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电信和无线电工程
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN 打印: 0040-2508
ISSN 在线: 1943-6009

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电信和无线电工程

DOI: 10.1615/TelecomRadEng.v71.i20.60
pages 1889-1896

MILLIMETER AND SUBMILLIMETER WAVE ATTENUATION IN RAINS CONSIDERING SMALL DROPLETS IN RAIN DROP SIZE DISTRIBUTION

Yu. I. Malyshenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkov 61085
A. N. Roenko
O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkiv 61085, Ukraine

ABSTRACT

It is shown that most of probability density distributions of rain drop sizes, widely used in calculations of rain attenuation statistics for microwave radar and communication systems, describe the real quantity of the rain small droplets rather inaccurately. New more adequate distribution function, which takes into account small droplets, is proposed for the short-wave domains of mm and THz bands. Taking into account the new distribution the radiation attenuation in rains of different intensity is calculated.


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