?? symbolref.m
字號:
function symbol = symbolref(g1,g2,M)
[trellis1,trellis2,statego]=gen2trellis(g1,g2,M);
[a b] = size (trellis1);
for l=0:a-1
for j=1:b
ref(l*M+j,1) = trellis1 (l+1,j);
ref(l*M+j,2) = trellis2 (l+1,j);
end
end
[n m]=size(ref);
ref;
symbol = [];
for a=1:n
for b=1:m
if ref(a,b)== 0
symbol(a,b) = 1+i;
elseif ref(a,b)== 1
symbol(a,b) = 1-i;
elseif ref(a,b)== 2
symbol(a,b) = -1-i;
elseif ref(a,b)== 3
symbol(a,b) = -1+i;
end;
end;
end;
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