目 录
摘 要 ................................................................................................................................................I
Abstract...............................................................................................................................................I
1 设计任务.........................................................................................................................................1
1.1 设计目的.............................................................................................................................1
1.2 课程设计要求.....................................................................................................................1
1.3 课程设计任务.....................................................................................................................1
2 实验原理分析.................................................................................................................................2
2.1 实验原理框图.....................................................................................................................2
2.2 PCM 原理介绍.....................................................................................................................3
2.2.1 抽样(Sampling)........................................................................................................3
2.2.2 量化（quantizing）..................................................................................................3
2.2.3 A 压缩律：...............................................................................................................4
2.2.4 编码（Coding）......................................................................................................9
2.2 基带传输 PST 码.................................................................................................................9
2.3 循环码...............................................................................................................................10
2.3.1 循环码介绍.............................................................................................................10
2.3.2 循环码编码原理....................................................................................................12
2.3.3 循环码的纠错原理................................................................................................13
2.4 二进制频移键控（2PSK）调制与解调原理...................................................................15
2.4.1 数字调制技术......................................................................................................15
2.4.2 二进制相移键控（2PSK）基本原理 ..................................................................16
2.4.3 MATLAB 实现 2PSK 调制与解调 .......................................................................18
2.5 衰落信道............................................................................................................................18
3 MATLAB 软件仿真及结果.........................................................................................................19
3.1 MATLAB 简介..................................................................................................................19
3.2 发送端仿真结果与分析 ..................................................................................................19
3.2.1 仿真结果图 ............................................................................................................19
3.2.2 实验结果分析 .....................................................................................................24
4.小结..............................................................................................................................................25
参考文献..........................................................................................................................................26
附录：..............................................................................................................................................27
