19. +3. RTK
n 1994 RTK
Trimble4000SSE 2700 Ashtech Z-12 2400
n
n
n L1/L2 2
n 2 1
n
n 1 100 200
n →
n
n 1300 GNSS
n VRS
2
GPS衛星
基準局
GPS受信機
GPSアンテナ
基準点
GPSアンテナ
三脚
移動局
整準台
PC
モバイルルータ
Internet
モバイルルータ
PC
GPS受信機
ThinkPad
19
23. +
Tokyo University of Marine Science and Technology
Laboratory of Satellite Navigation Engineering
BeiDou/Compass 2012 5
6
IGSO 5
04/29 MEO
6 MEO
2012 GEO
IGSO
2010/08/01~2011/12/02
G5
02/24 GEO
2012
2020
35
4.
BeiDou
H24.5.16SPAC
23
37 2018/10/31
• GPS 6 4
MEO 22
• GEO
6
• 8 IGSO 9
web
GNSS View
24. +
4.
QZSS
n
n 8 3 70 1
n 4 8 3 1
2018/11/1
→ 7 2023
n
n
n L6, L1S
n Original signal
n L6E(MADOCA-PPP)
n L6D(CLAS)
n L1S(SLAS, DC Report)
24
HP
2 4
IQ IIQ IIG
1 2 1
L1C/A
157
5.42
MH
z
L1C
L1S
L1Sb - -
2020
SBAS
L2C
1227.6
0MHz
L5 117
6.45
MH
zL5S -
L6
1278.7
5MHz
S - -
2GHz
25. +4.
QZSS 1
25
s k Pbe nu b
LM P I P o RT
cs
B I 1
b -36 4 66
V W BB G D -3
x 5 /x
5 /0. 8 F 5 /326
yiQr ls O
h
Z KS a m
Z b
Zs Pbe bLM P I o
30. +
5. RTK
An Open Source Program Package for GNSS Positioning
RTKLIB
n PC Windows
n → RTK
n RTK
n
n PC
n
n RTK
n
n Ver.2.4.2 BSD 2-clause license 2 BSD
n
n
n →
n
→
30
39. +7
PPP PPP-AR DF-RT-PPP
n
n
n MADOCA Ntrip 2
n MADOCA-PPP John Deere StarFire,Trimble RTX,Veripos Terrastar, etc.
n MADOCA (Multi-GNSS Advanced Demonstration tool for Orbit and Clock Analysis)
n PPP
n GPS, GLONASS, Galileo, QZSS
n 100
n /
n
n PPP 15 , 4cm
n PPP-AR 15 2cm
n 1 → PPP-RTK
39