目 录
摘要................................................................................................................................1
Abstract ..........................................................................................................................2
1 绪论............................................................................................................................3
2 设计原理....................................................................................................................4
2.1 MATLAB 仿真软件............................................................................................................4
2.2 FM 调制原理.......................................................................................................................4
2.3 FM 解调原理.......................................................................................................................6
2.3.1 两种解调方式...........................................................................................................6
2.3.2 解调过程分析...........................................................................................................7
2.4 抗噪声性能分析.................................................................................................................7
3 仿真实现....................................................................................................................9
3.1 FM 调制仿真.......................................................................................................................9
3.1.1 正弦波的情况...........................................................................................................9
3.1.2 三角波的情况.........................................................................................................13
3.2 FM 解调仿真.....................................................................................................................16
3.3 抗噪声性能........................................................................................................................20
4 结果分析..................................................................................................................21
4.1 仿真结果分析....................................................................................................................21
4.2 仿真设计的完整代码.......................................................................................................22
5 总结..........................................................................................................................23
参考文献......................................................................................................................24
