Scilab Function

mfft - multi-dimensional fft

Calling Sequence

[xk]=mfft(x,flag,dim)

Parameters

Description

FFT for a multi-dimensional signal

For example for a three dimensional vector which has three points along its first dimension, two points along its second dimension and three points along its third dimension the row vector is arranged as follows

     x=[x(1,1,1),x(2,1,1),x(3,1,1),
        x(1,2,1),x(2,2,1),x(3,2,1),
              x(1,1,2),x(2,1,2),x(3,1,2),
              x(1,2,2),x(2,2,2),x(3,2,2),
                    x(1,1,3),x(2,1,3),x(3,1,3),
                    x(1,2,3),x(2,2,3),x(3,2,3)]
   

and the dim vector is: dim=[3,2,3]

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