数字基带传输系统可靠性研究及相关因素分析  

Reliability research and related factor analysis of digital baseband transmission system

作　　者：王晓玲[1] 胡剑凌[1] WANG Xiaoling;HU Jianling(School of Electronic and Information Engineering,Soochow University,Suzhou 215006,China)

机构地区：[1]苏州大学电子信息学院,江苏苏州215006

出　　处：《现代电子技术》2018年第20期100-103,共4页Modern Electronics Technique

基　　金：苏州大学"十三五"省品牌专业培育资助项目;苏州大学2017年高等教育教学改革研究课题重点招标项目(5731500818);2017年教育部产学合作协同育人项目~~

摘　　要：首先完成基于Matlab/Simulink的基带传输系统的仿真设计,经显示器观察发现各点波形与原理一致。在仿真基础上,对双极性码和双相码两种传输码系统进一步研究系统误码率,分析信息传输速率、不同传输码型和系统传输特性对系统可靠性的影响,仿真结果表明,降低信息速率、提高系统信噪比、增加系统滤波器滚降系数和选用高效的传输码型均可以降低系统误码率,提高系统的可靠性。The simulation design of the baseband transmission system based on Matlab/Simulink is completed in this paper.It is found by displayer observation that the waveform of each point is consistent with that of theoretical analysis.On the basis of the simulation,further research on system error rates of the bipolar code transmission system and biphase code transmis?sion system is carried out,so as to analyze the influence of information transmission rate,different transmission codes,and system transmission feature on system reliability.The simulation results show that the system error rate can be decreased and the system reliability can be improved by reducing the information transmission rate,improving system SNR,increasing the roll-off factor of the filter,and selecting high-efficient transmission code.

关 键 词：数字基带传输 双极性码 双相码 信息传输速率 误码率降低 可靠性研究 

分 类 号：TN935.2-34[电子电信—信号与信息处理]