Pointing Error in FSO Link under Different Weather Conditions
Pointing Error in FSO Link under Different Weather Conditions
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不同天气条件下FSO链路指向误差
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Mostafa H. Aly
中科院分区：
文献类型：
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作者：
Nazmi A. Mohammed;Amr S. El;Mostafa H. Aly
125401-8686 IJVIPNS-IJENS © February 2012 IJENS I J E N S摘要-指向误差是自由空间光通信面临的主要挑战之一，特别是在大范围链路上，指向误差影响其性能，本文对指向误差进行了实际误码率的评估。对1.55 μm波段不同天气条件下的FSO链路进行了计算。在实际仿真条件下，晴天时允许的最大指向误差可达13.53 μ rad，大雾天气条件下最差，小的指向误差可导致链路失效。
125401-8686 IJVIPNS-IJENS © February 2012 IJENS I J E N S Abstract— Pointing errors is one of the main challenges tha t face free space optical communication and affects i ts performance specially at high range links, in this paper, an ev aluation for the pointing error for practical Bit Error Rate is carr ied. This is done for an FSO link under different weather conditions at 1.55 μm. Under practical simulation conditions it was found that maximum pointing error allowed to achieve bit error rate for clear weather can reach 13.53 μ rad, Heavy fog is found to be the worst weather condition, where small pointing error can lead to link failure.