太赫兹科学与电子信息学报2024，Vol.22Issue(3)：278-284,344,8.DOI:10.11805/TKYDA2024003
一种低轨卫星通信的定时提前计算方法
A timing advance calculation method for Low Earth Orbit satellite communication
摘要
Abstract
As an important supplement to the terrestrial network,the Low Earth Orbit(LEO)satellite network is an important part of the future earth-earth integrated network.However,due to the high moving speed of LEO satellites and the long propagation distance of satellite-ground communication,large propagation delay is caused,therefore a new calculation strategy for the Timing Advance(TA)of the uplink in the satellite-ground communication background of LEO satellites is needed.Based on the satellite-earth communication scenario of LEO satellite,TA and its provisions in the protocol are introduced firstly.Then,according to the characteristics of LEO satellite,a timing advance calculation method of LEO satellite communication is proposed.The effectiveness of the proposed scheme is verified by simulation analysis,which provides a reference for the design of satellite-earth communication system of LEO satellite.关键词
低轨卫星/星地通信/定时提前量/计算方法/神经网络Key words
LEO satellite/space-ground communication/Timing Advance/calculation method/neural network分类
信息技术与安全科学引用本文复制引用
段相龙,刘留,周涛,苏昭阳,韩紫杰,尹毅..一种低轨卫星通信的定时提前计算方法[J].太赫兹科学与电子信息学报,2024,22(3):278-284,344,8.基金项目
国家自然科学基金资助项目(62341102) （62341102）
中国国家铁路集团有限公司科技研究开发计划资助项目(N2023G060) （N2023G060）
