中文说明：
我最近在研究frft-分数阶傅里叶变换的数值计算问题，主要是Ozaktas提出的采样型算法，以及Pei 等提出的采样型算法。
English Description：
Recently, I have been studying the numerical calculation of FRFT fractional Fourier transform, mainly the sampling algorithm proposed by ozaktas and the sampling algorithm proposed by Pei et al