通信原理课程设计：语音信号基带通信传输系统仿真基于DPCM编码和循环码 -Communication Theory Course Design: speech signal base-band telecommunication transmission system simulation Based on DPCM coding and cyclic codes

用Matlab语言构造多元准循环LDPC码，并通过信道进行仿真。-Matlab language used multivariate quasi-cyclic LDPC codes constructed and simulated through the channel.