Tuesday, June 2

Parabolic Equation Techniques

3:45 PM-5:45 PM
Room 244
(This session will run until 6:15 PM).

Parabolic equation (PE) techniques provide efficient numerical solutions for a variety of wave propagation problems. The wave equation is approximately factorized into two parabolic terms which can then be solved by marching techniques, requiring far less computing resources than the original elliptic equation. The techniques can be applied to underwater acoustics, radiowave propagation in the atmosphere, seismics, optics and electromagnetic scattering. The minisymposium is intended to give non-specialists an overview of what is achievable today, and to provide specialists with an update on recent progress.

The speakers will discuss X-ray optics, radiowave propagation, scattering by rough surfaces and electromagnetic scattering from 3-dimensional objects.

Organizer: Mireille F. Levy
Rutherford Appleton Laboratory, United Kingdom

3:45 A Review of the Development of the Parabolic Equation Split-Step Fourier Transform Method for Electromagnetic Propagation in the Troposphere
James R. Kuttler and G. D. Dockery, Johns Hopkins University
4:15 Parabolic Equation Techniques for X-ray Optics
Alexei V. Popov and Yu. V. Kopylov, Russian Academy of Sciences, Russia; A. V. Vinogradov, Lebedev Physics Institute, Russia; and D. T. Attwood, Lawrence Berkeley Laboratory
4:45 Rough Surface Scattering Using Forward Marching Methods
Charles L. Rino, Vista Research, Inc., Mountain View, California
5:15 Electromagnetic Scattering with PE Techniques
Mireille F. Levy, Organizer; and Andrew A. Zaporozhets, Rutherford Appleton Laboratory, United Kingdom
5:45 Non-Local Boundary Conditions for 1-Way Wave Propagation
David J. Thomson, Defence Research Establishment Atlantic, Canada; and Gary H. Brooke, Integrated Performance Decisions, Canada

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MMD, 12/17/97