Study on Satellite-to-ground Laser Communications with Existence of Atmosphere

作     者：LI Hu HU Tai SHAO Shiyong WU Pengfei LI Hu;HU Tai;SHAO Shiyong;WU Pengfei

作者机构：National Space Science CenterChinese Academy of SciencesBeijing 100190 University of Chinese Academy of SciencesBeijing 100049 Anhui Institute of Optics and Fine MechanicsChinese Academy of SciencesHefei 230031 

出 版 物：《空间科学学报》 (Chinese Journal of Space Science)

年 卷 期：2021年第41卷第3期

页      面：505-510页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：Supported by the Strategic Priority Research Program of Chinese Academy of Sciences(XDA04080201) 

主　　题：Atmospheric deflection Laser communication Satellite-to-ground Correction 

摘      要：The laser beam used to establish a communication channel between satellite and ground segments has a small divergence angle and a tiny spot on the Earth s surface,which may lead to the fail of the *** it s important to study the deflection of laser beam by the Earth s atmosphere and find a way to calibrate this *** theoretical analysis and real data processing method are used to obtain the mathematical model for divergence angle of laser communication beam and its correction *** the model has been applied to the data,which was used to describe the atmosphere state by traditional ground segments to obtain the critical elevation *** to the results of calculation,our conclusion will be that the correction should be done when the critical elevation happens.