Accession Number : AD0780623

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

Descriptive Note : Physical sciences research papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Fante,Ronald L.

Report Date : 08 MAR 1974

Pagination or Media Count : 23

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)

Descriptors :   *Light transmission, *Atmospheric motion, Wind, Turbulence, Frequency, Spectra

Subject Categories : Atmospheric Physics
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE