IMPULSE: A Code for High-Resolution Impulse Response Functions in Range-Dependent Ducts.

Abstract

A computer code is reported which calculated the impulse response for long-range acoustic paths in SOFAR (Sound Fixing and Ranging) channels. Surface and bottom reflections are included. A single sound speed profile is treated and the bottom depth is allowed to be range-dependent. The impulse response is calculated from geometrical ray theory. It included transmission loss, travel time, arrival angle, and bottom loss. The source may be located on the upper or lower boundary. Originator-supplied keywords include: Acoustics, SOFAR, Range-dependent ducts, Impulse response, and Ray-tracing.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1984
Accession Number
ADA152166

Entities

People

  • J. Northrop
  • R. C. Shockley

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustics
  • Bottom Loss
  • Computational Fluid Dynamics
  • Computational Science
  • Geometry
  • Losses
  • North Pacific Ocean
  • Pacific Ocean
  • Phase Velocity
  • Plastic Explosives
  • Reflection
  • Refraction
  • Refractive Index
  • Three Dimensional
  • Transmission Loss
  • Two Dimensional
  • Underwater Sound

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Explosive Engineering.