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Download - fft phase demo - Montanasolar.physics.montana.edu/dana/ph566/fft_phase_demo.pdfTitle: fft_phase_demo.pptx Author: dana Created Date: 10/16/2019 9:09:07 PM

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  • €

    F[ f1(x,y)] = ˜ f 1(kx,ky ) = A1(kx,ky ) eiϕ1 (kx ,ky )

    €

    f1(x,y)

    x  

    y  

  • €

    F[ f1(x,y)] = ˜ f 1(kx,ky ) = A1(kx,ky ) eiϕ1 (kx ,ky )

    €

    f1(x,y)

    |k|-‐2.8  

  • €

    F[ f1(x,y)] = ˜ f 1(kx,ky ) = A1(kx,ky ) eiϕ1 (kx ,ky )

    €

    f1(x,y)

    €

    f2(x,y)

    €

    F[ f2(x,y)] = ˜ f 2(kx,ky ) = A2(kx,ky ) eiϕ 2 (kx ,ky )

  • €

    F[ f1(x,y)] = ˜ f 1(kx,ky ) = A1(kx,ky ) eiϕ1 (kx ,ky )

    €

    f1(x,y)

    €

    f2(x,y)

    €

    F[ f2(x,y)] = ˜ f 2(kx,ky ) = A2(kx,ky ) eiϕ 2 (kx ,ky )

    |k|-‐2.8  

  • €

    F[ f1(x,y)] = ˜ f 1(kx,ky ) = A1(kx,ky ) eiϕ1 (kx ,ky )

    €

    f1(x,y)

    €

    f2(x,y)

    €

    F[ f2(x,y)] = ˜ f 2(kx,ky ) = A2(kx,ky ) eiϕ 2 (kx ,ky )€

    ˜ g (kx,ky ) = A1(kx,ky ) eiϕ 2 (kx ,ky )

    €

    F −1[ ˜ g (kx,ky )] = g(x,y) → ?  

  • €

    F[ f1(x,y)] = ˜ f 1(kx,ky ) = A1(kx,ky ) eiϕ1 (kx ,ky )

    €

    f1(x,y)

    €

    f2(x,y)

    €

    F[ f2(x,y)] = ˜ f 2(kx,ky ) = A2(kx,ky ) eiϕ 2 (kx ,ky )€

    ˜ g (kx,ky ) = A1(kx,ky ) eiϕ 2 (kx ,ky )

    €

    F −1[ ˜ g (kx,ky )] = g(x,y) →


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