ifftshift - Inverse FFT shift
Syntax
ifftshift(X)
ifftshift(X,dim)
Description
ifftshift(X) swaps the left and
right halves of the vector X. For matrices, ifftshift(X) swaps
the first quadrant with the third and the second quadrant with the fourth.
If X is a multidimensional array, ifftshift(X) swaps
"half-spaces" of X along each dimension.
ifftshift(X,dim) applies the ifftshift operation
along the dimension dim.
Note
ifftshift undoes the results of fftshift.
If the matrix X contains an odd number of elements, ifftshift(fftshift(X)) must
be done to obtain the original X. Simply performing fftshift(X) twice
will not produce X. |
See Also
fft, fft2, fftn, fftshift
 | ifftn | | ilu |  |
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