目标探测中烟尘粒子对电磁信号的消光特性研究  

Study on the Extinction Characteristics of Soot Particles to Electromagnetic Signal in Target Detection

作　　者：黄朝军[1] 

机构地区：[1]陕西理工学院物理系,陕西汉中723001

出　　处：《装备环境工程》2008年第2期12-15,共4页Equipment Environmental Engineering

基　　金：陕西省自然科学基础研究计划项目(2006A15);陕西省教育厅专项科研计划基础项目(06JK326)

摘　　要：基于离散偶极子近似方法,计算了烟尘粒子的光学特性,得到了烟尘粒子的光学截面随入射角的变化关系,结合Muller散射矩阵,给出了不同入射角情况下烟尘粒子散射强度和极化度的角分布,为研究电磁信号在烟尘中的传输提供了一种理论方法。The optical characteristics of the soot particles were calculated with the discrete-dipole approximation method. The relationships between optical cross section of soot particles and the changing incident angles were analyzed combining with the Muller matrix. The distribution of scattering intensity and polarizability angle of soot particles with different incident angles was provided. The purpose was to provide a theoretical approach for the research of electromagnetic signal transmission in soot particles.

关 键 词：烟尘粒子 光学截面 散射强度 DDA 

分 类 号：O436.2[机械工程—光学工程]