A Rigorous Way of Incorporating Sea Surface Roughness Into the Parabolic Equation.

Abstract

A rigorous formulation of rough earth parabolic equation (PE) is given. The formulation is based on casting the governing transform equations in terms of incident and reflected plane waves and using the rough-surface reduction factor directly in the spectral domain. Solution is performed by the well known split-step algorithm. Inclusion of surface roughness into the PE in this manner requires a redefinition of the Fourier transform pair. Several examples are considered showing comparisons with waveguide and other models. (AN)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1995
Accession Number
ADA300263

Entities

People

  • Ramakrishna Janaswamy

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Department Of Defense
  • Engineering
  • Equations
  • Frequency
  • Grazing Angles
  • Marine Meteorology
  • Military Research
  • Omnidirectional Antennas
  • Physics Laboratories
  • Plane Waves
  • Reflection
  • Roughness
  • Surface Roughness
  • United States
  • Warfare
  • Waves

Fields of Study

  • Mathematics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Theoretical Analysis.
  • Wave Propagation and Nonlinear Chaotic Dynamics.