面向多服务的数字光载无线通信系统设计  

Design of Multi-service Wireless Communication System Based on Digital Optical Carrier

作　　者：侯长满 李文[2] 张江涛[2] 刘晓滨[2] 杨洲 陈远航[2] HOU Changman;LI Wen;ZHANG Jiangtao;LIU Xiaobin;YANG Zhou;CHEN Yuanhang(Unit 92493 of PLA,Huludao Liaoning 12500,China;Beijing Institute of Aerospace Control Devices,Beijing 100039,China)

机构地区：[1]中国人民解放军92493部队,辽宁葫芦岛12500 [2]北京航天控制仪器研究所,北京100039

出　　处：《通信技术》2022年第10期1383-1388,共6页Communications Technology

摘　　要：随着室内无线信号覆盖业务应用种类的丰富及数量的增加,沿用传统的光纤传输技术会导致数据吞吐量急剧增长,为解决此问题,提出了一种基于数字重采样的数据压缩方法,可以将宽带大数据流信号压缩为窄带低数据流信号,实现后端光纤的低比特率传输,并详细给出了中频频率选取、数据压缩以及自动增益控制等的设计方法。基于所提方法和设计,对各路通道链路动态范围性能进行测试,结果表明各通道的指标均在70 dBm以上,说明系统可在实现数据压缩的同时保持其动态范围性能。As the variety and quantity of indoor coverage wireless service applications increase,the use of traditional optical fiber transmission technology will lead to a sharp increase in data throughput.To address this problem,this paper proposes a data compression method based on digital resampling,which can compress broadband big data stream signals into narrowband low data stream signals to facilitate the transmission of low bit rate in the back-end fiber.This paper also gives details of the design methods for IF frequency selection,data compression and automatic gain control.Based on the proposed method and design,the dynamic range performance of each channel link is tested,and the results show that the index of each channel is above 70 dBm,indicating that the system can achieve data compression while maintaining dynamic range performance.

关 键 词：数据压缩 自动增益控制 数字接收机 光纤分布系统 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]