finaljudge.m

Matlab 模拟 CDMA 直接扩频。m序列生成矩阵为p(x) = 1 + x^5 + x^7 + x^8 + x^9 + x^13 + x^15。能画出每阶段的时域、频域图。

function [ o ] = finalJudge( in, n )
% n is the length of one segment
m =  floor(length(in)/n);
o = zeros(0);
for i = 1:m
    if length(find(in((i-1)*n+1:(i-1)*n+n)>0)) >= (n/2)
        o = [o 1];
    else
        o = [o 0];
    end
end