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Ooi Wei Han1, Moslin S.I1., Ahmad N.1, Subari M.D.1,

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Presentation on theme: "Ooi Wei Han1, Moslin S.I1., Ahmad N.1, Subari M.D.1,"— Presentation transcript:

1 INTEGRITY MONITORING SYSTEM FOR SPACE-BASED NAVIGATION AND POSITIONING IN MALAYSIA
Ooi Wei Han1, Moslin S.I1., Ahmad N.1, Subari M.D.1, Musa T.A.2, Othman R.2, Omar A.H.2, Musliman I.A.2 1National Space Agency (ANGKASA)  Space Application and Technology Development Unit 2Universiti Teknologi Malaysia GNSS and Geodynamics Research Group Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

2 Contents Introduction Project Aims, Objectives & Scope of Work
The GNSS CORS & Collaboration Design & Architecture of GNSS Integrity Monitoring System Infrastructure Setup Preliminary Output Concluding Remarks Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

3 GPS, GLONASS, GALILEO, COMPASS, QZSS
Introduction In Malaysia, navigation technology has become an essential tool in various applications for positioning in military and civilian sectors. With the full operational constellation and modernization of the GNSS such as GPS and GLONASS, the accuracy of positioning has definitely improved. Malaysia GPS, GLONASS, GALILEO, COMPASS, QZSS Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

4 The Signal Integrity GNSS signals are weak and easily be interrupted.
Affected by variety types of errors at various stages Such as: - satellite clock and orbit errors; - ionospheric and tropospheric delays; - receiver clock error; - possible cycle slips; - multipath; - and etc. Several incidents indicated signals in failure mode and resulted significant position errors. Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

5 L.Heng et. al., 2010 Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

6 Aims & Objectives The National Space Agency (ANGKASA) in collaboration with universities, government and industries sectors is currently in the midst of developing an integrity monitoring system for space-based positioning in Malaysia. The aim of this project is to provide an integrity monitoring system for space-based navigation and positioning in Malaysia. This aim embarks three objectives: To establish GPS/GNSS CORS network over Peninsular Malaysia To determine on integrity and reliability of GNSS and DGPS signals over country To provide a warning of any signal anomalies at all time. Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

7 Scope of Work Set-up GNSS ground stations with real-time data streaming. Set-up control centre at ANGKASA & processing centre at UTM. Set-up database for GNSS & DGPS integrity monitoring system. Set-up web-based service for GNSS & DGPS integrity monitoring system. Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

8 The GNSS CORS Peninsular Malaysia Main Processing Centre
Langkawi National Observatory (ANGKASA) Kota Bharu Malaysian Metrological Department (ANGKASA/MMD) COMING SOON Penang (MARDI, Malaysia) Bagan Datoh Sistem Pelayaran Satelit (SISPELSAT, JLM) Kuantan Sistem Perlayaran Satelit (SISPELSAT, JLM) Kepong, Kuala Lumpur (Enviro Land Service) Shah Alam, Selangor (UiTM) Main Processing Centre ISKANDAR Malaysia UTM, MPKU, PTP, KKPG National Space Centre (ANGKASA), Selangor Melaka Sistem Pelayaran Satelit (SISPELSAT, JLM) COMING SOON Pontian, Johor MARDI, Malaysia) Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

9 CORS Collaboration: Government Agencies, Universities, & Industry
Data Sharing & Combine Expertise! Opportunities! Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

10 System Design & Architecture of Integrity Monitoring System
Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

11 Model-based Design ANGKASA GNSS/DGPS INTEGRITY MONITORING CENTRE U T M
GPS + GLONASS Satellite GNSS CORS U T M PROCESSING CENTRE Data Storage (TEQC Processor) (NANU Processor) (DGPS Processor) Data Storage / Web Server CORS1 CORS2 INTERNET GPS + GLONASS Satellite INTERNET SISPELSAT SISP4 SISP3 SISP2 SISP1 MULTI USER INTERNET ANGKASA Web-Based SYSTEM LEVEL MONITORING (NANUs for GPS & GLONASS) GROUND LEVEL MONITORING (signal availability, range monitoring ionosphere, cycle slip, missing observation, etc.) USER LEVEL MONITORING (DGPS correction – satellite by satellite, SISPELSAT)

12 System Architecture Collaborators NTRIP CASTER INTERNET
DGPS Processor GPS/GNSS Data Quality Processor Network-RTK (VRS) Processor DGPS Processor Main Database IOMOS Processor GPS Seismic Processor INTERNET Collaborators Real Time User Web Server

