Accession Number:

ADA248061

Title:

Analysis of Electromagnetic Propagation Over Variable Terrain Using the Parabolic Wave Equation

Descriptive Note:

Final rept. Oct 1989-Oct 1991

Corporate Author:

NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA

Personal Author(s):

Report Date:

1991-10-01

Pagination or Media Count:

45.0

Abstract:

This report describes the fundamental physics and basic numerical algorithms that form the basis of a range-dependent microwave propagation model. The model accounts for the effects of nonhomogeneous atmospheric refractivity fields, finite surface conductivity and variable surface terrain elevation. Both vertical and horizontal field polarization and general antenna radiation patterns are included in the analysis. The electromagnetic field propagation is modeled using the splitstep Fourier parabolic wave equation SSFPE algorithm, modified to account for an impedance-type boundary condition. The various approximations used in developing the SSFPE algorithm are discussed, along with local and global error estimates. Parabolic wave equation, Microwave propagation, Variable terrain microwave propagation, Pattern propagation factor.

Subject Categories:

  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE