Signal Processing for the 1992 Barents Sea Tomography Experiment

Abstract

In August 1992, an acoustic tomography experiment was conducted in the Barents Sea. The objective of this thesis is the development of space-time signal processing algorithms to extract the arrival times of rays and modes for that experiment. The temporal signal processing involves pulse compression of the phase-encoded signal. Spatial signal processing consists of plane wave and modal beamforming on data fram a 16 element vertical line array. After signal processing an arrival detection, identification, and tracking algorithm is used to obtain travel time and travel time error estimates. After development and testing of these algorithms, 13 hours of acoustic data was processed for rays and eight hours of data was processed for modes. The resultant travel time information is then available for inversion to sound speed maps.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1993
Accession Number
ADA278580

Entities

People

  • Philip G. Mclaughlin

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Signals
  • Acoustic Tomography
  • Acoustics
  • Algorithms
  • Detection
  • Electrical Engineering
  • Engineering
  • Identification
  • Physics Laboratories
  • Plane Waves
  • Pulse Compression
  • Signal Processing
  • Time Signals
  • Travel Time
  • United States Naval Academy
  • Waves

Readers

  • Phased Array Antenna Design.
  • Speech Processing/Speech Recognition.
  • Wave Propagation and Nonlinear Chaotic Dynamics.

Technology Areas

  • Space