Fade and Interfade Duration Characteristics in a Slant-Path Ka-Band Link

Satellite-to-earth links are subject to several propagation effects in the troposphere, being rain attenuation the impairment that can cause the deepest fades. In this paper, the duration of both fades and the intervals between consecutive fades (interfade intervals) are characterized on the basis o...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2017-12, Vol.65 (12), p.7198-7206
Main Authors: Garcia-Rubia, Jose Miguel, Riera, Jose Manuel, Garcia-del-Pino, Pedro, Pimienta-del-Valle, Domingo, Siles, Gustavo A.
Format: Article
Language:English
Subjects:
Annual variations
Attenuation
Attenuation measurement
Communication satellites
fade duration
fade dynamics
interannual variability
Intervals
Mathematical models
Predictive models
Propagation
propagation measurements
Rain
rain attenuation
Receivers
Satellite broadcasting
satellite communication
Satellites
Statistics
Troposphere
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Summary:Satellite-to-earth links are subject to several propagation effects in the troposphere, being rain attenuation the impairment that can cause the deepest fades. In this paper, the duration of both fades and the intervals between consecutive fades (interfade intervals) are characterized on the basis of the results of a long-term slant-path Ka-band propagation experiment carried out in Madrid, Spain. The experimental and statistical results included in this paper correspond to seven complete years of measurements, a period large enough to characterize not only the average-year statistics of fade dynamics but also their variability, which is assessed on the basis of annual statistics of durations. The obtained average-year statistics of fade durations are in many cases close to the predictions made by the International Telecommunication Union-Radiocommunications and Communications Research Center Canada models, although the predictions could be improved with a better selection of the parameters of the distributions used in the models. Interfade duration statistics are also presented and related to recent modeling efforts. The interannual variability of statistics, such as the relative number of fades, is quantified and found to be low, except for the higher attenuation thresholds or the highest durations considered in this paper.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2017.2758839