In recent years, the fractional Fourier transform ( FRT) was presented and has attracted a lot of attention for the optical information processing. 分数傅里叶变换(FRT)的提出引起了人们的关注并将它引入到光学信息处理领域。
In the under-sampling of pass-band signal, the fractional ratio Sampling Rate Conversion ( SRC) is a procedure which requires a lot of computations. 带通信号的欠采样中,分数比采样率转换是一个颇费计算量的复杂过程。