fftshift

Shift the zero-frequency component to the center of the spectrum.

📝Syntax

Y = fftshift(X)
Y = fftshift(X, DIM)

📥Input Arguments

Parameter	Description
X	a vector, matrix or N-D array (double, single, integer).
DIM	axes over which to shift.

📤Output Arguments

Parameter	Description
Y	shifted array.

📄Description

fftshift(X) shift the zero-frequency component to the center of the spectrum.

💡Examples

M = [ 0.,  10.,  20.; 30.,  40., -40.; -30., -20., -10.]
fftshift(M)
fftshift(M, 1)

🔗See Also

🕔Version History

Version	Description
1.0.0	initial version