基于PCM编码的模拟信号数字化实现  

Implementation of analog signal digitization based on PCM coding

作　　者：郭慧[1] 

机构地区：[1]山西大学商务学院信息学院,山西太原030031

出　　处：《微型机与应用》2017年第2期70-71,77,共3页Microcomputer & Its Applications

摘　　要：用A律13折线近似PCM编码的过程,总结了三种不同的计算思路,通过对极性码C1,段落码C2C3C4,段内码C5C6C7C8的计算,得到PCM的8位二进制编码、编码电平及编码量化误差。三种计算方法结果一致,表明了三种计算方法的有效性。最后,在MATLAB上对PCM编码进行了仿真,并总结了三种计算方法的特点,对PCM编码的计算及实现具有一定的借鉴意义。With the encoding of A law 13 segments approximate PCM encoding,through the specific examples,this paper gives three different calculation methods and processes. Through the calculation of polar code C1,the code section C2C3C4,and code segment C5C6C7C8,it concludes the PCM 8- bit binary coding,coding level and coding quantization error. The results of the three methods are consistent,and the results show that the three methods are effective. Finally,the PCM code is simulated on MATLAB,and the characteristics of the three calculation methods are summarized,which can be used for reference for the calculation and implementation of PCM coding.

关 键 词：PCM MATLAB仿真 A律13折线 编码 

分 类 号：TP914[自动化与计算机技术]