Overview and trend of steady tracking in free-space optical communication links

被引：4
|
作者：
Yu, Siyuan [1 ]
Ma, Zhongtian [1 ]
Wu, Feng [1 ]
Ma, Jing [1 ]
Tan, Liying [1 ]
机构：
[1] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150001, Heilongjiang, Peoples R China
来源：
SELECTED PAPERS FROM CONFERENCES OF THE PHOTOELECTRONIC TECHNOLOGY COMMITTEE OF THE CHINESE SOCIETY OF ASTRONAUTICS 2014, PT I | 2015年 / 9521卷
关键词：
free-space optical communication; PAT; steady tracking; tracking accuracy; SILEX;
D O I：
10.1117/12.2087591
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
The tracking is mainly used to maintain the established optical communication links (OCLs) in pointing, acquisition and tracking (PAT) ensuring the reliability of date transmission. The structure of pointing and tracking assembly, implementation methods and performances of beacon detector are reviewed. Analysis results show that reducing beam divergence and emission power, using closed-loop composite axis structure tracking system, removing acquisition beacon, analyzing far-filed characters of bidirectional tracking beam are critical to achieve high reliability of data transmission and long steady tracking in free-space optical communication.
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页数：10
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