无线激光通信在空基平台条件下的通信性能分析  

Communication Performance Analysis of Free-space Optical Communication in Airborne Platform

作　　者：武文周 李少波[1,2] 杨乾远 WU Wenzhou;LI Shaobo;YANG Qianyuan(The 54th Research Institute of CETC,Shijiazhuang 050081,China;Hebei Key Laboratory of Photonic Information Technology and Application,Shijiazhuang 050081,China;The 34th Research Institute of CETC, Guilin 541004,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]河北省光子信息技术与应用重点实验室,河北石家庄050081 [3]中国电子科技集团公司第三十四研究所,广西桂林541004

出　　处：《无线电工程》2022年第4期699-704,共6页Radio Engineering

基　　金：广西科技重大专项资助(桂科AA18118038-3)。

摘　　要：大气信道和平台振动条件是影响空基平台无线激光通信能力的重要因素,针对空-空、空-地激光通信2种典型应用场景,充分考虑大气湍流影响和飞行平台振动等持续存在的环境影响因素,比较分析了小型无人机、大型飞机和飞艇3种典型飞行平台的链路特性和平台振动特性,对各型平台在不同链路中的通信能力进行了理论仿真研究。仿真结果表明,飞行高度和传输距离对空-空激光链路影响较大,空-地上行链路相比下行链路具有更好的误码率性能,更好的平台振动抑制能力能够有效地提高空基平台传输能力。Atmospheric channel and platform vibration are the main factors affecting Free-Space Optical(FSO)communication capability.Two typical FSO application scenarios of air-to-air and air-to-ground FSO links are analyzed.By taking sufficient consideration of the impact of turbulence and vibration,the link and platform vibration characteristics of small drones,large aircrafts and airships are compared and analyzed,and the communication capabilities of the above platforms in different links are studied by numerical simulation.The result shows that the flight altitude and transmission distance are the main factors affecting the air-to-air FSO link,the uplink of air-to-ground FSO link,as compared with the downlink,shows better BER performance,and better vibration suppression technique can effectively improve the transmission capability of airborne platforms.

关 键 词：无线激光通信 空基平台 大气信道 平台振动 数值仿真 

分 类 号：TN929.12[电子电信—通信与信息系统]