Matlab模拟循环编码译码

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概述

1 简介

Matlab模拟循环编码译码

2 部分代码

function [ C_decode ] = Jiaoyanzi_decode( n,k,R,gx )%UNTITLED2 Summary of this function goes here%   Detailed explanation goes here% n 码字长度，k为信息为长度，R为接收码字序列，gx为生成多项式序列%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%校验子译码%g=zeros(1,n-k+1); for i=1:n-k+1 %倒序的生成多项式 对应的多项式为：1+x+x3 生成多项式序列后面为高位    g(i)=gx(n-k+1+1-i);endR1=zeros(1,n);for i=1:n    R1(i)=R(n+1-i);  %将循环码cm进行正序，因为我们习惯码字序列高位在前，低位在后。endp=2; [q,s]=gfdeconv(R1,g,2);    %gfdeconv函数输入和输出的多项式的对应的序列后面为高位。 移位后的m(x)与g(x)做模2除法得到商q和余式r(x)%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%[