crosscorr.m

一些基于CDMA的编码程序

% Program CDMA-2
%
% crosscorr.m
%
% Crosscorrelation function of a sequence
%

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

ln   = length(indata1);
out  = zeros(1,ln*tn);

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

% --------------------- end of file -----------------------