13 Infrastructure Setup Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

14 Site Reconnaissance & CORS Installation
Malaysia Meteorological Dept. Kota Bharu Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

15 SISPELSAT CORS at Malaysia Marine Department, Melaka
Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

16 Infrastructure Setup: The Control Centre
Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

17 Infrastructure Setup: Communication
USER APPLICATION User Real Time User Post-Process User (RINEX File Download) (RTCM File Download) Control Centre Processor Server NTRIP Caster Main Database Web Server /SMS/Social Network TCP/IP NTRIP Server NANU JLM ISKANDARnet ANGKASA TCP/IP The Integrity Monitoring System utilizes Internet and NTRIP technology

18 Infrastructure Setup: Database System
Uses MySQL as the database management system. Data for every second will be stored - need a huge data storage to keep the large data size. Database system should be robust and flexible to handle various emergencies and does not crash when error occurs. Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

19 Preliminary Output Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

20 Today Monitoring Today Discussion SYSTEM LEVEL MONITORING
> AGENSI ANGKASA NEGARA > ABOUT US main page news service sign up sign in Today Monitoring SYSTEM LEVEL MONITORING GROUND LEVEL MONITORING USER LEVEL MONITORING Today Discussion Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

21 Today Monitoring Today Discussion SYSTEM LEVEL MONITORING
AGENSI ANGKASA NEGARA ABOUT US main page news service sign up sign in Today Monitoring SYSTEM LEVEL MONITORING GROUND LEVEL MONITORING Please click the station for the information USER LEVEL MONITORING Today Discussion Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

22 ISKANDARnet 1 Today Monitoring Today Discussion More ….
AGENSI ANGKASA NEGARA ABOUT US main page news service sign up sign in Station Information ISKANDARnet 1 Operated & maintained by UTM-GNSS & Geodynamics Research Group Today Monitoring SYSTEM LEVEL MONITORING Station ID ISK1 Location Block C02, FKSG, Universiti Teknologi Malaysia (UTM) ITRF 2008 Latitude 1° 33’ ” N Longitude 103° 38’ ” E Ellipsoidal Height 61.551 m RSO Geocentric Easting  m Northing  m IGS Convention GPS Receiver Trimble 4700 GPS Antenna Trimble L1/L2 Micro-centred with Ground Plane TRM GP Com Radio-link RTCM 2.0 channel 01 NTRIP IP: XXXXX.XXX.XXX GROUND LEVEL MONITORING USER LEVEL MONITORING Today Discussion More …. Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

23 ISKANDARnet1 Today Monitoring Today Discussion SYSTEM LEVEL MONITORING
AGENSI ANGKASA NEGARA ABOUT US main page news service sign up sign in ISKANDARnet1 Today Monitoring Satellite Availability & signal strength GNSS signal quality DGPS Corrections SYSTEM LEVEL MONITORING GPS L1 Reliability of satellite for DGPS correction GROUND LEVEL MONITORING USER LEVEL MONITORING DGPS correction latency Today Discussion Variation of fine PRC GPS L2 Alert ! DGPS corrections from Satellite PRN 31 & 32 are out of range Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

24 Today Monitoring Today Discussion Base station Rover station
AGENSI ANGKASA NEGARA ABOUT US main page news service sign up sign in Base station Please click the station Rover station Today Monitoring Please click the station or SYSTEM LEVEL MONITORING Insert coordinate GROUND LEVEL MONITORING Lat ddd.mm.ss USER LEVEL MONITORING Long ddd.mm.ss Today Discussion Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

25 Today Monitoring Distance : 338.33 km Accuracy : 0.325 m (rms)
AGENSI ANGKASA NEGARA ABOUT US main page news service sign up sign in Base station Banting Rover station Today Monitoring ISKANDARnet2 or SYSTEM LEVEL MONITORING Insert coordinate GROUND LEVEL MONITORING Lat ddd.mm.ss USER LEVEL MONITORING Long ddd.mm.ss Distance : km Accuracy : m (rms) Today Discussion Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

26 User Level Monitoring – DGPS Module
Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

27 Concluding Remarks Three different services will be make available – to monitor satellite anomalies, signals at CORS, DGPS correction and alert to user. The project show excellent collaborations amongst government agencies, universities and industry in developing the integrity monitoring system for space-based navigation and positioning in Malaysia. Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

28 end MALAYSIA Maleisië


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