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In this paper, we present the experimental results forfree space optics (FSO) communication systems operating at visible and near infrared wavelengths (from 0.6 μm to 1.6 μm) under fog conditions. Different empirical fog models are typically used to characterize the fog attenuation of optical beam in FSO systems. A number of empirical fog models are evaluated in order to verify them experimentally...
This contribution is focused on experimental results derived from our dual wave length experimental FSO link attenuation measurement. The used wavelengths are 830 nm and 1550 nm while the path length being 60 m. This link is located at the “Milesovka” hill (837 m.a.s.l) situated 70 km north to Prague. This study is dealing step by step with fog attenuation, attenuation due to wind turbulences (i.e...
The Institute of Atmospheric Physics in Prague is performing research of FSO signal propagation. This study is concerning the fog impact on signal attenuation. It compares three formulas estimating fog attenuation from visibility. Special sight is given to usage of two visibility sensor data. It is shown that their combination slightly improves the fog attenuation estimation. It was experimentally...
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