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frft2-python

discrete 1d and 2d fractional fourier transfrom in python

usage:

frft2d(mat,ax,ay)

  • mat: the numberic matrix to be transformed

  • ax,ay: the order of transform along x and y axis

  • returns the frft spectrum of mat

disfrft(f,a;p)

  • f: the discrete signal to be trasformed

  • a: the order of transform

  • p(optional): the order of approximation, equals to half of the length of f by default

  • returns the frft spectrum of f

this code is translated from its matlab version (and i actually dont know how the algorithm works xd), a senpai gave it to me and i dont know its origin.