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ProDDAGE Programme for the Development and Demonstration of Applications for Galileo and EGNOS Proddage Generic Material.

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Presentation on theme: "ProDDAGE Programme for the Development and Demonstration of Applications for Galileo and EGNOS Proddage Generic Material."— Presentation transcript:

1 ProDDAGE Programme for the Development and Demonstration of Applications for Galileo and EGNOS Proddage Generic Material

2 Types of Navigation Celestial –The use of the stars, sun and time to calculate positions Radio Navigation –Land based e.g. Loran C –Satellite Based e.g. GPS

3 History of Satellite Navigation TRANSIT / TSIKADA DNSS –Timation –System 621B NAVSTAR GPS GLONASS

4 GPS Multiple series of satellites provide the current constellation Newer satellites have better clocks and are able to continue operating automatically without contact from the ground stations Continual replenishment of the satellites is ongoing

5 GPS Current Status Full constellation in operation Continuing replenishment of old satellites –Some satellites have lasted well outside of their design life

6 GLONASS Russian global satellite navigation system Very similar to GPS concept Full Constellation expected in 2007

7 GLONASS Current Status GLONASS programme to continue Replenishment of satellites is underway Future of the system is assured for military and civilian purposes

8 GPS / GLONASS GPSGLONASS Nominal No. of Satellites24 Operational Satellites (end of 2000) 928 Orbital Planes3 (seperated by 120 o ) 6 (separated by 60 o ) Satellites per orbital plane8 (equally spaced)4 (unequally spaced) Orbital Radius25510 km26560km Inclination of orbital planes64.8 o 55 o Revolution Period~11h16~11h 58 min Nominal Eccentricity00 Signal Separation TechniqueFDMACDMA Reference SystemPZ-90WGS-84 Time ReferenceUTC (SU)UTC (USNO) Initial Design Differences

9 Current Use of Satellite Navigation Markets –Aviation –Maritime –Road –Rail –LBS –Professional

10 ProDDAGE Programme for the Development and Demonstration of Applications for Galileo and EGNOS Space Based Augmentation Systems

11 WAASEGNOSMSAS

12 Europe - EGNOS

13 US - WAAS Designed for Aviation Industry Enhanced Accuracy, Integrity and Continuity Initial Operating Capability (IOC) July 2003

14 Japanese MSAS

15 India - GAGAN GPS and GEO Augmented Navigation 1 Geostationary Satellite India based Ground Reference Stations Interoperability with EGNOS, MSAS & WAAS

16 ProDDAGE Programme for the Development and Demonstration of Applications for Galileo and EGNOS EGNOS

17 ESA –System Design –Development –Qualification & Technical Validation European Commission –Land User Requirements –Satellite Communications –User Equipment EUROCONTROL –Civil Aviation Requirements –Operational Testing and Validation

18 EGNOS Programme & Schedule

19 EGNOS System Architecture Satellites: Geostationary, GPS & GLONASS Users 34 RIMS4 MCC 7 NLES

20 EGNOS Ground Segment MCC RIMS NLES

21 EGNOS Measured Accuracies (Sept ) Recorded over a 24h period Less than 1m horizontal accuracies recorded Vertical accuracies of 1-2m (well below the 7.6m specification LisbonToulouseRomeBrusselsParis HNSE 95% 1.2m0.9m1.1m0.8m1.0 VNSE 95% 1.7m1.4m1.2m1.7m1.3

22 EGNOS Projects

23 EGNOS SISNeT

24 EGNOS Message Server 24h/24h Archive of EGNOS Messages Broadcast messages are stored in hourly text files New Possibilities –Evaluation of EGNOS performance –Assessment of EGNOS at IGS Sites –Able to post process data with conventional GPS receivers –Test EGNOS enabled receivers

25 EGNOS Data Access Service

26 EGNOS - Extensions Initial MRD developed in 1998 New Developments in the GNSS Industry –Galileo –GPS Modernisation –New Signals –Launch of WAAS EGNOS V2 Concept Developed

27 EGNOS Evolution Plans Three EGNOS Versions conceived in EGNOS v2.1 End 2006 EGNOS products over non-GEO data links (INSPIRE) Extension to MEDA and East of Europe Message Type 02 Extension EGNOS v2.2 End 2007 EGNOS MT 28 Extension in Africa Modernised RIMS receivers SAR return link EGNOS v2.3 End 2008 L5 standards and L5 GEO broadcast L1/L5/Galileo enhanced RIMS receivers Step 1Step 2

28 EGNOS & Galileo First steps for Europe in the field of satellite navigation Precursor to Galileo Allows early application development Testing of prototype business models and concepts

29 ProDDAGE Programme for the Development and Demonstration of Applications for Galileo and EGNOS Local Elements

30 Differential GNSS

31 IALA DGNSS Performance

32 RTK GNSS

33 Assisted GNSS

34 ProDDAGE Programme for the Development and Demonstration of Applications for Galileo and EGNOS Limitations and Issues with GNSS

35 Shortfalls & Limitations Interference Jamming Accuracy Integrity Availability Multipath Power

36 Technical Issues Geometry –Current Systems –Galileo Good GeometryBad Geometry

37 Operational Issues Availability –Blocked Signals Urban Areas Trees Underground Continuity

38 Safety Issues Receiver Autonomous Integrity Monitoring (RAIM) Ground Integrity Channel (GIC) Backup Systems Common Mode

39 Regulatory Issues Applied for GNSS use in safety applications MUSSST Study –Methods to authorise for operational use –Specification of validation procedures –Safety case approach

40 Legal Issues Privacy Concerns Data Protection Evidence Time Stamping

41 ProDDAGE Programme for the Development and Demonstration of Applications for Galileo and EGNOS Other Positioning Methods

42 Other Positioning Methods & Enhancements Other methods of positioning that can be combined with GNSS are as follows: –Pseudolites –Terrestrial Radio Navigation –Mobile Telecommunication Positioning –Other Sensors

43 Pseudolites Ground Based Satellites GPS-like signals Provide additional ranges to enhance positioning in difficult operating environments

44 eLoran (Terrestrial System) Alternative Positioning method to GPS eLoran incorporates the latest: –Receiver –Antenna –Transmission Technology Enhanced systems can now provide accuracies of 8-20m

45 Mobile Phone Positioning For use in the provision of Location Based Services Network Based Solutions –PDE –Angle of Arrival –Time of Arrival Handset Based Techniques –SIM –E-OTD

46 Other Systems Gyrocompass Inertial Measurement Units Magnetometers Digital Map Digital Elevation Model Radar etc.

47 ProDDAGE Programme for the Development and Demonstration of Applications for Galileo and EGNOS Future Systems

48 GPS III Enhance the overall GPS system Continuing development in response to military and civilian needs Enhanced Anti-Jam Capabilities Improved security, accuracy and reliability

49 Future GLONASS GLONASS K –Integrity –Search and Rescue Modernisation of Russian Geodetic Network India may become a partner in the future of the GLONASS programme

50 QZSS QZSS will bring Value added services for mobile users by combining communications, broadcasting, and positioning. Nationwide coverage is available since the QZSS is directly overhead.

51 Future WAAS Next phase planned for 2008 Increase coverage, continuity and availability Additional geostationary satellites to be secured to ensure availability

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