中文说明：涡轮码也被称为并行级联码和解码复杂度是小的尺寸的代码，而代码长度可能是很长的。由于解码复杂度变得很小，所以在所有的实际用途中，香的限制也成为可以实现的。
English Description：
Turbo codes are also known as parallel concatenated codes and the decoding complexity is small for the size of the code, while the code length may be very long. Because the decoding complexity becomes very small, so in all practical applications, the limitation of fragrance can also be realized.