高阶循环累积量对信号进行识别，该文件代码完整，适合学习，可以直接更改来识别信号-Order cyclic cumulants of the signal recognition, the document code integrity, for learning, you can change to identify the signal directly

语音信号处理回声部分，这是我们的毕业设计，代码非常完整，而且已经运行过了，希望能对有需要的朋友带去帮助-Echo speech signal processing portion

可以对语音信号进行降噪处理,非常完整的工程，对于语音信号的初学者和需要学习c的人来说很方便(Voice signals can be noise reduction, very complete project, for voice signals for beginners and those who need to learn C is very convenient)