A Detailed Study of Sonar Tomographic Imaging

Abstract

Sonar tomography is a technique to obtain a two-dimensional image of an underwater object using a sequence of one-dimensional images, or `projections', of the object of interest. We discuss sonar tomography in a detailed manner and compare the performance of two important `back-projection algorithms' commonly used in tomography. The two processing techniques are applied to the imaging of relatively small underwater objects using high sonar frequencies, making use of simulated and experimental data. We also discuss system requirements, as well as the similarities and differences with radar applications. Ultimately, the performance of this underwater object imaging technique is determined by the availability of sufficiently high resolution projections and/or sufficient coverage in object aspect.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2013
Accession Number
ADA591996

Entities

People

  • Bang Le-Huy Nguyen
  • H. T. Tran
  • R. Melino
  • S. Wood

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Properties
  • Acoustic Tomography
  • Acoustics
  • Cartesian Coordinates
  • Compression
  • Data Sets
  • Experimental Data
  • Measurement
  • Models
  • Pulse Compression
  • Reflection
  • Sampling
  • Scattering
  • Sonar Targets
  • Transducers
  • Two Dimensional
  • Water Tanks

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Image Processing and Computer Vision.