CAJ | 학술논문

大气信道是制约无线激光通信链路性能提高的一个重要约束条件。为了提升通信系统性能，使其能适应远距离、高速率、低误码率的传输需求，在进行系统级设计时根据大气信道激光传输特性进行总体设计与分析是十分必要的。首先对大气激光传输特性展开研究，在实验的基础上对大气湍流、大气衰减效应进行了分析；然后从大气信道约束的角度出发，分析了大气信道中光端机的光学发射天线、光学接收天线、通信系统、瞄准跟踪等子系统的设计方法以及相应的设计参数和优化方法；最后给出了一套大气信道无线激光通信系统的总体设计实例。
대기신도시제약무선격광통신련로성능제고적일개중요약속조건。위료제승통신계통성능，사기능괄응원거리、고속솔、저오마솔적전수수구，재진행계통급설계시근거대기신도격광전수특성진행총체설계여분석시십분필요적。수선대대기격광전수특성전개연구，재실험적기출상대대기단류、대기쇠감효응진행료분석；연후종대기신도약속적각도출발，분석료대기신도중광단궤적광학발사천선、광학접수천선、통신계통、묘준근종등자계통적설계방법이급상응적설계삼수화우화방법；최후급출료일투대기신도무선격광통신계통적총체설계실례。
Atmospheric channel is an important constraint conditions to promote the performance of wireless laser com-munication link. In order to improve the performance of the system, the demand of long distance transmission, high rate, low error rate that can be adapted. Total analysis based on channel characteristics, before designing the concrete proposal, is necessary. Firstly, in this paper, the research of character of Atmospheric transmission of laser is focused on and carried on. On the base of experiments, the atmospheric turbulence, atmospheric attenuation so and on, were analyzed. Then, from the view of atmospheric channel constraints, the design parameters and optimization method of the key subsystem are analyzed, such as optical transmitting antenna, optical receiving antenna, communication system, APT (Acquisition、Pointing、tracking). Finally, an overall design example of atmospheric laser communication system in in atmosphere channel is given.