Numerical Pulse Propagation Studies Using Two Classical Ocean Waveguide Models

Abstract

Numerical pulse propagation studies using two classical ocean waveguide models are performed. The first model is a pressure-release surface with a rigid bottom. The second model is a pressure-release surface with a fluid bottom. The analysis of the two models is based on normal mode theory assuming a constant speed of sound in the ocean. The magnitude and phase of the complex acoustic pressure field as a function of frequency is calculated across a planar array of hydrophones. The time-domain output electrical pulse from the center element in the array is also computed. The computer simulation results for the two models are compared and discussed. Keywords: Wave propagation; Ocean surface; Hydrophones; Ocean bottom; Theses; Equations of motion.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1989
Accession Number
ADA224118

Entities

People

  • Marinos P. Markopoulos

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Fields
  • Carrier Frequencies
  • Computer Programs
  • Computer Simulations
  • Computers
  • Continuous Waves
  • Engineering
  • Fluids
  • Frequency
  • Generators
  • Hydrophones
  • Notation
  • Schools
  • Security
  • Signal Generators
  • Simulations
  • Time Domain

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Coastal Oceanography
  • Optical Physics and Photonics.