
71-11Airborne Radiometers to Measure Electromagnetic Radiation
axis of rotation. e polarimetric scanning radiometer (PSR) (Stankov et al., 2008) allows both cross-
track
an
d
co
nical
sc
anning
. Si
milarly,
th
e
mi
crowave
ai
rborne
ra
diometer
sc
anning
sy
stem
(M
ARSS)
(M
cGrath
a
nd
H
ewison,
2
001)
i
s
o
perated
i
n
a
n
e
xternal
p
od
.
e be
am
wi
dth
sh
ould
be li
mited
to a fe
w
de
grees
. e
refore,
th
e
an
tenna
siz
e
be
comes
re
latively
la
rge
(u
p
to 0.5 m fo
r
<1
0
GH
z),
wh
ich
o
en
pr
oves
to be a li
miting
fa
ctor
fo
r
th
e
op
eration
on a sm
aller
ai
rcra
. Fl
ight
al
titude
an
d
an
tenna
be
am
wi
dth
de
termine
th
e
sp
atial
re
solution
of th
e
ob
servations
of
th
e
Ea
rth’s
su
rface
. Fo ...