面向太阳系边际探测的激光通信方案研究

Laser communication proposal for solar system boundary exploration

摘要:

针对我国太阳系边际探测任务需求，提出了利用激光链路进行对地高速信息传输的方案。梳理了深空激光通信的国外发展现状，分析了太阳系边际探测任务的激光链路特点和约束条件，给出了飞行激光终端和激光地面站的初步方案和主要参数，进行了链路预算和影响因素分析，并对我国未来太阳系边际探测任务激光通信的发展进行展望，为我国太阳系边际探测任务的激光通信论证与实施提供参考。

Abstract:

For the needs of China’s solar boundary exploration, a proposal of using laser links with high speed information transmission to the ground is offered. Firstly, the foreign development status of deep space laser communication is processed. The characteristics of laser link and constraints for solar boundary exploration are analyzed secondly. Then, the preliminary proposal with key parameters of spacecraft laser communication terminal and optical ground station is offered. Besides, the link budget and impact factor are analyzed. At last, the developments of laser communication for China’s solar boundary exploration are described. The research will provide the reference for further demonstration and implementation of laser communication for China’s solar boundary exploration.