平流层多波长自由空间光通信系统

Multiple wavelength free space optical communications on High Altitude Platforms

以近地面大气作为传输介质的大气激光通信(FSO)受地面情况和复杂的气象条件影响很大,传输的信号质量会受到很大干扰。本文介绍以底部平流层大气作为远距离激光通信信道选取平台的使用,以及多路多波长激光传输在此平台下的应用。这种技术可以增大传输距离并降低大气不稳定性对通信链路的影响。本文以模拟试验结果为例分析了系统效果和可行性,试验模拟了大气湍流效应对光路的影响。

Due to complicated whether effect and ground instance, the beam of free space optical communication (FSO) is to be fading badly through lower atmosphere and the signal quantity will be subjected to some severe interference. This paper introduces a form of free space communication system on the High Altitude Platforms over long path in the stratosphere and a technology involving a source operating on multiple wavelengths. This kind of technique can enlarge transmission distance and lower the influence of the unsteady atmosphere upon the communication links.A simulation test to imitate the effect of turbulence atmosphere is taken to analyze the system effect and feasibility.