Galileo Aktueller Stand der Entwicklung Is there a positive perspective for Galileo? Dr. Philipp Berglez TeleConsult Austria GmbH GSV-Forum Galileo das europäische Satellitennavigationssystem eine neue Qualität für Nutzer im Verkehrsbereich 21 st October 2014 1
Actual status and problems Entering the initial operational capability phase Six Galileo satellites currently in orbit First launch of Galileo FOC satellites on August 22 nd 2014 Injected into non-nominal orbit Problems: High elliptical orbit Van Allen radiation belt High Doppler values Navigation message problem Fuel is limited ESA is investigating the possibilities of exploiting the satellites to maximum advantage Is there a positive perspective for Galileo? 2
The answer must be YES Galileo has an user oriented approach Different services for civilian use Under full civilian control Independent from GPS, GLONASS Interoperable with other GNSS Galileo success story so far Suitability of key technologies have been demonstrated Exceptionally stable passive hydrogen maser atomic clock the most advanced clock ever flown for navigation purposes Historic first positioning fix using Galileo only on 12 March 2013. Galileo services have been demonstrated Galileo works, and it works well (ESA 2014) 3
First Galileo position fix by TeleConsult Austria March 25th, 2013 at 9:09 CET Rosenhain, Graz, Austria 4 Galileo IOV satellites 6 GPS satellites Combined Galileo GPS position fix 4
Galileo overview Space segment Circular orbits; 23 616 km above earth (period 14 h 04 min) Orbital inclination of 56 Three equally spaced orbital planes Nine operational satellites, equally spaced in each plane One spare satellite (also transmitting) in each plane Galileo ground segment Galileo Control Center (Oberpfaffenhofen and Fucino) Telemetry, Tracking and Command Stations Uplink Stations Sensor Stations GCC in Oberpfaffenhofen User segment 5
Galileo services Open Service Commercial Service Safety of Life Service Free to air; Mass market; Simple positioning; Basic integrity Encrypted; High accuracy; Guaranteed service; Authentication Open Service + Integrity of signal Public Regulated Service Search and Rescue Service Encrypted; Continuous availability; Resistant signals Near real-time; Precise; Return link 6
Galileo signals and services 10 different signals in 3 bands Data and pilot signals for better tracking capabilities Sharing some frequency bands with other GNSS ARNS Bands RNSS Bands RNSS Bands ARNS Bands E5a (L5) E5b L2 G2 E6 E2 L1 E1 G1 OS SoL OS SoL PRS CS PRS OS SoL Not to scale Galileo Bands GPS Bands (current and modernised) GLONASS Bands (current and modernised) 7
GNSS Security Threats Vulnerability & GNSS threats Jamming, spoofing, meaconing Volpe Report 2001: Vulnerability assessment of the transportation infrastructure relying on GPS Countermeasures Galileo signal design Signal processing algorithms Data processing algorithms Projects at TeleConsult Austria Detection, classification and localization of jammers and spoofers Position and signal authentication Galileo Public Regulated Service signal simulation 8
Not just an urban legend Reports on jamming and spoofing attacks increased during past years Mainly in North America and Asia Degradation of performance or denial of service Especially a problem for safety critical GNSS applications Field tests in August 2014 in the area of Graz A2! A9 9
The threats are real Field tests in Austria revealed that the threats are real Within the first hour of the test the first jammer was detected Significant drop of accuracy during jamming event Caused by personal privacy device installed in truck/car 10
Benefit of Galileo signals Typical Jammer (1/2) PRS signals designed to be resistant against jamming and spoofing CS signals provides high accuracy and authentication service Simulation of jamming scenario Ref: www.navigadget.com, www.infostream.biz 11
Benefit of Galileo signals Typical Jammer (2/2) Comparison of GPS C/A, Galileo OS, and Galileo PRS performance during jamming event No GPS position solution during jamming event Galileo OS performance decreased Galileo PRS performance unaffected 12
Global Navigation Satellite Systems GPS GLONASS Galileo BeiDou/COMPASS EGNOS, WAAS, MSAS, GAGAN, SDCM, etc. QZSS 13
Situation some years ago 1 System and 1 Signal 14
Situation some years ahead 4 Systems and > 40 Signals + Augmentation Systems 15
Conclusions Benefit of Galileo through Service oriented concept Civil control New signal structures Improved accuracy Improved availability Improved resistance against jamming/spoofing Combination/Interoperability with other GNSS Current problems are challenges and will result in new innovations Galileo works, and it works well (ESA 2014) 16
Dr. Philipp Berglez ADDRESS Rettenbacher Straße 22, 8044 Graz, Austria E-MAIL pberglez@tca.at WEB www.tca.at PHONE +43-316-890971-14 FAX +43-316-890971-55 GSV-Forum Galileo das europäische Satellitennavigationssystem eine neue Qualität für Nutzer im Verkehrsbereich 21 st October 2014 17