基于5G技术的卫星通信上行信道自动估计系统  

Automatic Estimation System of Satellite Communication Uplink Channel Based on 5G Technology

作　　者：周剑明 黄杉 ZHOU Jian-ming;HUANG Shan(China Unicom Guangzhou Branch,Guangzhou 510000 China;Smart Footprint Data Technology Co.,Ltd.,Beijing 100023 China)

机构地区：[1]中国联通广州市分公司,广东广州510000 [2]智慧足迹数据科技有限公司,北京100023

出　　处：《自动化技术与应用》2022年第3期85-90,共6页Techniques of Automation and Applications

摘　　要：由于卫星信道估计受到网络带宽资源的限制,存在着估计误差大、误码率高等问题,利用5G技术实现卫星通信上行信道自动估计方法的优化设计。搭建5G通信网络,为其运行提供硬件支持。优化接收机、状态机、信号处理器以及存储器装置。分析卫星通信上行信道特性,并结合分析结果构建信道模型。并利用5G技术提取卫星通信数据,自动选择并插入导频符号。最终通过对信道中多个参数的估计,得出卫星通信上行信道的自动估计结果。实验结果表明:本文所设计系统输出估计结果的信道冲击响应参数更加接近实际信道,且测试指标BER和MSE均得到明显降低。Because satellite channel estimation is limited by network bandwidth resources,there are problems of large estimation er-ror and high bit error rate.The optimization design of automatic estimation method of satellite uplink channel is realized by using 5G technology.It builds a 5G communication network and provides hardware support for its operation,optimizes receivers,state machines,signal processors,and memory devices.The characteristics of satellite uplink channel are ana-lyzed,and the channel model is constructed based on the analysis results.And uses 5G technology to extract satellite com-munication data,automatically selects and inserts pilot symbols.Finally,the automatic estimation result of satellite com-munication uplink channel is obtained by estimating several parameters in the channel.The experimental results show that the channel impulse response parameters of the system designed in this paper are more close to the actual channel,and the test indexes BER and MSE are significantly reduced.

关 键 词：5G技术 卫星通信 上行信道 信道估计 

分 类 号：TN929[电子电信—通信与信息系统]