shiyan1.m

硕士CDMA作业

%m序列生成
a1=zeros(63,7);
b1=zeros(7,1);
c1=zeros(1,63);
b1=[0 0 0 0 0 1 0];
a1(1,6)=1;
for i=1:63,
    b1(1,7)=b1(1,6);
    b1(1,6)=b1(1,5);
    b1(1,5)=b1(1,4);
    b1(1,4)=b1(1,3);
    b1(1,3)=b1(1,2);
    b1(1,2)=b1(1,1);
    b1(1,1)=xor(b1(1,1),b1(1,7));
    for j=1:7,
        a1(i,j)=b1(1,j);
    end
end
for k=1:63,
    if (a1(k,7)==0),
        c1(1,k)=1;
    else
        c1(1,k)=-1; 
    end
end
a2=zeros(63,7);
b2=zeros(7,1);
c2=zeros(1,63);
b2=[0 0 0 0 0 1 0];
a2(1,6)=1;
for i=1:63,
    b2(1,7)=b2(1,6);
    b2(1,6)=b2(1,5);
    b2(1,5)=b2(1,4);
    b2(1,4)=b2(1,3);
    b2(1,3)=b2(1,2);
    b2(1,2)=b2(1,1);
    b2(1,1)=xor(b2(1,6),b2(1,7));
    for j=1:7,
        a2(i,j)=b2(1,j);
    end
end
for k=1:63,
    if (a2(k,7)==0),
        c2(1,k)=1;
    else
        c2(1,k)=-1; 
    end
end