PCM系统设计

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中北大学2013届毕业论文说明书

摘 要

本论文研究的主要内容是通信综合实验——模拟信号数字化的PCM技术。PCM即脉冲编码调制，属于很基本的通信技术之一。它包括模拟信号数字化、信道传输、数字信号还原为模拟信号三个过程。其中模拟信号数字化又由采样、量化、编码三部分组成。由于PCM系统的诸多优点，使得该项技术被广泛应用到各种技术之中。随着科学技术的发展，PCM系统渐渐不能满足人们生产生活的需要，于是出现了DPCM（差分编码调制）、 DM增量调制等新的技术。

关键词： PCM系统；模拟信号数字化；TP3067

ABSTRACT

What this paper researches is mainly about the PCM。PCM, pulse code modulation，is one of the most basic communication technologies. It adopts the samplings of Pulse signal, which includes three processes： figuring imitation signals, transmitting channels, and changing figure signals into imitation ones, to change the imitation signals. Among these three processes, figuring imitation signal is made up of three parts： sampling, quantifying, and coding. Owing to so many advantages of PCM system, it is widely used in different kinds of fields. With the development of science technology, little by little, the system of PCM can not meet people’s needs in life and production any more, so new technologies come into use, for example, DPCM, DM, etc.

KEY WORDS: PCM system，Simulated signal digitization，TP3067

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XXXX学院本科毕业（设计）论文

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