一种新的分数阶Fourier时频图示法

分数阶Fourier（FRFT）是传统Fourier的广义形式。分数阶Fourie域（FRFD）是一个统一的时频变换域，分数阶Fourier变换是角度为口的时频面旋转。随着角度α从0逐渐增加到π/2，分数阶Fourier变换展示出信号从时域到频域的全过程。本文依据分数阶FOUrier变换的定义，随着角度α的变化给出了一种新的更为直观的分数阶Fourier的时频图示方法，以供读者参考。

A new time-frequency diagram of the fractional foureier transform

The fractional Fourier transform(FRFT) is a generalization of the classical Fourier transform(FT).The fractional Fourier domain(FRFD) is a uniform time-frequency transform domain,it can be interpreted as a rotation by an angle in the time-frequency plane.With the rotation of the angle,from 0 to,the FRFT brings forth the whole changing processing of a signal,from time domain to frequency domain.In this paper,according to the definition of the FRFT,with the rotation of the angle,a new time-frequency diagram o...