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为了研究霾环境下应用紫外光通信的系统特性,研究了霾粒子的物理特性及谱分布特性,利用散射理论分析了霾粒子在日盲紫外光波段的散射特性;并利用经典Luettgen单散射信道模型,研究了霾环境下非视距日盲紫外光传输的路径损耗特性.通过分析路径损耗与通信距离、能见度以及系统角度之间的关系仿真结果,得到了非视距紫外光传输系统中霾衰减的理论特性:在较短通信距离时,系统的路径损耗受天气状况(能见度)影响较大;能见度较好时,通信距离对路径损耗的影响将会突出,实际中应尽量选取能见度大于2 km的天气条件.文中的工作对设计霾天环境下紫外光通信系统及优化系统性能提供了一定的理论参考,同时对系统工程化实现也具有一定的指导意义.“,”In order to study the characteristics of UV communication system under the environment of haze, the physical and spectral distribution characteristics of haze particles were studied, the scattering characteristics of haze particles were analyzed in blind ultraviolet by using the theory of scattering. And by using the classical Luettgen single scattering model, the path loss characteristics of non-line-of-sight (NLOS) solar blind UV transmission were studied in the haze environment. By analyzing simulation results of the relationship between path loss and communication distance, visibility and system angle, the theoretical characteristics of haze attenuation in NLOS UV transmission system were obtained: When the communication distance is short, the path loss of the system will be greatly affected by the weather condition (visibility). When the visibility is good, the influence of communication distance on the path loss will be prominent. In practice, it should be as far as possible to select the visibility of more than 2 km weather conditions. The work of this paper provides a theoretical reference for the design of the UV-light communication system and the optimization of the system performance in the haze environment. In addition, it also has certain guiding significance for the system engineering realization.