High Frequency Electromagnetic Propagation/Scattering

Abstract

Two directions of work have been pursued under this effort. The first direction is concerned with further extensions of our geometric techniques for spatial and surface ray tracing and applications of these techniques to problems in high-frequency electromagnetics. In addition, high-frequency physical optics methods were developed for accurate and efficient calculation 0 scattered fields due to currents in the penumbra region. The second direction is concerned with development of grid methods for capturing the motion of self-intersecting interfaces and related PDEs connected with propagation of high-frequency waves. In both directions significant progress has been achieved.

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Document Details

Document Type
Technical Report
Publication Date
Dec 16, 2000
Accession Number
ADA387862

Entities

People

  • Bjorn Engquist
  • Stanley Osher
  • Vladimir Oliker

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Algorithms
  • Computational Science
  • Computer Programs
  • Computer-Aided Design
  • Differential Equations
  • Diffraction
  • Electromagnetic Scattering
  • Equations
  • Far Field
  • Frequency
  • Geometry
  • Ray Tracing
  • Refraction
  • Scattering
  • Two Dimensional
  • Ultrasounds
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Space Exploration and Orbital Mechanics.
  • Technical Research and Report Writing.
  • Wave Propagation and Nonlinear Chaotic Dynamics.