Hua J, Liu L, Li G
Appl Opt. 1997 Nov 10;36(32):8490-2. doi: 10.1364/ao.36.008490.
The scaled fractional Fourier transform is suggested and is implemented optically by one lens for different values of phi and output scale. In addition, physically it relates the FRT with the general lens transform-the optical diffraction between two asymmetrically positioned planes before and after a lens.
提出了缩放分数傅里叶变换，并通过一个透镜针对不同的φ值和输出缩放进行光学实现。此外，从物理角度讲，它将分数傅里叶变换与一般透镜变换联系起来——透镜前后两个非对称放置平面之间的光学衍射。
