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Feasibility of Littoral Imaging with a 3 Khz Synthetic Aperture Sonar

  • Stephen Celuzza
  • Philip Abbot
  • Charles Gedney
  • Brad Gillespie
  • Kenneth Rolt
Part of the Acoustical Imaging book series (ACIM, volume 23)

Abstract

The feasibility of using a 3 kHz surface ship bow sonar as a synthetic aperture sonar (SAS) for imaging targets in shallow water is presented. The study consists of modelling the environment with a time-varying ocean surface; a downward refracting sound velocity profile; and bottom roughness, penetration and scattering. Targets placed in the model include both a point target to simulate a mine and confirm imaging resolution, and an array of point targets to simulate the length extent of a submarine. The multipath returns were then processed by standard side-scan sonar (SSS) methods and SAS methods. Replica processing (matched filtering) was employed to improve imaging. Useful SAS imaging is shown.

Keywords

Global Position System Linear Frequency Modulate Ship Motion Differential Global Position System Sonar Image 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    K. Rolt and P. Abbot, Littoral coherence limitations of acoustic arrays, 23 rd International Symposium on Acoustical Imaging (1997).Google Scholar

Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Stephen Celuzza
    • 1
  • Philip Abbot
    • 1
  • Charles Gedney
    • 1
  • Brad Gillespie
    • 2
  • Kenneth Rolt
    • 2
  1. 1.Ocean Acoustical Services and Instrumentation Systems, Inc.LexingtonUSA
  2. 2.Sanders, a Lockheed Martin Company Advanced Systems DirectorateNashuaUSA

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