m_sequence.m

m序列的分析：基于MATLAB的m序列的仿真分析

function [m_out]=m_sequence(fbconnection,m,chu) 
len=length(fbconnection); 
n=2^len-1;                %序列长度 
register=chu;             %初态 
fan=0; 
for i=1:n*m               % i循环一次输出一个m_out 
    m_out(i)=register(len); 
    for k=1:len                  % k循环累加反馈 
        fan=fan+fbconnection(k)*register(k); 
    end 
    fan=mod(fan,2);            % 反馈系数 
    newregister(1)=fan; 
    for j=2:len               % j循环移位 
        newregister(j)=register(j-1); 
    end 
    register=newregister; 
    fan=0; 
end