Multireceiver Acoustic Communications in Time-Varying Environments

Abstract

In this thesis, we present a two-receiver underwater acoustic communications system. It is based on the Kalman filter for equalization and tracking of acoustic channels characterized by considerable multipath. To model this channel and its dependency on the ocean environment we use the Bellhop acoustic ray tracing model. Error-correction coding is applied to the source data. Recursively updated channel estimates are used to update the state filters and tracking of the channel. It is shown that, under moderate conditions of Doppler shift and signal-to-noise (SNR) ratio, this algorithm is effective in tracking the channel and reconstructing the transmitted data.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2014
Accession Number
ADA606926

Entities

People

  • Murat Aydogmus

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

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

DTIC Thesaurus Topics

  • Acoustic Channels
  • Acoustic Communications
  • Acoustic Waves
  • Acoustics
  • Communication Channels
  • Communication Systems
  • Doppler Effect
  • Estimators
  • Information Systems
  • Kalman Filters
  • Modulation
  • Multiple Input Multiple Output
  • Network Science
  • Orthogonal Frequency Division Multiplexing
  • Ray Tracing
  • Underwater Acoustics
  • Wireless Communications

Fields of Study

  • Engineering

Readers

  • Acoustical Oceanography.
  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Radio communications and signal processing.