Global Navigation Satellite System 1 G N S S WEB-simulation.

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Presentation transcript:

Global Navigation Satellite System 1 G N S S WEB-simulation

Global Navigation Satellite System 2 Schedule Philip Wenting Short explanation Equipment, old and new Demonstration outside ? Questions? Please interrupt and ask!

Global Navigation Satellite System 3 Terminology is changing ! No longer GPS but GNSS

Global Navigation Satellite System 4 Now active GPS USA Global Positioning System S GLONASS Russia GLObal'naya NAvigatsionnaya Sputnikovaya Sistema

Global Navigation Satellite System 5 Future Compass ( Beidou-2 ) China (Ursa Maior) Galileo Europe

Global Navigation Satellite System 6 Regional IRNSS India Indian Regional Navigational Satellite System Beidou-1 China Doris France Doppler Orbitography and Radiopositioning Integrated by Satellite QZSS Japan Quasi-Zenith Satellite System

Global Navigation Satellite System 7 Technical information A satellite is a radio transmitter Distance to earth: km. Frequency and Wave length ( ± 20 cm.) With 28 satellites always 4 “visible”, and why 4?

Global Navigation Satellite System 8 Positions directly calculated from Satellite data are always wrong ! Why ?

Global Navigation Satellite System 9 Accuracy Standard up to 10 metres Differential up to 1 metre RTK few cm And almost everything in between, depending on the budget ! More money >> higher accuracy.

Global Navigation Satellite System 10 Global Navigation Satellite System Better results Averaging Correction from a geostationary satellite WAAS ( Wide Area Augmentation System) EGNOS ( European Geostationary Navigation Overlay Service) Radio beacon (Long distance) Base station (Short distance) Real position on a known point Virtual ( 06-GPS-Netwerk )

Global Navigation Satellite System 11 Global Navigation Satellite System Where to find more information? Everywhere on the WWW, search for GNSS on Google or Wikipedia

Global Navigation Satellite System 12 Global Navigation Satellite System When GNSS is not possible: use other landsurveying techniques and/or equipment !

Global Navigation Satellite System 13 Global Navigation Satellite System Routes outside Forum Made with Garmin’s On 2 october 2013 Click

Global Navigation Satellite System 14 Global Navigation Satellite System Thank you for your attention. Please remind : No longer GPS but GNSS !