生成m序列与gold序列.docx

1、生成m序列function[mseq]=m_sequence(fbconnection);n=length(fbconnection);N=2^n-1;register=[zeros(1,n-1)1];mseq(1)=register(n);fori=2:N%m序列的长度%定义移位寄存器的初始状态%m序列的第一个输出码元newregister(1)=mod(sum(fbconnection.*register),2);馈的模2和forj=2:n,newregister(j)=register(j-1);end;%寄存器与反register=newregister;mseq(i)=register(n);%移位后的寄存器%新的寄存器输出endclearall;closeall;clc;fbconnection=[00101];%输入本原多项式系数,从C1开始m_sequence=m_sequence(fbconnection);stem(m_sequence);axis([035-]);gridon;%对m序列绘图2、生成gold序列functiongoldseq=g_sequence(connection1,connection2);msequence1=m_sequence(connection1);%生成第一个m序列msequence2=m_sequence(connection2);%生成第二个m序列N=2^length(connection1)-1;fori=1:N;%gold序列长度s=mod(msequence1+msequence2,2);goldseq=s;%两个m序列模二加产生gold序列endclearall;closeall;clc;connection1=[000011];connection2=[100111];goldseq=g_sequence(connection1,connection2);stem(goldseq);axis([065-]);gridon;