmission

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2001
Accession Number
ADA391477

Entities

People

  • Jack E. Houdeshell

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Communications
  • Bandwidth
  • Communication Channels
  • Communication Systems
  • Cross Correlation
  • Doppler Effect
  • Electromagnetic Radiation
  • Environment
  • Frequency
  • Frequency Bands
  • Losses
  • Operating Systems
  • Roughness
  • Scattering
  • Signal Processing
  • Transmission Loss
  • Underwater Acoustic Communications

Readers

  • Acoustical Oceanography.
  • Statistical inference.