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INTEGRITY MONITORING SYSTEM FOR SPACE-BASED NAVIGATION AND POSITIONING IN MALAYSIA Ooi Wei Han 1, Moslin S.I 1., Ahmad N. 1, Subari M.D. 1, Musa T.A. 2,

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Presentation on theme: "INTEGRITY MONITORING SYSTEM FOR SPACE-BASED NAVIGATION AND POSITIONING IN MALAYSIA Ooi Wei Han 1, Moslin S.I 1., Ahmad N. 1, Subari M.D. 1, Musa T.A. 2,"— Presentation transcript:

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

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

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

10 System Design & Architecture of Integrity Monitoring System

11 GNSS CORS CORS2CORS1 ANGKASA Web-Based GPS + GLONASS Satellite SISPELSAT SISP4SISP3SISP2SISP1 GPS + GLONASS Satellite U T M PROCESSING CENTRE Data Storage (TEQC Processor) (NANU Processor) (DGPS Processor) ANGKASA GNSS/DGPS INTEGRITY MONITORING CENTRE MULTI USER 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) INTERNET Data Storage / Web Server INTERNET Model-based Design

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

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

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

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

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

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

22 sign up sign up sign in AGENSI ANGKASA NEGARA ABOUT US Station Information main page news service SYSTEM LEVEL MONITORING GROUND LEVEL MONITORING USER LEVEL MONITORING Today Monitoring Today Discussion ISKANDARnet 1 Operated & maintained by UTM-GNSS & Geodynamics Research Group Station IDISK1 Location Block C02, FKSG, Universiti Teknologi Malaysia (UTM) ITRF 2008 Latitude1° N Longitude103° E Ellipsoidal Height m RSO Geoce ntric Easting m Northing m IGS Conve ntion GPS ReceiverTrimble 4700 GPS Antenna Trimble L1/L2 Micro-centred with Ground Plane TRM GP Com Radio-linkRTCM 2.0 channel 01 NTRIPIP: XXXXX.XXX.XXX More …. Geospatial World Forum May 2013, Beurs-World Trade Centre Rotterdam

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

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

25 sign up sign up sign in AGENSI ANGKASA NEGARA ABOUT US main page news service SYSTEM LEVEL MONITORING GROUND LEVEL MONITORING USER LEVEL MONITORING Today Monitoring Today Discussion Distance : km Accuracy : m (rms) Banting ISKANDARnet2 Insert coordinate or Base station Rover station Lat Long ddd.mm.ss 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 MALAYSIA end Maleisië


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