目录
一、实验目的.........................................................................................................................2
二、实验内容与要求.............................................................................................................3
三、实验原理.........................................................................................................................3
1、双音多频（DTMF）信号 ...........................................................................................3
2、戈泽尔（Goertsel）算法.............................................................................................3
3、用 Goertzel 算法实现 DTMF 检测.............................................................................5
四、实验过程.........................................................................................................................6
1、DTFT 信号的生成和播放............................................................................................6
2、添加噪声和戈泽尔算法实现.......................................................................................6
3、接收端检测...................................................................................................................6
4、GUI 界面设计 ..............................................................................................................6
五、实验结果与分析.............................................................................................................7
1、实验结果.......................................................................................................................7
2、结果分析.......................................................................................................................8
附录 A：.................................................................................................................................8
附录 B：...............................................................................................................................11
