一本从C语言的角度讲述数字信号处理编程的书籍，对于数字信号处理中诸如DFT，FFT变换等非常重要的部分都有详细介绍，并附有C代码。-A perspective from the C language programming about books digital signal processing for digital signal processing such as DFT, FFT transform has a very important part of the details, a

FFT 变换，C源代码。FFT C source code (Simple radix-2)-FFT transform, C source code. FFT C source code (Simple radix-2).