摘要
运用Matlab软件建立了一种二进制双极性数字基带传输系统模型,采用滚降升余弦滤波器大大减小码间干扰和误码率,实现了对基带信号的传输,利用仿真眼图分析了系统性能,结果表明,信道信噪比越大,信号传输质量越好,仿真分析结果与理论基本一致,达到了设计要求。同时将仿真与理论有效结合,提高了教学的可视化效果,激发了学生学习的积极性,提高了教学效果。
A binary bipolar digital baseband transmission system model is established by using Matlab software.a roll-off raised cosine filter is adopted to greatly reduce inter-symbol interference and bit error rate to realize to transmit the baseband sig nals.System performance is analyzed using a simulated eye diagram.The results show that the larger the signal-to-noise ratio of the channel,the better the signal transmission quality,and the simulation analysis results are basically consistent with the theory,which meets the design requirements.At the same time,the simulation and theory are effectively combined to improve the visualiza tion effect of teaching,stimulate the enthusiasm of students to learn,and improve the teaching effect.
作者
吴晓云
李英
WU Xiaoyun;LI Ying(College of Electronic Information and Electrical Engineering,Shangluo University,Shangluo 726000)
出处
《舰船电子工程》
2019年第10期117-118,137,共3页
Ship Electronic Engineering
基金
商洛学院根植地方专项项目(编号：gz201828)
陕西省科技厅项目(编号：2018GY-082)资助
关键词
基带传输系统
MATLAB
信噪比
baseband transmission system
Matlab
signal-to-noise ratio
