Title :
Measurement and modelling of the probability density function of amplitude scintillations on an X-band satellite down-link
Author :
Moulsley, T.J. ; Haddon, J. ; Lo, P. ; Vilar, E.
Author_Institution :
Portsmouth Polytechnic, Department of Electrical & Electronic Engineering, Portsmouth, UK
Abstract :
The experimentally determined probabiliiy density function of the amplitude scintillations on an X-band satellite down-link is shown to depart significantly from the log-normal distribution for scintillations with amplitudes greater than ±0.15 dB, which occur on average for less than 5% of the time. This departure is explained in terms of a Gaussian process with a variable standard deviation, and the impact and use of this model is discussed.
Keywords :
microwave links; microwave measurement; modelling; radiowave propagation; satellite links; scintillation; Gaussian process; X-band satellite down-link; amplitude scintillations; log-normal distribution; modelling; probability density function measurement;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19810438
