曲靖师范学院学报 ›› 2022, Vol. 41 ›› Issue (3): 60-66.

• 计算机科学研究 • 上一篇    下一篇

基于Matlab GUI移动衰落信道的仿真研究

谢文娣, 王恩亮   

  1. 安徽新华学院 电子工程学院,安徽 合肥 230088
  • 收稿日期:2021-09-22 出版日期:2022-05-26 发布日期:2022-06-02
  • 作者简介:谢文娣,安徽新华学院电子工程学院副教授,主要从事嵌入式系统、移动通信研究.
  • 基金资助:
    安徽省质量工程教学研究项目“新工科背景下双一流通信工程专业核心课理论与实践教学改革研究——以《通信原理》为例”(2021jyxm0628);安徽省大规模在线开放课程(MOOC)示范项目“通信原理”(2018mooc439);安徽新华学院教研项目“互联网+背景下基于微课和翻转课堂《通信原理》教学模式研究”(2018jy025);安徽新华学院自编特色教材“通信原理”(2017zbjc002);安徽新华学院模块化课程改革试点专业“以职业能力为导向的通信工程模块化课程试点专业”(2016mkhkc01);安徽新华学院精品课程校企共建“无线网络优化高层信令”(2017jpkcx16).

Simulation Research of Mobile Fading Channel Based on Matlab GUI

XIE Wendi, WANG Enliang   

  1. School of Electronic Engineering, Anhui Xinhua University, Hefei Anhui 230088, China
  • Received:2021-09-22 Published:2022-05-26 Online:2022-06-02

摘要: 为更好理解移动信道衰落特性,利用Matlab软件中GUI工具设计了一个移动衰落信道快速仿真平台.该平台可支持手动选择信道类型和输入信道参数,实现瑞利衰落、莱斯衰落、Nakagami衰落信道在不同步长、不同衰落系数下的仿真;同时以QPSK、16QAM和64QAM为例,通过星座图和功率谱密度的仿真分析了平衰特性和频选衰落特性对信号传输的影响.实践表明,该平台操作简单,参数设置灵活,直观形象,可视化好,为通信系统分析奠定理论基础.

关键词: Matlab GUI, 移动信道, 衰落特性, 仿真, 星座图

Abstract: A fast simulation platform of mobile fading channel is designed by using GUI tool in Matlab to help people better understand the fading characteristics of mobile channel. The platform can manually select channel types and input channel parameters, and realize the simulation of Rayleigh fading, Rice fading and Nakagami fading channels with different synchronization length and fading coefficients.The effects of flat attenuation and frequency selective fading characteristics on signal transmission are analyzed through the simulation of constellation diagram and power spectral density by the case study of QPSK, 16QAM and 64QAM. The practice shows that the platform is simple in operation, flexible in parameter setting, intuitive and good in visualization, which lays a theoretical foundation for communication system analysis.

Key words: Matlab GUI, mobile channel, fading characteristic, simulation, constellation Diagram

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