四相差分相移键控的编码

The Encoding Rules in 4 Differential Phase-shift Keying System

介绍了自然码、循环码的特点及其相互关系，探讨了四进制差分相移键控方式下自然码、循环码的编码。

The natural binary code, Gray code and the relations between them are introduced. The differential encoding methods of the natural binary code and Gray code in 4DPSK system are discussed, and two examples are given.