目 录
1 绪 论.....................................................................................................................................1
2 模拟通信系统基础理论.......................................................................................................3
2.1 模拟通信系统概述.....................................................................................................3
2.2 模拟通信系统中的线性调制.....................................................................................4
2.2.1 普通幅度调制（AM） ....................................................................................4
2.2.2 双边带幅度调制（DSB）...............................................................................8
2.2.3 单边带调制（SSB） .....................................................................................10
2.3 模拟通信系统中的非线性调制...............................................................................13
2.3.1 频率调制（FM）...........................................................................................13
2.3.2 相位调制（PM）...........................................................................................16
3 数字通信系统基础理论.....................................................................................................17
3.1 数字通信系统概述...................................................................................................17
3.2 数字通信系统调制解调原理...................................................................................18
3.2.1 二进制幅度键控(2ASK)................................................................................18
3.2.2 二进制频移键控(2FSK).................................................................................21
3.2.3 二进制相移键控(2PSK).................................................................................23
3.2.4 二进制差分相移键控(2DPSK)......................................................................26
4 模拟通信系统仿真平台总体设计.....................................................................................28
4.1 模拟通信系统仿真平台的功能...............................................................................28
4.2 系统总体设计...........................................................................................................28
4.3 总体设计参数...........................................................................................................29
4.4 模拟通信系统仿真实现...........................................................................................30
4.4.1 信号调制解调程序流程图.............................................................................30
4.4.2 普通调幅（AM）信号仿真 ..........................................................................31
4.4.3 双边带调幅（DSB）信号仿真.....................................................................33
4.4.4 单边带调幅（SSB）信号仿真 .....................................................................35
4.4.5 调频（FM）信号仿真...................................................................................37
4.4.6 调相（PM）信号仿真...................................................................................39
4.5 仿真结果分析...........................................................................................................41
