中文摘要：

介绍了大气紫外光通信的特点和光学天线的性能指标,仿真分析了传统的复合抛物面聚光器（CPC）和半球透镜在非视距紫外信道中的聚光性能,设计了一种二级接收的光学聚光系统,并使用ZEMAX软件进行光线追迹,对其光学增益及视场进行分析。结果表明,这种二级光学系统有较高的增益及较大的视场,适合作为非视距紫外光通信中的光学天线。

英文摘要：

This paper describes the characteristics of atmospheric ultraviolet（UV） communications and the performance of optical antenna.The concentration performance of the conventional compound parabolic concentrator（CPC） and ther hemispherical lens in the non-light-of-sight（NLOS） UV channel have been simulated and analyzed.A kind of two-level receiving optical light-gathering system has been designed,the ZEMAX software was used for the light-tracing and its optic gain as well as the field-of-view have been analyzed.The simulation results show that this two levels optical systems have a higher gain and a larger field-of-view which is suitable for the optical antenna of the NLOS UV communication.