摘要
正交频分复用技术是通信原理课程的重要部分,将MATLAB仿真软件引入到正交频分复用技术教学中,对正交频分复用信号的生成进行仿真,通过仿真证明各路子载波相互正交.介绍了正交频分复用系统的循环前后缀,通过仿真让学生能够更直观地了解循环前后缀的生成,对符号同步的影响以及抗多径干扰原理.通过MATLAB仿真使学生脱离枯燥的公式,对OFDM系统有更直观的认识,为后续的学习和应用打下基础,提高了课堂教学质量.
Orthogonal frequency division multiplexing（OFDM）technology is an important part of the course of communication principles.MATLAB simulation software is introduced into the teaching of orthogonal frequency division multiplexing technology.The generation of orthogonal frequency division multiplexing signal is simulated.Then the cycle prefix and suffix of orthogonal frequency division multiplexing system is introduced,through the simulation to let the students can more intuitive understanding of the circulation before the suffix of generation,the impact on the symbol synchronization and multipath interference principle.Through MATLAB simulation,students can get rid of boring formulas,have a more intuitive understanding of OFDM system,lay a foundation for subsequent learning and application,and improve the quality of classroom teaching.
作者
祝晓霞
杨帆
ZHU Xiao-xia;YANG Fan(School of Electronics and Information Science,Fujian Jiangxia University,Fuzhou 350108,China;State Grid Fuzhou Electric Power Company,Fuzhou 350101,China)
出处
《高师理科学刊》
2018年第9期73-77,共5页
Journal of Science of Teachers＇College and University
基金
2017年福建省中青年教师教育科研项目(JAT170633)
关键词
正交频分复用
MATLAB
循环前后缀
符号同步
orthogonal frequency division multiplexing
MATLAB
prefix and suffix cycle
symbol synchronization
