Zobrazeno 1 - 10
of 61
pro vyhledávání: '"S. Ventouras"'
Publikováno v:
Geoscience Data Journal. 1:2-6
The GBS (Global Broadcast Service) dataset is a series of radio attenuation measurements made at three sites in the UK: Chilbolton and Sparsholt, both in southern UK, and Dundee in Scotland. The aim of the experiment was to make long term measurement
Autor:
John D. Kanellopoulos, S. Ventouras
Publikováno v:
Radio Science. 31:1435-1448
Knowledge of interference effects are of the utmost importance to the reliable design of satellite communication systems. In this paper interference caused by differential rain attenuation from an adjacent Earth-space system operating at the same fre
Publikováno v:
Journal of Electromagnetic Waves and Applications. 8:557-574
The main propagation effect on interference between a satellite system and an adjacent terrestrial path is considered to be the differential rain attenuation. In the present paper, a predictive method for the differential rain attenuation statistics
Publikováno v:
Radio Science. 28:1071-1086
Publikováno v:
Journal of Electromagnetic Waves and Applications. 7:1257-1270
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Publikováno v:
Radio Science. 43
[1] Earth-space radio systems operating at frequencies of 10 GHz and above are badly attenuated by rain, cloud, and atmospheric gases. As the frequencies of operational systems increase, it becomes increasingly uneconomic to compensate for the effect
Autor:
S. G. Koukoulas, S. Ventouras, Christos N. Capsalis, John D. Kanellopoulos, Nicolaos J. Kolliopoulos
Publikováno v:
Annales des Télécommunications. 45:437-451
Rain attenuation is considered to be a dominant factor affecting the reliability of both terrestrial and earth-to-satellite paths operating at frequencies above 10 GHz. The subject of the present paper is the development of some efficient models for
Autor:
S. Ventouras, John D. Kanellopoulos
Publikováno v:
3D Africon Conference. Africon '92 Proceedings (Cat. No.92CH3215).
A revised statistical model for evaluating the diversity performance of Earth-to-space radio links using the orbital diversity (OD) technique is discussed. The present method includes the more complicated but practical unbalanced diversity case. The
Publikováno v:
Twelfth International Conference on Antennas and Propagation (ICAP 2003).
We have shown that measurements of atmospheric loss along a slant path provide information that is vital to system designers striving to maximise the performance to be obtained from communication systems operating at Ka-band and V-band frequencies. T