夏季海域无线通信链路衰减系数的实验估计

G. A. Papavgeris, A. Stassinakis, H. Nistazakis, E. V. Chatzikontis, A. Tsigopoulos, V. Christofilakis
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引用次数: 1

摘要

地面自由空间光(FSO)链路可以实现非常高的性能特性,相对较低的运营成本和易于安装。然而,各种天气和大气现象的影响,如大气湍流、吸收和散射,降低了FSO的性能和可用性。这些现象是激光束强度快速波动的原因,这种波动可以通过适当的统计分布来模拟。本文通过提取一个评估链路衰减的实验模型,估算了海面上地面水平FSO系统的相对湿度、温度和风速与大气衰减因子的相关关系。FSO链路已安装在比雷埃夫斯港的入口处。将接收光功率的实验衰减系数与提取的经验模型进行比较,可以证明该模型的有效性。所得结果可用于设计和实现高性能、可靠的光或混合网络的光无线通信系统部分。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental Attenuation Coefficient Estimation for FSO Links over Maritime Area During Summer Time
Terrestrial free space optical (FSO) links can achieve very high performance characteristics with relative low operational cost and easy installation. However, the impact of various weather and atmospheric phenomena, such as atmospheric turbulence, absorption and scattering decrease the FSO performance and availability. These phenomena are responsible for rapid fluctuations of the intensity of the laser beam which can be modeled through the appropriate statistical distributions. In this work, the correlation between relative humidity, temperature and wind speed with the atmospheric attenuation factor of a terrestrial horizontal FSO system above the sea is estimated by extracting an experimental model for the evaluation of link’s attenuation. The FSO link has been installed at the entrance of the Piraeus Port. The comparison between the experimental attenuation coefficient of the optical power received and the extracted empirical model will prove the validity of the model. The obtained results can used for the design and implementation of optical wireless communication systems parts of high performance, reliable optical or hybrid networks.
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