<s>
Several	O
techniques	O
can	O
be	O
used	O
to	O
move	O
signals	O
in	O
the	O
time-frequency	B-Algorithm
distribution	I-Algorithm
.	O
</s>
<s>
As	O
a	O
coincident	O
,	O
the	O
following	O
transformations	O
happen	O
to	O
have	O
the	O
motion	O
properties	O
in	O
the	O
time-frequency	B-Algorithm
distribution	I-Algorithm
.	O
</s>
<s>
Shifting	O
on	O
time	O
axis	O
is	O
like	O
horizontal	O
shifting	O
in	O
time-frequency	B-Algorithm
distribution	I-Algorithm
.	O
</s>
<s>
On	O
another	O
hand	O
,	O
shifting	O
on	O
the	O
frequency	O
axis	O
would	O
be	O
vertical	O
shifting	O
in	O
time-frequency	B-Algorithm
distribution	I-Algorithm
.	O
</s>
<s>
STFT	B-Algorithm
,	O
Gabor	O
:	O
</s>
<s>
WDF	B-Algorithm
:	O
</s>
<s>
STFT	B-Algorithm
,	O
Gabor	O
:	O
</s>
<s>
WDF	B-Algorithm
:	O
</s>
<s>
This	O
results	O
in	O
an	O
amplitude	B-Device
modulation	I-Device
signal	O
.	O
</s>
<s>
STFT	B-Algorithm
,	O
Gabor	O
:	O
</s>
<s>
WDF	B-Algorithm
:	O
</s>
<s>
STFT	B-Algorithm
,	O
Gabor	O
:	O
</s>
<s>
WDF	B-Algorithm
:	O
</s>
<s>
STFT	B-Algorithm
,	O
Gabor	O
:	O
</s>
<s>
WDF	B-Algorithm
:	O
</s>
<s>
STFT	B-Algorithm
,	O
Gabor	O
:	O
</s>
<s>
WDF	B-Algorithm
:	O
</s>
<s>
Many	O
transforms	O
has	O
the	O
property	O
of	O
rotations	O
,	O
like	O
Gabor-Wigner	O
,	O
Ambiguity	B-Algorithm
function	I-Algorithm
(	O
counterclockwise	O
)	O
,	O
modified	O
Wigner	O
,	O
Cohen	O
's	O
class	O
distribution	O
.	O
</s>
<s>
STFT	B-Algorithm
,	O
Gabor	O
,	O
and	O
WDF	B-Algorithm
is	O
introduced	O
in	O
here	O
.	O
</s>
<s>
STFT	B-Algorithm
:	O
</s>
<s>
WDF	B-Algorithm
:	O
</s>
<s>
STFT	B-Algorithm
:	O
</s>
<s>
WDF	B-Algorithm
:	O
</s>
<s>
STFT	B-Algorithm
,	O
Gabor	O
:	O
</s>
<s>
WDF	B-Algorithm
:	O
</s>
<s>
STFT	B-Algorithm
,	O
Gabor	O
:	O
</s>
<s>
WDF	B-Algorithm
:	O
</s>
<s>
STFT	B-Algorithm
,	O
Gabor	O
:	O
</s>
<s>
WDF	B-Algorithm
:	O
</s>
