Calculate Wigner distribution 1.0

W = mywigner(Ex)W = output Wigner distributionEx = Input electric field (MUST be a column vectorNotes:W = Int(-inf..inf){E(x+y)E(x-y)exp[2ixy]}E(x+y) & E(x-y) are calculated via a FFT (fast Fourier transform) using theshift theorem. The integration is performed via a FFT. Thus it is important for the data to satisfy the sampling theorem:dy = 2*pi/X X = span of all x-values dy = y resolutiondx = 2*pi/Y Y = span of all y-values dx = x resolutionThe data must be completely contained within the range x(0)..x(N-1) & y(0)..y(N-1) (i.e. the function must fall to zero within this range).

Requirements:	No special requirements
Platforms:	Matlab
Keyword:	Column,  Completely,  Contained,  Electric,  Field,  Function,  Important,  Integration,  Performed,  Range,  Resolutiondx,  Resolutionthe,  Sampling,  Satisfy,  Theoremdy,  X0xn1,  Xvalues,  Y0yn1,  Yvalues
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