crosscorr.m

此程序为DS-CDMA链路中加入基于子空间的PASTd多用户检测方法。系统中采用m序列阔频

% Program 5-2
% crosscorr.m
%
% Crosscorrelation function of a sequence 
%
% Programmed by yixiongshu,2008.8.9
function [out]=crosscorr(indata1,indata2,tn)
%
% indata1: input sequence1
% indata2: input sequence2
% tn        : number of period 
% out      : crosscorrelation data
%----------------------------------------------------------------------
if nargin<3
    tn=1;
end 
N=length(indata1);
out=zeros(1,N*tn);

for ii=0:N*tn-1
    out(ii+1)=sum(indata1.*shift(indata2,ii,0));
end

% end of file.