目 录
1 引言............................................................................................................................1
2 基于 MATLAB 的 FFT 算法实现 ............................................................................2
2.1 系统总体流程图...............................................................................................2
2.2 FFT 运算规律及编程思想 ...............................................................................3
2.2.1 语音信号的采集.....................................................................................3
2.2.2 DIT-FFT 算法的基本原理 .....................................................................3
2.2.3 DIT-FFT 算法的运算规律及编程思想 .................................................5
3 Matlab 程序实现.......................................................................................................10
4 系统人机对话界面..................................................................................................13
4.1 GUI 简介.........................................................................................................13
4.2 界面设计........................................................................................................13
4.3 运行调试........................................................................................................14
5 心得体会..................................................................................................................16
参考文献......................................................................................................................17
附录Ⅰ..........................................................................................................................18
附录Ⅱ..........................................................................................................................21
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