基于5G的低轨道卫星通信系统传输技术研究  

Research on Transmission Technology of Low-Orbit Satellite Communication System Based on 5G

作　　者：张颖 李婷婷 解瑞云 ZHANG Ying;LI Tingting;XIE Ruiyun(Electronic Information Engineering College of Henan Institute of Technology,Xinxiang 453003,China;Cable Engineering College of Henan Institute of Technology,Xinxiang 453003,China)

机构地区：[1]河南工学院电子信息工程学院,河南新乡453003 [2]河南工学院电缆工程学院,河南新乡453003

出　　处：《河南工学院学报》2024年第2期17-20,共4页Journal of Henan Institute of Technology

基　　金：河南省高等学校重点科研项目(23B510006);河南工学院科研反哺教学专项课题(XJ2023006302);河南省科技攻关项目(242102210119)。

摘　　要：传输是低轨道卫星通信系统运行过程中的重要环节,但是现行传输技术应用效果并不理想,不仅误码率比较高,而且传输吞吐量较低。针对现行技术存在的不足,提出基于5G的低轨道卫星通信系统传输技术。利用频域均衡方法对低轨道卫星通信上行链路用户信号进行检测,补偿误差信号,利用5G技术估计通信系统下行链路信道,消除信号干扰,实现基于5G的低轨道卫星通信系统传输。实验证明:该技术低轨道卫星通信系统传输误码率不足1%,系统吞吐量超过40 Mbps。该技术在低轨道卫星通信领域具有良好的应用前景。Transmission is an important link in the operation process of low-orbit satellite communication system,but the application effect of the current transmission technology is not ideal.Not only the bit error rate is relatively high,but also the transmission throughput of the communication system is low.Aiming at the shortcomings of the current technology,the transmission technology of the low-orbit satellite communication system based on 5G is proposed.The frequency domain equalization method is used to detect the user signal of the uplink of low-orbit satellite communication,and compensate the error signal.The downlink channel of the communication system is estimated by using 5G technology,signal interference is eliminated,and the transmission of the low-orbit satellite communication system based on 5G is realized.The experimental results show that the transmission error rate of low-orbit satellite communication system is less than 1%,and the system throughput is more than 40Mbps.The design technology has a good application prospect in the field of low-orbit satellite communication.

关 键 词：5G 低轨道卫星通信系统 传输技术 频域均衡方法 

分 类 号：TN927.23[电子电信—通信与信息系统]