下面是找到了基2 FFT蝴蝶旋转因子的Matlab代码。代码计算的 A 相角，在图1（c）和图2（c）所示，旋转因子的因素。我建议你开始8点DIT的FFT图1（a）通过运行代码然后运行图2中的代码为16点DIF FFT（一）。-Below is the Matlab code to find radix-2 FFT butterfly twiddle factors. The code computes the　A　phase angle factors that are used in the twiddle factors as shown in Figure 1(c) and Figure 2(c). I suggest you start by running the code for the 8-point DIT FFT in Figure 1(a) and then run the code for the 16-point DIF FFT in Figure 2(a).