Performance Analysis of Laser Communication System Under Sand-dust Channel

被引：0
|
作者：
Cao M.-H. [1 ]
Yao Y. [2 ]
Song L.-H. [1 ]
Wang H.-Q. [1 ]
机构：
[1] School of Computer & Communication, Lanzhou University of Technology, Lanzhou
[2] State Grid Lanzhou Electric Power Supply Company, Lanzhou
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2019年 / 40卷 / 05期
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
Complex permittivity; Laser attenuation; Sand-dust channel; Transmission performance;
D O I：
10.3788/fgxb20194005.0659
中图分类号：
学科分类号：
摘要：
The scattering and absorption caused by sand-dust channel will lead to serious attenuation of the laser signals. By considering the characteristics of the sand-dust particle radius distribution and the effects of sand-dust moisture content, the impact of sand-dust on the attenuation characteristics of laser signal is investigated and the expression of signal-to-noise ratio at the receiving end is proposed. Moreover, the bit error rate and channel capacity under sand-dust weather are deduced for the OOK modulation. Furthermore, the effects of atmospheric visibility, transmission distance, sand-dust moisture content and laser wavelength on the bit error rate and channel capacity are simulated. The results show that the channel capacity and system BER performance decrease with the increase of sand-dust moisture content, transmission distance and the decrease of atmospheric visibility. When the atmospheric visibility is 4 km, the system bit error rate achieves 10-2 orders of magnitude with a wavelength of 1 550 nm and a transmission distance of 1 km and the normalized channel capacity is up to 8.48 bps/Hz. © 2019, Science Press. All right reserved.
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页码：659 / 665
页数：6
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