Orthogonal Code generation in CDMA using Walsh matrix in MATLAB

MATLAB Program:

Code:

clc

clear all

close all

s=input('Enter the number of codewords you want:');

if(s==1)

    z=[1];

elseif(s==2)

    z=[1 1;1 -1];

else

x=[1 1;1 -1];

z=[];

s=log(s)/log(2);

for i=1:s-1

    z=[x x;x -x];

    x=z;

end

end