【作者】 付强； 姜会林； 王晓曼； 刘智； 景文博；

【Author】 FU Qiang 1,JIANG Hui-lin 1,WANG Xiao-man 2,LIU Zhi 2,JING Wen-bo 2 (1.Institute of Space Photoelectric Technology,Changchun University of Science and Technology,Changchun 130022,China) (2.Changchun University of Science and Technology,Changchun 130022,China)

【机构】 长春理工大学空间光电技术研究所； 长春理工大学；

【摘要】 建立大气吸收、大气散射衰减效应理论模型及光强起伏、光束漂移和光斑扩展等大气湍流效应影响模型。在分析各模型的基础上,重点进行大气吸收、散射理论模型的仿真和大气湍流对激光传输特性影响模型的仿真。仿真结果表明:大气的吸收和散射将对功率产生衰减;大气抖动引起的激光散斑效应、光束偏折和扩展效应将影响跟踪精度和视轴对准精度;大气湍流引起的光功率波动效应将影响通信的速率和误码率。最后对激光在大气中传输特性研究进行了展望。更多还原

【Abstract】 Build theory model of the attenuation caused by atmosphere absorbs,atmosphere scattering and effect model of atmospheric turbulence caused by strong light,drifting and expanding of beam and so on.Under the analysis of the model,Focused on theory model simulation of atmospheric absorption and scattering,and effect model simulation of laser transmission characteristics.Simulation results show that:Atmospheric absorption and scattering of power will produce attenuation;Atmospheric jitter of laser speckles effect,beam bending and expanding Will influence the tracking accuracy and precision ship-swaying alignment;The fluctuation of power by Atmospheric turbulence will affect communication rate and bit error rate.Finally research of the laser transmission characteristics in the atmosphere is prospected.更多还原