想把相位转化为对应的双比特
| 2*pi | 1.5*pi | pi | 0.5*pi |
|---|---|---|---|
| 00 | 10 | 11 | 10 |
rel_code = zeros(1,10);
rel_phase = [2pi 1.5pi 2pi pi 1.5pi ];
for n=1:5
switch rel_phase(n)
case 1.5pi
rel_code(2n-1) = 1 ;
rel_code(2n) = 0;
case 2pi
rel_code(2n-1) = 0 ;
rel_code(2n) = 0;
case pi
rel_code(2n-1) = 1 ;
rel_code(2n) = 1;
case 0.5pi
rel_code(2n-1) = 0 ;
rel_code(2*n) = 1;
end
end
结果
rel_code =
1 至 7 列
0 0 1 0 0 0 1
8 至 10 列
1 0 0
rel_code(9:10)应该是10才对，不知道为什么，最后一次判断时没有反应