紫外光非视距单次散射链路模型的研究  

Research of Ultraviolet Non-Line-of-Sight Single Scattering Link Model

作　　者：何华[1] 柯熙政[1] 赵太飞[1] 

机构地区：[1]西安理工大学自动化与信息工程学院,陕西西安710048

出　　处：《光学学报》2010年第11期3148-3152,共5页Acta Optica Sinica

基　　金：国家863计划(2008AAJ159);国家自然科学基金(60977054);中国博士后科学基金(20080441179)资助课题

摘　　要：为了详尽而深刻地研究紫外光在大气中的非视距散射传输机制,以数学中的椭球坐标系为基础,分析了紫外光非视距单次散射链路模型中光子从发射端到接收端经历的散射过程及其间光子能量的变化;着重研究了与紫外光非视距散射通信密切相关的有效散射体的体积分,并对决定体积分的三组积分限进行了重点分析与计算,得到了各组积分限准确的取值公式。研究结果对紫外光的通信机制与接收能量给予了完整的分析与准确的定量,为将来实现紫外光通信的组网和进一步研究紫外光通信打下了坚实的基础。In order to profoundly study the mechanism of ultraviolet non-line-of-sight scattering transmission,based on ellipsoidal coordinate,the scattering process of photons from transmitter to receiver and energy change in the process are analysed;Furthermore,the study of the effective scattering volume integral is mainly inresthgated due to the dose relation with the ultraviolet communication,and the three groups of integral limits which determine the volume integral is analysed and calculated.Integral limit formulas of each group are achieved.The results give the integrated explaination and exact quantification of ultraviolet communication mechanism and receiving power.It builds a solid foundation for the ultraviolet network and the future study.

关 键 词：光通信 单次散射 非视距 椭球坐标系 有效散射体积 

分 类 号：TN929.12[电子电信—通信与信息系统]