光波在沙尘介质中传输的分析

doi:10.3969/j.issn.0255-8297.2014.06.005

应用科学学报 ›› 2014, Vol. 32 ›› Issue (6): 577-581.doi: 10.3969/j.issn.0255-8297.2014.06.005

光波在沙尘介质中传输的分析

朱耀麟1,2，安然1

1. 西安工程大学电子信息学院，西安710048
2. 西安理工大学自动化与信息工程学院，西安710048

收稿日期:2013-06-26 修回日期:2013-12-19 出版日期:2014-11-28 发布日期:2013-12-19
作者简介:作者简介：朱耀麟，博士后，副教授，研究方向：通信信号处理、无线光通信、多天线传输系统，E-mail：fz_zyl@163.com
基金资助:
陕西省科技厅国际合作项目基金(No.2013KW04-02)；西安市科技局技术转移促进工程基金(No.CXY1349(2))资助

Laser Transmit through Sand and Dust

ZHU Yao-lin1,2, AN Ran1

1. Electronic Information College, Xi’an Polytechnic University, Xi’an 710048, China
2. The Faculty of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, China

Received:2013-06-26 Revised:2013-12-19 Online:2014-11-28 Published:2013-12-19

摘要/Abstract

摘要： 在实际沙尘暴传输过程观测中，发现粒子杂质含量不断增加，且光信号衰减量随高度增加而减小. 针对这一情况，应用Mie 理论得到了含水量占50% 且硫酸盐含量不断增加时，单个沙尘粒子的吸收、散射和衰减效率因子随粒子尺度参数的变化，沙尘群体的吸收和散射系数随波长变化以及沙尘群体的衰减系数与峰值半径之间的关系. 仿真数值显示：随着硫酸盐含量的增加，单个沙尘粒子的吸收效率因子不断增加，散射效率因子不断减小，总的衰减效率因子变化不大；沙尘粒子群体的光学特征与单个粒子的相同，峰值半径变化时衰减系数的变化比较明显；随高度的增加，沙尘的衰减系数逐渐减小.

关键词: 光通信, Mie散射, 沙尘尺寸分布, 衰减效率因子

Abstract: By observing laser transmission in sandstorm, it is found that attention decreases with increasing
height and particle impurity. Consider the condition that moisture reaches 50% and the sulfate content is
increased in sand/dust particles. Applying the Mie theory, the relationship between the particle scale and
parameters including absorption, scattering and attenuation efficiency factors of single sand/dust particles is
obtained. Also obtained are the changes in absorption and scattering coefficients of sand/dust group with
different light wavelengths, and the relationship between the attenuation coefficient and the peak radius of the
sand/dust group. The results show that, as water and sulfate content increase, the absorption efficiency factor
increases, scattering efficiency factor decreases, and the total attenuation efficiency factor changes very little.
Optical characteristic of the sand/dust group is the same with signal particles. With changing peak radius,
the attenuation coefficient varies obviously. The attenuation coefficient decreases gradually when the height of
sand/dust aerosol increases.

Key words: optical communications, Mie theory, sand and dust spectrum, attenuation efficiency factor

中图分类号:

TN929.1

朱耀麟1,2，安然1. 光波在沙尘介质中传输的分析[J]. 应用科学学报, 2014, 32(6): 577-581.

ZHU Yao-lin1,2, AN Ran1. Laser Transmit through Sand and Dust[J]. Journal of Applied Sciences, 2014, 32(6): 577-581.

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光波在沙尘介质中传输的分析

Laser Transmit through Sand and Dust

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