基于不同散射相函数的紫外光传输特性研究  

Characteristics of Ultraviolet Transmission Based on Different Scattering Phase Functions

作　　者：巩稼民[1] 姜小波[1] 李晨[1] 孟令贺[1] 杨萌[1] 

机构地区：[1]西安邮电大学电子工程学院,西安710121

出　　处：《半导体光电》2015年第6期954-958,共5页Semiconductor Optoelectronics

基　　金：西安邮电大学研究生创新基金项目(ZL2013-11;ZL2013-14)

摘　　要：为了研究三种不同散射相函数下紫外光大气传输特性,文章采用非直视紫外光通信的单次散射简化模型,对系统接收机接收到的能量及紫外光传输路径损耗随传输距离和散射角的变化情况进行分析。结果表明:三种相函数下,都表现为随传输距离的增大,接收能量减小,路径损耗增大,但三者之间存在一定的差异,对于紫外光通信系统,其传输性能的影响以前向散射为主,后向散射作用很小;随着散射角增大,后向散射作用相对明显;三种散射相函数下,紫外光通信链路的最佳散射角不同,但均随发射仰角的增大或接收仰角的增大最佳散射角增大,而接收能量减小。In order to study the characteristics of UV atmosphere transmission based on three different scattering phase functions,using the single scattering channel simplified model of non-line-of-sight UV communication simulation,the receiving energy change and the path loss of the UV transmission varing with the change of the transmission distance and scattering angle were analyzed.The results show based on the UV communication system based on all the three scattering phase functions present such a trend as with the increasing transmission distance,the receiving energy decreases and the path loss increases,while there are some differences among the three indexes.For UV communication system,forward scattering is the main factor affecting its transmission performance.However as the scattering angle increases,the backscattering effect becomes more obvious.The optimal scattering angle of ultraviolet communication link is different for the three scattering functions,but the received energy decreases with the increase of the launching elevation angle and the receiving elevation angle.

关 键 词：紫外光通信 散射相函数 路径损耗 能量 散射角 

分 类 号：TN929.12[电子电信—通信与信息系统]