**3.1.1.4 Interleaving data**

s2=size( codedata,2); j=s2/4; matrix=reshape( codedata,j,4 ); intlvddata = matintrlv(matrix',2,2)'; % Interleave . intlvddata=intlvddata'; dec=bi2de(intlvddata', 'left-msb');
