吉林大学学报(信息科学版) ›› 2020, Vol. 38 ›› Issue (5): 601-605.

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基于 Matlab 的数字通信系统原理与控制仿真实验

  

  1. 盐城工学院 信息工程学院, 江苏 盐城 224051
  • 收稿日期:2020-02-24 出版日期:2020-09-24 发布日期:2020-10-23
  • 作者简介:袁敏(1979— ), 女, 江苏徐州人, 盐城工学院讲师, 主要从事测试信号获取与处理研究, (Tel)86-13851077686(E-mail)yuanmin0516@ 163. com
  • 基金资助:
    江苏省科技厅科技支撑计划基金资助项目(BY2016065-09)

Experimental Research on Principle and Control Simulation of Digital Communication System Based on Matlab

  1. School of Information Engineering, Yancheng Institute of Technology, Yancheng 224051, China
  • Received:2020-02-24 Online:2020-09-24 Published:2020-10-23

摘要: 为了优化当前通信系统运行参数、 提高通信性能, 提出基于 Matlab 的数字通信系统原理与控制仿真实验方法。 构建数字通信系统仿真模型, 并分析其运行的基本特性。 将数字通信系统仿真程序划分为仿真建模、实验以及分析 3 个步骤, 并分别进行分析。 在数字通信系统和通信仿真技术基础上, 引入 Matlab 实现数字通信系统原理与控制仿真实验。 依据 Matlab 软件中通信工具箱设计界面, 将 Matlab 的仿真实验划分为基于Simulink 平台的时间流仿真实验和基于 Matlab 工作空间的数据流仿真实验。 选择数字信号基带在传输过程中的误码率作为实例开展数据流仿真实验。 将自适应天线研究作为实例开展时间流仿真实验。 实验结果表明,Matlab 工具能在数字通信系统仿真测试中灵活调整系统参数, 使系统运行效果达到最优。

关键词: Matlab 软件, 数字通信系统, 通信仿真技术, Simulink 平台

Abstract: In order to improve the operation parameters and optimize the communication performance of the current communication system, the principle and control simulation experiment method of digital communication system based on Matlab is proposed. The simulation model of digital communication system is constructed, and the basic characteristics of its operation are analyzed. The simulation program of digital communication system is divided into three parts: simulation modeling, experiment and analysis. According to the design interface of communication toolbox in Matlab software, the simulation experiment of Matlab is divided into time flow simulation experiment based on Simulink platform and data flow simulation experiment based on Matlab workspace. The bit error rate of digital signal baseband in transmission process is selected as an example to carry out data flow simulation experiment, and the adaptive antenna research is taken as an example to carry out time flow simulation experiment. The experimental results show that the Matlab tool can adjust the system parameters flexibly in the simulation test of digital communication system, so as to optimize the system operation effect.

Key words: Matlab, digital communication system, communication simulation technology, Simulink platform

中图分类号: 

  • TP391