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大气信道对垂直发收模式紫外光散射通信性能影响的仿真
引用本文:丁莹,佟首峰,董科研,姜会林,付强.大气信道对垂直发收模式紫外光散射通信性能影响的仿真[J].光子学报,2014,39(10):1851-1856.
作者姓名:丁莹  佟首峰  董科研  姜会林  付强
作者单位:(长春理工大学 空间光电技术研究所 光电测控与光信息传输技术教育部重点实验室,长春 130022)
基金项目:国家高技术研究发展计划资助
摘    要:介绍了非直视单散射信道模型及其在椭球坐标系下的求解方法.在此基础上,针对垂直发收模式,研究了大气信道对紫外光通信系统的影响.对不同天气、不同通信距离条件下,大气信道所产生的能量损耗、时间延迟和脉冲展宽等进行了定量分析和仿真.仿真结果表明:能量衰减随能见度变化曲线存在拐点,即并不是天气越好,能见度越高,系统接收能量越大|通信距离1 km时,能见度18 km处出现能量衰减最小值|能量衰减随通信距离非线性递增,通信距离1 km时,能量衰减近100 dB|随着通信距离的增加,时间延迟和脉冲展宽都近似呈线性增长,通信距离1 km时,时间延迟接近5 μs,脉冲展宽大于10 μs.

关 键 词:   紫外光通信  垂直发收模式  大气信道  能量衰减  时间延迟  脉冲展宽
收稿时间:2010-01-04

Study and Simulation of Atmospheric UV Communication Performance with Vertical Transmitter-Receiver
DING Ying,TONG Shou-feng,DONG Ke-yan,JIANG Hui-lin,FU Qiang.Study and Simulation of Atmospheric UV Communication Performance with Vertical Transmitter-Receiver[J].Acta Photonica Sinica,2014,39(10):1851-1856.
Authors:DING Ying  TONG Shou-feng  DONG Ke-yan  JIANG Hui-lin  FU Qiang
Institution:(Changchun University of Science and   |Technology,Key Laboratory of Technology of Photo-Electronic Measure-Control and Laser Transfers,Ministry of Education,Changchun 130022,China)
Abstract:The non-line of sight single scattering channel model and its solution in ellipsoidal coordinates are introduced.According to vertical transmitter-receiver model,the influence of atmospheric channel on ultraviolet communication system is analyzed.Under different weather conditions and different communication distances,the transmission loss,time-delay and pulse broaden etc.caused by atmospheric channel are quantificationally analyzed and simulated.The simulation results show that: the curve of energy attenuation with visibility dependence has inflection point that the better weather and the higher visibility do not result in greater system receiving energy|when the visibility equals to 18 km,the minimum of energy attenuation occurs|energy attenuation nonlinearly increases with the increase of communication distance,and the energy attenuation is almost 100 dB when the communication distance equals to 1 km|with the increase of the communication distance,both time delay and pulse broaden approximately linearly increase|the time delay is close to 5 μs and pulse broaden is greater than 10 μs when the communication distance equals to 1 km.
Keywords:   Ultraviolet communication  Vertical transmitter-receiver  Atmospheric channel  Transmission loss  Time-delay  Pulse broaden
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