<s>
Airborne	B-Algorithm
ground	I-Algorithm
surveillance	I-Algorithm
(	O
AGS	O
)	O
refers	O
to	O
a	O
class	O
of	O
military	O
airborne	O
radar	B-Application
system	I-Application
(	O
Surveillance	O
aircraft	O
)	O
used	O
for	O
detecting	O
and	O
tracking	O
ground	O
targets	O
,	O
such	O
as	O
vehicles	O
and	O
slow	O
moving	O
helicopters	O
,	O
as	O
opposed	O
to	O
Airborne	O
early	O
warning	O
and	O
control	O
,	O
whose	O
primary	O
role	O
is	O
detecting	O
and	O
tracking	O
aircraft	O
in	O
flight	O
.	O
</s>
<s>
AGS	O
radar	B-Application
is	O
typically	O
a	O
medium	O
or	O
low	O
power	O
radar	B-Application
.	O
</s>
