天地一体化信息网络2024，Vol.5Issue(4)：34-42,9.DOI:10.11959/j.issn.2096-8930.2024037
面向星地融合的激光通信:研究现状、关键技术与未来展望
Laser Communications for Satellite-Terrestrial Integration:Research Status,Key Technologies,and Future Prospects
摘要
Abstract
Satellite laser communication uses laser with shorter wavelength as the information carrier for data transmission,which can achieve a higher data transmission rate than RF communication.With an abundant spectrum resource of in optical band,the laser com-munication has a larger bandwidth than RF communication.Besides,because of the highly directional and narrow beam characteristics of the laser beam,it is difficult to intercept and eavesdrop the laser links.Satellite laser communication,with its characteristics of high speed,high bandwidth,high security,and abundant spectrum resources,has become an important supporting technology for the devel-opment of future 6G satellite-terrestrial integration networks.This paper summarized the current research status of laser communication for satellite-terrestrial integration both domestically and internationally,with a focus on key technologies such as satellite laser commu-nication pointing,acquisition,and tracking,modulation and coding,switching and routing,and laser-radio frequency cooperation.The future development directions of corresponding key technologies were also discussed,provided direction reference for future research and development of laser communication technology for satellite-terrestrial integration networks in China.关键词
星地融合网络/卫星激光通信/激光与射频协作Key words
satellite-terrestrial integration network/satellite laser communication/laser-radio frequency cooperation分类
信息技术与安全科学引用本文复制引用
袁仁智,郭嘉,姚海峰,陈之北,李玉钗,孙耀华,彭木根..面向星地融合的激光通信:研究现状、关键技术与未来展望[J].天地一体化信息网络,2024,5(4):34-42,9.基金项目
国家重点研发计划资助项目(No.2022YFB2902603) （No.2022YFB2902603）
国家自然科学基金资助项目(No.62201075,No.62105029) National Key Research and Development Program of China(No.2022YFB2902603),The National Natural Science Foundation of China(No.62201075,No.62105029) （No.62201075,No.62105029）
