Frequency Spectrum of Optical Waves Propagating in a Moving Turbulent Atmosphere.

Abstract

The authors have calculated the frequency spectrum of plane waves and beams propagating in a moving turbulent atmosphere. Both the case when the atmosphere moves with a constant wind and the case when the wind velocity is distributed according to a gaussian centered about some average velocity is considered. The results indicate that for small propagation distances, the frequency spectrum behaves as omega sup -8/3 for large frequency, omega; for large propagation distances, the spectrum is broadened with increasing distance-with the broadening dependent upon the beam parameters and the wind velocity. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 08, 1974
Accession Number
AD0780623

Entities

People

  • Ronald L. Fante

Organizations

  • Air Force Cambridge Research Laboratories

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Atmospheres
  • Frequency
  • Frequency Shift
  • Plane Waves
  • Spectra
  • Waves
  • Wind
  • Wind Velocity

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Microwave Engineering.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers