Research of diversity receiving in wireless laser communications  

作　　者：柯熙政 张彤 

机构地区：[1]The Faculty of Automation&Information Engineering,Xi’an University of Technology

出　　处：《Optoelectronics Letters》2014年第4期285-289,共5页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.61377080 and 60977054);Shaanxi Province"13115"Science and Technology Planning Support(No.2011KTCQ01-31);Education Department of Shaanxi Province Industrialization Development Fund(No.2010JC17);Xi'an Science and Technology Achievement Transformation Fund(No.CX12165);Supported by Natural Science Basic Research Plan in Shaanxi Province of China(No.2013JQ8011);Scientific Research Program Funded by Shaanxi Provincial Education Department(No.2013JK1104);Technology Projects of Industrial Research of Shaanxi Province(No.2013K06-08)

摘　　要：Based on aperture averaging effects on scintillation, a diversity reception system consisting of three apertures has been designed. The transmitted laser beam(λ=1.06 μm) propagates for 3 km, and is received through apertures with different sizes. Various numbers and configurations of apertures are studied to investigate the received laser beam's spatial profile and quality. Our results show that the diversity reception system with three apertures can suppress atmospheric scintillation with relatively simple configuration and low cost.Based on aperture averaging effects on scintillation, a diversity reception system consisting of three apertures has been designed. The transmitted laser beam （2=1.06 μm） propagates for 3 km, and is received through apertures with different sizes. Various numbers and configurations of apertures are studied to investigate the received laser beam＇s spatial profile and quality. Our results show that the diversity reception system with three apertures can suppress atmospheric scintillation with relatively simple configuration and low cost.

关 键 词：分集接收 无线激光通信 接收系统 闪烁效果 空间分布 大气闪烁 激光束 低成本 

分 类 号：TN929.1[电子电信—通信与信息系统]