BeiDou Demonstration Project in Korea - Initial Results · 2012-11-22 · 7th Meeting of the ICG...
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BeiDou Demonstration Project in Korea - Initial Results November 5, 2012 November 5, 2012 Sang Jeong Lee Sang Jeong Lee National GNSS Research Center National GNSS Research Center Chungnam National University Chungnam National University
Transcript of BeiDou Demonstration Project in Korea - Initial Results · 2012-11-22 · 7th Meeting of the ICG...
BeiDou Demonstration Project in Korea- Initial Results
November 5, 2012November 5, 2012
Sang Jeong LeeSang Jeong LeeNational GNSS Research CenterNational GNSS Research CenterChungnam National UniversityChungnam National University
7th Meeting of the ICG
Congratulations!
Successful launch of the 16th Beidou satellite into space at 11:33 p.m. Beijing Time, October 25 2012
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BEIDOU Demonstration Project in Korea
Assessment of Beidou performance in KoreaA typical international cooperation for promoting BEIDOUNational GNSS Research CenterIn cooperation with Shanghai Jiao Tong University
Supported by Beidou office(CSNO)
Three applicationsNavigation using CDGPS (NGRC, KARI)Surveying/mapping (NGRC, KASI)Timing (NGRC, KRISS)
Two-phase pilot project1st phase: Basic assessment including feasibility study (2012)2nd phase: Detail assessment (2013)
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Performance Assessment of Beidou and/or GPS
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Performance Evaluation of Beidouin the 1st phase
CDGPSusing single Beidou RS
CDGPSCDGPSusing single Beidou RS using single Beidou RS
Signal Acquisition and Performance Analysis
in Urban Valley
Signal Acquisition and Signal Acquisition and Performance Analysis Performance Analysis
in Urban Valleyin Urban Valley
CDGPS using Beidou RS Network
CDGPS CDGPS using Beidou RS Networkusing Beidou RS Network
Single Ref. Main Ref.
Sub. Ref.
Sub. Ref.Sub. Ref.
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Plans for 1st Phase
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End of November 2012
Mapping/Surveying
Navigation/timing
Applications
Raw dataRTCM, NTRIP
S/W Testing
DGPS sites
Communications
H/W Setup
+ Equipment
Processing S/W
End of December 2012or
End od January 2013
End of October 2012
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System Configuration
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NDGPS ReferenceStations (4)
Communication Equipment· VPN· Router and Switch (>8 Port)· TCP/IP Access via Internet
Server (2 or 3)- Server for Beidou data
archiving · For providing post-time 1Hz data to SJTU
- Server for data processing· RTCM data to the NTRIPCaster
- Web server · Data contribution to GNSSusers via Web access
- Server Cabinets (or Racks)
Accessories- UPS Rack Mount
· to protect equipment
HardwareConfiguration
HardwareHardwareConfigurationConfiguration
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Planned RS Network for Field Test
The Distance between the NDGPS Reference Stations is 71km~108kmiGMAS site at KARI or KASI (Daejeon)
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Deajon (KARI)iGMAS
Deajon (KARI)iGMAS
ChungjuChungju
YeongjuYeongju
SeongjuSeongju
80 km
93 km
108 km
71 km
122 km
125 km
iGMAS : International GNSS Monitoring and Assessment Service
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Receivers delivered on 25th October, 2012
Zero baseline Test
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BeiDou M300 GNSS
Receiver Spec.
