利用分裂基算法求实序列 的DFT， 的虚部赋值为零。-Split-radix algorithm for the use of realistic sequence of DFT, the imaginary part of the assignment to zero.

执行分裂基(split-radix)频率抽取(DIF)FFT算法,希望为同仁提供便利。-Implementation of split-based (split-radix) decimation in frequency (DIF) FFT algorithm in the hope that my colleagues facilitated.