Review of Rain Attenuation Studies in Tropical and Equatorial Regions in Malaysia: An Overview
Autor: | K. Ulaganathen, Tharek Abdul Rahman, Rafiqul M. D. Islam, Sharul Kamal Abdul Rahim |
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Rok vydání: | 2013 |
Předmět: |
Attenuation
Tropics Microwave propagation Condensed Matter Physics Atmospheric sciences Physics::Geophysics law.invention law Physics::Space Physics Tropical climate Environmental science Electrical and Electronic Engineering Radar Frequency scaling Physics::Atmospheric and Oceanic Physics Reduction factor Microwave Remote sensing |
Zdroj: | IEEE Antennas and Propagation Magazine. 55:103-113 |
ISSN: | 1045-9243 |
DOI: | 10.1109/map.2013.6474490 |
Popis: | Rain is a major source of attenuation for microwave propagation above 10 GHz. In tropical and equatorial regions, the rain intensity is high. Therefore, designing terrestrial and Earth-to-satellite microwave links is very critical and challenging. The raindrop-size distribution and the rain-rate distribution are two important parameters used for attenuation prediction. Both are proposed based on measured data and the rain-rate conversion technique. In this paper, rain attenuation was directly measured at different frequencies for terrestrial and Earth-to-satellite links, in order to investigate prediction models. The reduction factor and frequency scaling were investigated and proposed to predict total attenuation. Worst-month and annual statistics were also analyzed, based on measurements. Moreover, this paper summarizes all contributions related to rain-caused attenuation for microwave propagation in Malaysia's tropical climate. |
Databáze: | OpenAIRE |
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