kuopinzlp1.m

使用matlab程序实现了由随机序列到码元电平、m序列直接扩频解扩、qpsk调制解调

function  out1=kuopinzlp1(N,a)
N=20;                                  %随机数点数20
td=0.1;
f0=3000;
wc=2e4*pi;
g=100;

connections =[1 0 0 1];
mseq = m_sequence(connections);
%m序列


m=dpxs(100,mseq);

 s=length(m);
for i=1:N/2
    if(a(i)==1)
    for j=1:s
        out((i-1)*s+j)=m(j);
    end
    else
        for j=1:s
        out((i-1)*s+j)=-m(j);
    end;
end;
end;