Comparison of exact and approximate FSO rain attenuation formulas based on actual DSD

0449620 - ÚFA 2016 RIV PT eng C - Konferenční příspěvek (zahraniční konf.)
Brázda, Vladimír - Fišer, Ondřej
Comparison of exact and approximate FSO rain attenuation formulas based on actual DSD.
EuCAP 2015 : 9th European Conference on Antennas and Propagation. Lisbon: IEEE Computer Society, 2015, Article number 7228735. ISBN 978-88-907018-5-6.
[European Conference on Antennas and Propagation (EuCAP) /9th/. Lisbon (PT), 13.05.2014-17.05.2015]
Institucionální podpora: RVO:68378289
Klíčová slova: free space optics * rain attenuation * videodistrometer * drop size distribution
Kód oboru RIV: DG - Vědy o atmosféře, meteorologie
http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=7228735&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel7%2F7209133%2F7228134%2F07228735.pdf%3Farnumber%3D7228735

This contribution deals with estimation of rain attenuation on free space optical (FSO) links. The approximative model recommended by ITU-R is compared with the exact solution using actual rain drop size distribution (DSD) measured in Prague by 2D video-distrometer. Results show that the error is non-negligible especially at rain rates higher than 15 mm/h due to rain spectrum variability. We produced the new power law model. However, we concluded, that another parameter representing DSD must be added when estimating the rain attenuation on FSO links.
Trvalý link: http://hdl.handle.net/11104/0253161