Effective Dielectric Constants of Foliage Media

Abstract

The output from a model that calculates the effects of multiple scattering processes that influence the scattering and absorption of electromagnetic radiation by dense foliage is presented. Results are presented as effective dielectric constants which can be used to represent the forest environment as a homogeneous dielectric slab in electromagnetic scattering models. An objective of this report is to present a formalism that allows the reader to incorporate the results into a simulation program. Several models of multiple scattering processes in the foliage media are considered for determining the effective parameters. A brief discussion of the Average T-Matrix Approximation (ATA) and the Coherent Potential Approximation (CPA) are presented. Keywords: Foliage scattering, EM Wave propagation, Effective dielectric, Radar clutter, Dielectric constant.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1990
Accession Number
ADA226296

Entities

People

  • Douglas Tomasanis

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Command And Control
  • Composite Materials
  • Dielectric Permittivity
  • Dielectric Properties
  • Electric Fields
  • Electrical Properties
  • Electromagnetic Radiation
  • Electromagnetic Scattering
  • Experimental Data
  • Moisture Content
  • Physical Properties
  • Quantum Yields
  • Radar Clutter
  • Radiation
  • Radio Waves
  • Scattering
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Pulsed Power and Plasma Physics.
  • Wave Propagation and Nonlinear Chaotic Dynamics.