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应用科学学报 >

2012 , Vol. 30 >Issue 3: 245 - 250

DOI: https://doi.org/10.3969/j.issn.0255-8297.2012.03.005

论文

紫外光通信中的Mie 散射机制

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  • 西安理工大学自动化与信息工程学院，西安710048
何华，博士生，研究方向：紫外光通信，E-mail: hantwoxin@hotmail.com；柯熙政，教授，博导，研究方向：大气激光通信及信号处理，E-mail: xzke@263.net

收稿日期: 2010-11-05

  修回日期: 2011-03-08

  网络出版日期: 2012-05-30

基金资助

国家自然科学基金（No.60977054）资助

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Mie Scattering in Ultraviolet Communication

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  • Automation and Information School, Xi’an University of Technology, Xi’an 710048, China

Received date: 2010-11-05

  Revised date: 2011-03-08

  Online published: 2012-05-30

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摘要

 气溶胶粒子对紫外光产生的Mie 散射作用是紫外光非视距通信的基础. 该文以Mie 散射理论为基础，推导Mie 散射系数与Mie 角散射系数的递推公式，并利用递推公式计算日盲波段紫外光的Mie 散射相函数. 通过对紫外光Mie 散射相函数的计算可知，随着散射粒子半径的增大，散射粒子对紫外光的前后向散射增强. 在其他散射角度上，散射强度随着粒子的增大而减小，且比前后向散射强度微弱得多，散射粒子越大，散射强度衰减越剧烈.

关键词： 紫外光通信; Mie 散射; 相函数

本文引用格式

何华， 柯熙政 . 紫外光通信中的Mie 散射机制[J]. 应用科学学报, 2012 , 30(3) : 245 -250 . DOI: 10.3969/j.issn.0255-8297.2012.03.005

Abstract

Aerosols contributes much to the ultraviolet non-line-of-sight communication. Based on the Mie theory, this paper derives recurrence functions of Mie scattering coefficient and angle scattering coefficient, and uses the recurrence functions to compute the ultraviolet scattering phrase function. The results show that the larger the scattering particle radius, the stronger the forward and backward scattering effects. When scattering particles are smaller, ultraviolet forward scattering is weaker than back scattering, and the range of phrase function is not large. However, when scattering particles become larger, the ultraviolet forward scattering is much stronger than scattering in the backward and other directions.

 

Key words： ultraviolet communication; Mie scattering; phrase function

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