基于Simulink的脉冲编码调制系统设计  

Design for PCM System Based on Simulink

作　　者：李探元[1] 任宏[1] 刘小宝[1] 

机构地区：[1]91245部队

出　　处：《无线通信技术》2011年第4期10-13,共4页Wireless Communication Technology

摘　　要：脉冲编码调制(PCM)是一种将模拟语音信号变换成数字信号的编码方式,已用于市话中继传输和大容量干线传输以及数字程控交换机,并在用户话机中采用。本文建立了基于Simulink的PCM仿真系统,将声音信号、均匀量化的PCM信号、A律非均匀量化的PCM信号、μ律非均匀量化的PCM信号进行了比较,对PCM系统的分析设计具有重要的意义。Pulse code modulation(PCM) is a method of transforming analog voice signal into digital signal,which has been widely used in the telephone relay transmission and large capacity transmission.The model of PCM based on simulink is constructed to analyze the performance of sound signal,uniform quantitative signal,A-law non-uniform quantitative signal and μ law non-uniform quantitative signal.

关 键 词：PCM 均匀量化 a律 μ律 

分 类 号：TN912[电子电信—通信与信息系统]