![](https://csdnimg.cn/release/download_crawler_static/87045140/bg7.jpg)
目 录
1. 绪论..................................................................................................................................................1
2. PCM 脉冲编码设计原理 ...............................................................................................................2
2.1 信号的采样................................................................................................................................2
2.1.1 抽样定理.............................................................................................................................2
2.1.2 抽样过程.............................................................................................................................2
2.2 信号的量化................................................................................................................................2
2.2.1 量化的定义.........................................................................................................................2
2.2.2 量化的分类.........................................................................................................................2
2.3 信号的编码................................................................................................................................4
2.3.1 码型的选择.........................................................................................................................5
2.3.2 数字调制/解调 ...................................................................................................................5
2.4 PCM 脉冲编码的原理 ................................................................................................................5
2.5 MATLAB 简介 .............................................................................................................................6
3. PCM 的 MATLAB 实现....................................................................................................................9
3.1 原始信号的抽样........................................................................................................................9
3.2 PCM 均匀量化 .......................................................................................................................12
3.3 PCM 非均匀量化 ...................................................................................................................13
3.4 A 律 13 折线压缩...................................................................................................................14
3.5 非均匀量化 PCM 编码 ............................................................................................................15
3.6 非均匀量化 PCM 译码 .............................................................................................................16
3.7 仿真分析系统误码律 ...............................................................................................................17
4. 系统性能分析................................................................................................................................18
4.1 PCM 通信系统的性能指标 ...................................................................................................18
4.2 PCM 系统中噪声的影响 .......................................................................................................18
5. 小 结............................................................................................................................................20
致 谢.............................................................................................................................................21
参考文献.........................................................................................................................................22
附录源程序:.....................................................................................................................................23