Analysis of Constant Phase Contours of Evaporation Duct Mode Functions for Waveguide Mode Propagation

Abstract

The M-Layer program tracks the constant phase lines Im(D(q)) = 0 and looks for their intersections with the lines Re(D(q)) = 0 for the locations of the zeros of the mode function D(q). These two types of constant phase lines are tracked and plotted over a search region which contains modes having a range attenuation rate of no more than 5 dB per km. Several new parameters for use in mode search are deduced from the results and some old ones are verified. Future studies is waveguide mode propagation theory pertaining to atmospheric ducts may benefit from this work. An improved mode search strategy is also proposed. Evaporation duct, Waveguide mode propagation.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1992
Accession Number
ADA257634

Entities

People

  • Jen-peng Che

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Classification
  • Computations
  • Computer Programs
  • Computers
  • Differential Equations
  • Electric Fields
  • Electrical Engineering
  • Electromagnetic Fields
  • Engineering
  • Equations
  • Evaporation
  • Magnetic Fields
  • Procedures (Computers)
  • Schools
  • Security
  • United States Naval Academy
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Sensor Fusion and Tracking Systems.
  • Wave Propagation and Nonlinear Chaotic Dynamics.