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    • Executive Summary
    • Glossary of Terms
    • Introduction
    • Basics of Deep Water Acoustic Positioning Systems
    • Operations
    • Associated Topics
    • Applications of Acoustic Positioning in Deep Water
    • References
    • Appendices
      • The Sonar Equation
      • Methods of Acoustic Positioning
      • Frequency
      • Spread Spectrum Techniques
      • Velocity of Sound
      • Acoustic Noise and Interference
      • Deep Water Acoustic Operations
    Date: Reason: Revision:
    Date:February 2024 Reason:Updating page 2, reference links and bookmarking, but no change to content Revision:Rev. 2.1
    Date:January 2017 Reason:Updated as part of the ongoing review of IMCA documentation Revision:Rev. 2
    Date:July 2014 Reason:Revised to reflect changes to technology and practice Revision:Rev. 1
    Date:October 2009 Reason:Initial publication Revision:Rev. 0