LINE-OF-SIGHT PROPAGATION PHENOMENA

Abstract

Turbulent and precipitation conditions in the real atmosphere are considered in their effect on the line-ofsight propagation of electromagnetic waves. It is found that tropospheric scattering and phase scintillation mechanisms place an interesting limit on the accuracy with which one may determine the angular position of a distant radiator. Superposition of the same perturbed signals gives rise to waveform distortion in communication systems. Theoretical expressions for angular power distributions and phase error spectra are derived from phenomenological atmospheric models. Ray bending by cloud formations and rainstorms is also computed for representative weather conditions.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1956
Accession Number
AD0608010

Entities

People

  • Albert D. Wheelon
  • R. B. Muchmore

Organizations

  • TRW Inc.

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Angle Of Arrival
  • Boundary Layer
  • Communication Systems
  • Computational Science
  • Coordinate Systems
  • Dielectric Permittivity
  • Doppler Effect
  • Electromagnetic Radiation
  • Frequency
  • Geometry
  • Line Of Sight
  • Measurement
  • Radio Waves
  • Refraction
  • Refractive Index
  • Scattering
  • Waves

Fields of Study

  • Physics

Readers

  • Atmospheric Remote Sensing.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Radar Systems Engineering.