4DPSK解调器的研制

Research on 4DPSK Demodulator

本文首先介绍４ＤＰＳＫ解调器的工作原理．接着对乘法器、差分解码电路等进行了深入的分析，最后简单介绍提载电路、位同步提取电路．

The working principle of 4DPSK demodulator is first discussed and then the ana- lysis of multiplier and the differential decoder are made in greater detail. Finally, a brief in- troduction to the carrier frequence abstracting circuit and bit synchronization abstracting cir- cuit are presented.