Influence of water vapor pressure fluctuations on the spectral density of millimeter wave amplitude scintillations in an absorption region

  • A. D. Sarma
  • R. S. Cole
Article
Received:

Abstract

Results are presented of scintillation spectra, measured at 54.5GHz on a 4.1 km line of sight path, when the variance of the water vapour pressure fluctuations (σe2) is very much greater than the variance of the temperature fluctuations (σT2). The effect of σe2 under these conditions is established both through the experimental results and the theoretical considerations which are also presented.

Key Words

millimetre wave propagation scintillation 
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References

  1. 1.
    Medeiros Filho F C, Jayasuriya D A R, Cole, R S and Helmis C G. “Spectral density of millimetre wave amplitude scintillations in an absorption region” IEEE Trans A P-31 pp 672–676 (1983)Google Scholar
  2. 2.
    Medeiros Filho F C, Jayasuriya D A R, Cole R S. “Tropospheric effects on line of sight links at 36GHz and 55GHz” IEE Proc. Part F,130 pp 679–687 (1983)Google Scholar
  3. 3.
    Ott R H, Thompson M C. “Atmospheric amplitude spectra in an absorption region” IEEE Trans AP-26 pp 329–332 (1978)Google Scholar
  4. 4.
    Jayasuriya D A R, Medeiros Filho F C, Cole R S “Scincillation fading in an absorption region” IEE Conf Publ No 195 pp 221–224 (1981)Google Scholar
  5. 5.
    D Tribble, Meteorological Research Unit, Cardingtion, Bedfordshire, England. Private communication.Google Scholar

Copyright information

© Plenum Publishing Corporation 1987

Authors and Affiliations

  • A. D. Sarma
    • 1
  • R. S. Cole
    • 1
  1. 1.Department of Electronic and Electrical EngineeringUniversity College LondonLondonEngland

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