常用线性信道编码的仿真与分析  

Performance Emulation and Design of Liner Channel Coding

作　　者：罗雨薇 景文芳 Luo Yuwei;Jing Wenfang(School of Electronic Information Engineering,Sichuan Technology and Business University,Chengdu 611745 China)

机构地区：[1]四川工商学院电子信息工程学院,四川成都611745

出　　处：《四川工商学院学术新视野》2021年第4期98-100,共3页Academic New Vision of Sichuan Technology and Business University

基　　金：四川工商学院教育教学改革项目,项目名称:基于《MATLAB语言及仿真》课程的信息化教学改革与实践,项目编号:2021JYJXGG01。

摘　　要：信道编码理论上解决理想编码器、译码器的存在性问题,也就是解决信道能传送的最大信息率的可能性和超过这个最大值时的传输问题。本次利用MATLAB设计常用线性信道编码,MATLAB是一种高级技术计算语言和交互式环境,用于算法开发、数据可视化、数据分析和数值计算。本设计首先介绍了课题背景和研究意义,然后阐述了信道编码理论,包括信道编码、差错控制方式、线性分组码以及编码效率。之后利用MATLAB工具设计线性信道编码仿真,线性信道编码仿真包括汉明码、RS码、CRC校验码。最后通过分析仿真结果图,可以得出高斯白噪声信道中随着信道的信噪比升高,误比特率越来越低,信道的纠错能力越高。Channel coding theoretically solves the problems of the existence of ideal encoder and decoder——the possibility of the maximum information rate that the channel can transmit and the transmission problem when it exceeds this maximum value.Matlab is an advanced technology computing language and interactive environment,which is used for algorithm development,data visualization,data analysis and numerical calculation.This design first introduces the background and research significance of the subject,and then expounds the channel coding theory,including channel coding,error control mode,linear block code and coding efficiency.Then,the simulation of linear channel coding is designed by using Matlab tool,including Hamming code,RS code and CRC code.Finally,through the analysis of the simulation results,it can be concluded that with the increase of the signal-to-noise ratio of the channel,the bit error rate is lower and lower,and the error correction ability of the channel is higher and higher.

关 键 词：MATLAB 信道编码 RS码 CRC校验码 

分 类 号：TN911.22[电子电信—通信与信息系统]