<s>
In	O
probability	O
and	O
statistics	O
,	O
the	O
generalized	O
K-distribution	B-Algorithm
is	O
a	O
three-parameter	O
family	O
of	O
continuous	O
probability	O
distributions	O
.	O
</s>
<s>
K-distribution	B-Algorithm
is	O
a	O
special	O
case	O
of	O
variance-gamma	O
distribution	O
,	O
which	O
in	O
turn	O
is	O
a	O
special	O
case	O
of	O
generalised	O
hyperbolic	O
distribution	O
.	O
</s>
<s>
A	O
simpler	O
special	O
case	O
of	O
the	O
generalized	O
K-distribution	B-Algorithm
is	O
often	O
referred	O
as	O
the	O
K-distribution	B-Algorithm
.	O
</s>
<s>
In	O
this	O
derivation	O
,	O
the	O
K-distribution	B-Algorithm
is	O
a	O
compound	O
probability	O
distribution	O
.	O
</s>
<s>
This	O
two	O
parameter	O
formalization	O
is	O
often	O
referred	O
to	O
as	O
the	O
K-distribution	B-Algorithm
,	O
while	O
the	O
three	O
parameter	O
formalization	O
is	O
referred	O
to	O
as	O
the	O
generalized	O
K-distribution	B-Algorithm
.	O
</s>
<s>
The	O
modulus	O
of	O
z	O
,	O
|z|	O
,	O
then	O
has	O
K-distribution	B-Algorithm
.	O
</s>
<s>
K-distribution	B-Algorithm
arises	O
as	O
the	O
consequence	O
of	O
a	O
statistical	O
or	O
probabilistic	O
model	O
used	O
in	O
synthetic-aperture	B-Application
radar	I-Application
(	O
SAR	O
)	O
imagery	O
.	O
</s>
<s>
The	O
K-distribution	B-Algorithm
is	O
formed	O
by	O
compounding	O
two	O
separate	O
probability	O
distributions	O
,	O
one	O
representing	O
the	O
radar	O
cross-section	O
,	O
and	O
the	O
other	O
representing	O
speckle	O
that	O
is	O
a	O
characteristic	O
of	O
coherent	O
imaging	O
.	O
</s>
