毕业论文(设计)基于SIMULINK的PCM编码与解码的研究.docx

郑州大学西亚斯国际学院本科毕业论文（设计）题 目基于SIMULINK的PCM编码与解码的研究 指导教师 职称 学生姓名 学号 20091521222 专 业 电子信息工程 班级 2 院 （系） 电子信息工程学院电子工程系 完成时间 2013年4月18日 基于SIMULINK的PCM编码与解码的研究 摘 要 脉冲编码调制（pulse code modulation），简称脉码调制，就是我们所要研究的PCM。脉冲编码调制是不仅理论上已经很完善，而且在概念上也很简单的编码系统。它很早就被广大的通信研究者研制出来了，不仅使用广泛，而且原理简单。我们运用MATLAB软件中的Simulink工具来实现PCM编解与解码的仿真，其设计方便简单而且操作方便灵活，从使得整个电路设计上的编码和解码易于完成。本论文所要研究的通信过程主要为抽样、量化、编码等步骤，MATLAB软件中的Simulink工具就为建立实际的通信系统提供了实验仿真。利用MATLAB集成环境下的Simulink仿真平台提供的信号处理工具箱和通信工具箱中的模块，充分发挥了Simulink建模简单，参数易于调整的特点。用示波器观察所设计的PCM的编码与解码前后的信号波形，加上各种信号源，用误码测试模块测量误码率；最后根据运行结果和波形来分析该系统的性能。关键词 MATLAB/Simulink仿真平台/PCM编码与解码STUDY ON PCM ENCODING AND DECODING BASED ON SIMULINKABSTRACTPulse Code Modulation (pulse code modulation), known as pulse code modulation, which is what we want to research. Pulse code modulation is not only theoretically have been perfect, but also conceptually very simple coding system.Early on, its researchers developed a general communications, not widely used, but also simple in principle. We use Simulink in MATLAB software tools to decode PCM series solutions and simulation, its design, simple and easy to operate flexibly, makes the whole encoding and decoding on the circuit design is easy to complete. This paper studies the communication process primarily for sampling, quantization and coding procedures, Simulink in MATLAB software provides the tools to build the actual communication system simulation.Using MATLAB Simulink simulation platform of integrated environment provides communications and signal processing toolbox tool box module, give full play to the Simulink model simple parameters adjustment feature. Design of PCM encoding and decoding using oscilloscope observation posts around signal waveform, plus a variety of signal sources, measuring BER error test modules and finally according to the operating result and waveform to analyze the performance of the system. KEY WORDS MATLAB，Simulink simulation，PCM coded and decode目 录摘 要IABSTRACTII1. 绪论11.1 研究的背景11