自由空间卫星光通信跟踪光斑新方法  

New Tracking Facula Method for Free Space Satellite Optical Communication

作　　者：郭海超[1] 张立[1] 汪波[1] 李小军[1] 王佳[1] 

机构地区：[1]中国空间技术研究院西安分院空间微波技术重点实验室,西安710000

出　　处：《空间电子技术》2015年第4期11-14,34,共5页Space Electronic Technology

摘　　要：研究经典跟踪光斑处理重心算法,得到重心算法精度受影响原因,依此提出高精度光斑处理算法。分析典型的卫星平台振动谱和卫星平台振动对光通信链路的影响,结合跟踪光斑重心算法和高精度光斑处理算法,设计出新的光通信跟踪光斑的方法,实验验证此方法不受光斑图像链路距离、光斑不规则圆斑变化等影响。在光斑的像散、光晕、光通信链路距离和光斑不规则圆斑变化的情况下,实现了快速、有效、高精度卫星平台空间光通信的跟踪。This paper studies typical tracking facula Center of gravity Algorithm and summarizes reason of the algorithm precision, puts forward new facula algorithm. Satellite platform vibration spectrum is typically analyzed to optical communi- cation link effect, and satellite platform vibration optical communication compensation method is introduced. Experiment re- suits show that the proposed method is effective under the effect of background and anomaly facuia and so on. Integrating from high precision and center of gravity algorithm, new optical communication tracking method is designed. The method is immunity to the halation, optical aberration and optical communication link, and realizes high speed and high precision sat- ellite platform optical communication tracking technology.

关 键 词：振动补偿 卫星平台 重心算法 互相关 光通信跟踪 

分 类 号：TN927.2[电子电信—通信与信息系统]