Advanced Propagation Model (APM) Analysis of VHF Signals in the Southern California Desert

Abstract

This report analyzes very high frequency signal strength data from two Naval Oceanic & Atmospheric Administration weather radio transmitters located in southern California and southwestern Arizona over a wide range of topography ranging from relatively flat to mountainous terrain. Meteorological information was obtained from local radiosonde measurement stations at Miramar (NKX) and Yuma Proving Ground (1Y7). These data are used as the basis for a validation study of the Advanced Propagation Model (APM) to determine its applicability for low-altitude mobile radio communications applications over terrain. The APM performs very well for low-altitude propagation over terrain and at least as well as the widely used diffraction model, Terrain Integrated Rough Earth Model (TIREM), under standard conditions. The APM performs better when variable refractivity data are available.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2006
Accession Number
ADA454045

Entities

People

  • A. E. Barrios
  • Ge. E. Lindem
  • K. D. Anderson

Organizations

  • Naval Information Warfare Systems Command

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • California
  • Department Of Defense
  • Dielectric Permittivity
  • Earth Models
  • Electromagnetic Wave Propagation
  • Elevation
  • Global Positioning Systems
  • Governments
  • Low Altitude
  • Measurement
  • Navigation
  • Radio Communications
  • Radio Transmitters
  • United States
  • United States Government
  • Weather Stations
  • World Geodetic System

Readers

  • Climatology
  • Computational Modeling and Simulation
  • Radar Systems Engineering.