address_make.m

basic_cama 基本的CDMA仿真程序

function s=address_make(gen)
% clc
% clear,close all;
% gen=[1 1 0 1]; % sv(j)=4[(a(j)+v0)mod2]+2[(a(j+1)+v1)mod2]+[(a(j+2))mod2]
seq=pn(gen);
seq=[seq seq];
len=length(gen)-1;
L=3 ; % mei 3 ge bite 
h=[];
for i=1:2^L
    h(i,:)=de2bi(i-1,3,'left-msb');
    for j=1:1:2^len-1
        s(i,j)=4*(mod(seq(j)+h(i,1),2))+2*(mod(seq(j+1)+h(i,2),2))+mod(seq(j+2)+h(i,3),2);
    end
end