【作者】 蒋大钢； 朱彬； 邓科； 黄健； 杨元杰； 陈彦； 李晓峰； 秦开宇；

【Author】 JIANG Da-gang;ZHU Bin;DENG Ke;HUANG Jian;YANG Yuan-jie;CHEN Yan;LI Xiao-feng;QIN Kai-yu;School of Astronautics & Aeronautics,University of Electronic Science and Technology of China;

【机构】 电子科技大学航空航天学院；

【摘要】 深度认知大气信道及其对激光通信的影响是激光通信实用化发展的必要途径。近年来电子科技大学构建了一种基于背投成像的激光通信信道测试系统。在该系统上完善了大气闪烁、光束漂移、大气消光系数测试方法。提出了两种大气折射率结构常数和消光系数的同步测试方法:固定孔径法和可变孔径法。上述研究有助于综合分析多种大气效应对激光通信系统性能影响。更多还原

【Abstract】 It is a necessary way for practical development of free space optical communication(FSO) to deeply understanding the atmospheric channel and its impact. The UESTC established a rear projection imaging system in recent. The measurement methods for atmospheric scintillation, beam wander and atmospheric extinction coefficient are improved based on the rear projection imaging system. Two simultaneous measurement methods for the Cn2 and extinction coefficient are proposed: constrained aperture method and variable aperture method. Those researches will helpful for comprehensively analyzing the influence of various atmospheric effects on the FSO performance.更多还原