ITU-R total attenuation predictions in comparison with slant path measurements in southern England

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ITU-R total attenuation predictions in comparison with slant path measurements in southern England

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© IEE
Published

A simple method to obtain the total attenuation statistics from the statistics of different attenuation effects (gases, clouds, rain) is proposed and tested against measured data along with the current ITU-R methods. The new method based on a rigorous mathematical foundation and experimental observation gives a good agreement with experimental data and highlights the impact of atmospheric gases, cloud and light rain on earth-space systems operating at higher frequencies (Ka/V-band).

Inspec keywords: microwave propagation; electromagnetic wave absorption; satellite links; tropospheric electromagnetic wave propagation; millimetre wave propagation; rain; statistical analysis; clouds

Other keywords: southern England; 39.6 GHz; 49.5 GHz; atmospheric gases; rain attenuation; Ka-band; geostationary satellite; slant path measurements; ITALSAT; V-band; total attenuation statistics; earth-space systems; 18.7 GHz; ITU-R methods; cloud attenuation

Subjects: Electromagnetic wave propagation and interactions in the lower atmosphere; Radiowave propagation

References

    1. 1)
      • A. Papoulis . (1991) Probability, random variables and stochastic processes.
    2. 2)
      • Ventouras, S., Wrench, C.L., Long, D.H.: `Investigation of the effects of rain and cloud on EHF Satcom links', 8th URSI Commission F Triennial Open Symp., 1998, Portugal, p. 284–287.
    3. 3)
      • ITU-R Document 3M/38 ANNEX 10, 17 July 2001, pp 91–97..
    4. 4)
      • Ventouras, S., Wrench, C.L., Callaghan, S.A.: `New thinking required to offset limitations imposed by V-band propagation', 19th AIAA Int. Communication Satellite Systems Conf. and Exhib., 2001, France.
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