Tests of wind parameters as predictors of free space optic link attenuation

O. Fiser, V. Brazda, V. Schejbal
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Abstract

Institute of Atmospheric Physics has measured in cooperation with University of Pardubice atmospheric attenuation on experimental FSO link on 830 and 1550 nm for 4 years. Experimental site is located at meteorological observatory on the isolated mountain with frequent fog, low clouds and strong wind occurrence. Measured attenuation is correlated with the mean horizontal wind speed, mean 3D wind speed, turbulence intensity, turbulent energy, standard deviation of the wind speed and the highest wind gust. Simple empirical models estimating attenuation of FSO link from wind parameters are formulated and verified through our experimental activity.
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风参数作为自由空间光链路衰减预测因子的试验
大气物理研究所与法国帕尔杜比采大学合作,在830和1550 nm波段的实验FSO链路上进行了4年的大气衰减测量。实验场地位于大雾、低云、大风频发的孤山气象台。测量到的衰减与平均水平风速、平均三维风速、湍流强度、湍流能量、风速标准差和最高阵风相关。建立了基于风参数估计FSO链路衰减的简单经验模型,并通过实验进行了验证。
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