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h_don

гæ (³õÈëÎÄ̳)

[ÇóÖú] Mathematica

n = 1024;
k = 8;
start = Table [Exp[I*2*Pi*Random[]], {n/k}, {n/k}];
scatterarray = PadRight[start, {n, n}];
specklefield = Fourier[scatterarray];
speckleintensity = Abs[specklefield]^2;
ListLinePlot[speckleintensity,Mesh->False]

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