Study of atmospheric attenuation on image quality assessment in FSO transmission operating at 850, 1064 and 1550 nm wavelengths

2023 International Conference on Advances in Electronics, Control and Communication Systems (ICAECCS) Pub Date : 2023-03-06 DOI:10.1109/ICAECCS56710.2023.10105131

Amina Djir, F. Meskine, M. Tayebi

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Abstract

Atmospheric attenuation has a significant impact on FSO communication technology since it is related to the visibility of different climatic conditions as well as operating wavelengths. This study investigates how operating wavelengths and visibility affect atmospheric attenuation for image transmission over free-space optical link under different weather conditions. From the obtained results, it has been observed that atmospheric attenuation changes when weather conditions and operating wavelengths change. For image transmission, it can be seen that the PSNR reaches its maximum value in clear weather at a distance of up to 5 km whatever the deploying wavelength. Whereas, it becomes wavelength-dependent and significantly decreases in hazy and foggy weather conditions. The results presented in this article clearly show that the wavelength of 1550 nm performs better in term of maximum link distance when an image is transmitted in free space optical communication under adverse climatic conditions.

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大气衰减对850、1064和1550 nm波段FSO传输图像质量评估的影响研究

由于大气衰减与不同气候条件下的能见度以及工作波长有关，因此对FSO通信技术具有重要影响。本文研究了不同天气条件下，工作波长和可见度对自由空间光链路图像传输的大气衰减的影响。从所得结果可以看出，大气衰减随天气条件和工作波长的变化而变化。对于图像传输，可以看出，无论部署波长如何，在晴朗天气下，PSNR在5公里的距离内达到最大值。然而，它与波长相关，在雾霾天气条件下显著降低。本文的结果清楚地表明，在恶劣的气候条件下，在自由空间光通信中传输图像时，波长1550 nm在最大链路距离方面表现更好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2023 International Conference on Advances in Electronics, Control and Communication Systems (ICAECCS)

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