%交織度為8的反交織
function d=COUNTER_WEAVE_8(u)
D=zeros(8,57);
a=size(u);
N=a(1)*a(2)/456-1;
u=(reshape(u,114,4*(N+1)))';
for n=1:N
	for k=0:455
   	b=mod(k,8)+4*(n-1);
   	j=2*mod(49*k,57)+floor(mod(k,8)/4);
      C(n,k+1)=u(b+1,j+1);
   end
end
C=C';
d=reshape(C,1,456*N);