光通信
计算机科学
自由空间光通信
通信卫星
轨道(动力学)
校准
电信网络
卫星
通信系统
地球观测
近地轨道
光学
遥感
电信
物理
航空航天工程
工程类
量子力学
地质学
作者
Xuan Wang,Jiuqiang Han,Kai Cui,Chen Wang,Ming Xie,Xiangsheng Meng,Ziwei Chang
出处
期刊:Optics Letters
[The Optical Society]
日期:2023-11-09
卷期号:48 (22): 5980-5980
摘要
The inherent small divergence angle of space optical communication poses significant challenges to establishing communication links. Therefore, laser link acquisition becomes a crucial technology in optical communication, with a primary focus on reducing the acquisition time effectively. Conventional optical communication acquisition techniques fail to address the error effects caused by satellite insertion into the Earth orbit, thus unable to meet the rapid establishment demands of laser links in satellite optical communication networks. In this regard, we propose a novel, to the best of our knowledge, on-orbit calibration method for laser communication terminals to our knowledge. Leveraging stellar observations, this method achieves efficient on-orbit calibration with only a single observation. Theoretical analysis and on-orbit experimental results demonstrate that this approach effectively enhances an open-loop pointing accuracy, offering promising prospects for achieving a rapid establishment of optical communication links in ultra-long-distance optical communication missions.
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