fftshift

(/tools/hpmatlab/toolbox/matlab/datafun/fftshift.m)

Function Synopsis

y = fftshift(x)

Help text

FFTSHIFT Move zeroth lag to center of spectrum.
	Shift FFT.  For vectors FFTSHIFT(X) returns a vector with the
	left and right halves swapped.  For matrices, FFTSHIFT(X) swaps
	the first and third quadrants and the second and fourth quadrants.
	FFTSHIFT is useful for FFT processing, moving the zeroth lag to
	the center of the spectrum.

Cross-Reference Information

ceil           /tools/hpmatlab/toolbox/matlab/elfun/ceil.m
else           /tools/hpmatlab/toolbox/matlab/lang/else.m
elseif         /tools/hpmatlab/toolbox/matlab/lang/elseif.m
end            /tools/hpmatlab/toolbox/matlab/lang/end.m
if             /tools/hpmatlab/toolbox/matlab/lang/if.m
size           /tools/hpmatlab/toolbox/matlab/general/size.m

whitebg        /tools/hpmatlab/toolbox/matlab/graphics/whitebg.m
xcorr          /tools/hpmatlab/toolbox/signal/xcorr.m