码速变换也称速率变换,即将速率为Fi(t)的信码流变成速率为Fo(t)的信码流,且携带信息量不变。这在数字通信、数传等领域中被广泛应用。常用一种叫缓冲存贮器或叫 The rate transforms are also called rate transforms. That is, a stream with a rate of Fi (t) is converted into a stream with a rate Fo (t), and the amount of information carried is unchanged. This is widely used in digital communications, data transmission and other fields. Commonly used called buffer memory or called