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Zero baseline test : DD code quality (L1, B1)
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GPS Code Measurement BeiDou Code Measurement
0 50 100 150 200 250 300 350 400 450 500-1.5
-1
-0.5
0
0.5
1
1.5
Epoch
DD
Mea
sure
men
ts [m
]
GPS DD Measurements
PRN14-PRN22PRN14-PRN25PRN22-PRN25
0 50 100 150 200 250 300 350 400 450 500-1.5
-1
-0.5
0
0.5
1
1.5
EpochD
D M
easu
rem
ents
[m]
Beidou DD Measurements
PRN1-PRN7PRN1-PRN10PRN7-PRN10
GPS Mean [m] Std. [m]
14-22 0.023 0.215
14-25 -0.018 0.210
22-25 -0.041 0.191
Beidou Mean [m] Std. [m]
1-7 0.064 0.245
1-10 0.029 0.287
7-10 -0.035 0.303
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Zero baseline test : DD CP quality (L1, B1)
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GPS Carrier Measurement BeiDou Carrier Measurement
0 50 100 150 200 250 300-0.02
-0.015
-0.01
-0.005
0
0.005
0.01
0.015
0.02
Epoch
DD
Mea
sure
men
ts [c
ycle
]
GPS DD Measurements
PRN14-PRN22PRN14-PRN25PRN22-PRN25
0 50 100 150 200 250 300-0.02
-0.015
-0.01
-0.005
0
0.005
0.01
0.015
0.02
EpochD
D M
easu
rem
ents
[cyc
le]
Beidou DD Measurements
PRN1-PRN7PRN1-PRN10PRN7-PRN10
GPS Mean [m] Std. [m]
14-22 0 0.004
14-25 0 0.004
22-25 0 0.004
Beidou Mean [m] Std. [m]
1-7 0 0.005
1-10 0 0.006
7-10 0 0.007
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On the roof of E2 building, CNU : about 50m baseline
Short Baseline Test (static)
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B (Rover)
A (Reference)
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Initial result of Short Baseline Test – dual frequencyAll the necessary information was not extracted from receivers
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BeiDou Only GPS + BeiDou
36.2185 36.2185 36.2185 36.2185 36.2185 36.2186 36.2186
127.2073
127.2074
127.2074
127.2075
127.2076
[RTK] BeiDou Horizontal Position
Latitude [deg]
Long
itude
[deg
]
36.2185 36.2185 36.2185 36.2185 36.2185 36.2186 36.2186
127.2073
127.2074
127.2074
127.2075
127.2076
[RTK] GPS+BeiDou Horizontal Position
Latitude [deg]
Long
itude
[deg
]
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Dynamic Test (urban canyon)
Receiver : Novatel Propak-v3, Post Process S/W : Waypoint
Forest Area #2 Forest Area #1
Building Area #1Forest Area #3
Forest Area #1
Forest Area #2
Forest Area #3
Building Area #1
Reference trajectory using NovAtel Receiver at CNU campus
Test Result
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Real time dynamic test using BeiDou Receiver – dual frequencyThe elevation angle of BeiDou SVs is higher
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GPS Only BeiDou Only GPS + BeiDou
127.204 127.2045 127.205 127.2055 127.206 127.2065 127.207 127.2075 127.208 127.2085 127.20936.218
36.219
36.22
36.221
36.222
36.223
[Standalone] GPS Horizontal Position
Longitude [deg]
Latit
ude
[deg
]
127.204 127.2045 127.205 127.2055 127.206 127.2065 127.207 127.2075 127.208 127.2085 127.20936.218
36.219
36.22
36.221
36.222
36.223
[Standalone] BeiDou Horizontal Position
Longitude [deg]
Latit
ude
[deg
]
127.204 127.2045 127.205 127.2055 127.206 127.2065 127.207 127.2075 127.208 127.2085 127.20936.218
36.219
36.22
36.221
36.222
36.223
Longitude [deg]
Latit
ude
[deg
]
[Standalone] GPS+BeiDou Horizontal Position
127.204 127.2045 127.205 127.2055 127.206 127.2065 127.207 127.2075 127.208 127.2085 127.20936.218
36.219
36.22
36.221
36.222
36.223
[Standalone] GPS Horizontal Position
Longitude [deg]
Latit
ude
[deg
]
127.204 127.2045 127.205 127.2055 127.206 127.2065 127.207 127.2075 127.208 127.2085 127.20936.218
36.219
36.22
36.221
36.222
36.223
Longitude [deg]
Latit
ude
[deg
]
[Standalone] BeiDou Horizontal Position
127.204 127.2045 127.205 127.2055 127.206 127.2065 127.207 127.2075 127.208 127.2085 127.20936.218
36.219
36.22
36.221
36.222
36.223
[Standalone] GPS+BeiDou Horizontal Position
Longitude [deg]
Latit
ude
[deg
]
Standalone Navigation
RTK Navigation
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Concluding Remarks
Initial results of BeiDou demonstration in KoreaZero baseline test signal quality of BeiDou & GPSStatic short baseline test positioning performance of BeiDou & GPSDynamic test navigation performance of BeiDou & GPS
Zero baseline testGPS signals looked like a little bit better than BeiDou signalsbut comparableBeiDou is well operated
Static short baseline test, Dynamic testComplete analysis was not possible since all the necessary information was not available from receiversNevertheless, benefits of BeiDou is clearly seen as expecteddue to the increased number of SV, higher elevation angle
Phase 1 will be finished by December 2012
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Expect contributions of BEIDOUto sustainable GNSS service
through international cooperation
Thank you for listening !
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