改进4f傅里叶光学系统实现平面分形的频谱放大和小波变换

Spectrum Enlargement and Wavelet Transform on Planar Fractal by Improved 4f Fourier Optical System

设计了一种改进的4f傅里叶光学信息处理系统,利用该系统实现对频谱面坐标尺度的放大和光学小波变换,其优点是有利于带通滤波器的制作和精确定位。并给出了谢尔宾斯基(Sierpinski)分形的傅里叶变换、小波变换及分维测量的实验结果。

An improved 4f Fourier optical system was designed and applied to enlarge the scale of spectrum and realize wavelet transform, which was helpful to the operation of the matched filter on the spectrum plane. The experimental results of Fourier transform and wavelet transform and the fractal dimension on Sierpinski fractal were given.