Palmido Sochongdo
Chojin
Ochongdo
Chumundo
Marado Sohuksando
Yongdo Homigot
Ullungdo Dokdo Chumunjin
Muju Seongju ChunCheon
Yongju Pyeongchang
Chungju
Dead-zone Area Maritime DGPS Ref. Station Inland DGPS Ref. Station
Inland DGPS Ref. Station under construction Daejeon
DGPS
.
4 .
DGPS .
) ( )
( 2
1
1 ai xj x ai yj y
i i
j=∇ + − + −
∇
n n i
n
i
ix ax a x a x a x
a
x=
∑
= + + + +=
3 ...
3 2 2 1 1 1
n n i
n
i
iy ay a y a y a y
a
y=
∑
= + + + +=
3 ...
3 2 2 1 1 1
n n
i
i a a a a
a = + + + +
=
∑
=
...
1 1 2 3
1
⎥⎥
⎥⎥
⎥⎥
⎦
⎤
⎢⎢
⎢⎢
⎢⎢
⎣
⎡
∇
−
∇
∇
−
∇
∇
−
∇
∇
−
∇
⎥=
⎦
⎢ ⎤
⎣
⎡ −
i i r
i i
i i
i i
TG
a G a
1 1 4
1 3
1 2
1 2
1 ( )
M
x1
x xj= j−
∆
,
∆yj =yj−y1i
∇j
Beacon Ant
RF signal
DGPS Beacon Receiver #1 DGPS Beacon Receiver #2 DGPS Beacon Receiver #3 PRC
PRC PRC
Regenerating PRC
GPS Ant
GPS Receiver GPS Raw Data
G matrix
Carrier Smoothing
DGPS Positioning Beacon
Ant
RF signal
DGPS Beacon Receiver #1 DGPS Beacon Receiver #1 DGPS Beacon Receiver #2 DGPS Beacon Receiver #2 DGPS Beacon Receiver #3 DGPS Beacon Receiver #3 PRC
PRC PRC
Regenerating PRC
GPS Ant
GPS Receiver GPS Raw DataGPS Raw Data G matrix G matrix
Carrier Smoothing
DGPS Positioning