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© David Last

The Effect of Jammers on GPS in a Maritime Environment. Professor David Last Consultant to the General Lighthouse Authorities of the United Kingdom & Ireland (GLAs). October 14-15, 2010 Washington, DC. © David Last. eNavigation. Raise standards Single display Data linked to shore

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© David Last

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  1. The Effect of Jammers on GPS in a Maritime Environment Professor David Last Consultant to the General Lighthouse Authorities of the United Kingdom & Ireland (GLAs) October 14-15, 2010 Washington, DC © David Last

  2. eNavigation • Raise standards • Single display • Data linked to shore • Clear, up-to-the minute • Charts and incidents Picture: Wikipedia © David Last

  3. GPS Jammers, Mobile phone jammers, Future GPS, Galileo, Compass & GLONASS jammers Pictures: www.tekony.com/product_show.asp?productid=448, www.jammer-store.com/gj5-gps-l1-l2-l5-jammer-blocker.html © David Last

  4. General Lighthouse Authorities of the UK & Ireland (GLAs) Flamborough GPS Jamming Trials Jamming zone Ship’s navigation track Pictures: www.gla-rrnav.org/pdfs/GPS_Jamming_ and_the_impact_on_maritime_navigation.pdf

  5. North Sea GPS Jamming Trials Radar AIS tracks Pictures: www.gla-rrnav.org/pdfs/GPS_Jamming_and_ the_impact_on_maritime_navigation.pdf © David Last

  6. Galatea Trials A very low-powered GPS jammer on board caused hazardouslymisleading information (HMI). hazardously: no alarms sounded. misleading: erroneous positions and velocities, some of them simply not noticeable! Pictures: www.gla-rrnav.org/pdfs/GPS_Jamming_and_the_impact_on_maritime_navigation.pdf © David Last

  7. Galatea Trials A little more jammer power … … alarms began to sound and, one-by-one, these bridge systems failed: • ECDIS: Electronic Chart Display • Ship’s autopilot • DGPS: Differential GPS • Heli-deck stabilisation system • Satellite voice and data communications • DSC-GMDSS: Maritime Distress Safety System • Radar • Gyro-compass • AIS: Automatic Identification System © David Last

  8. Galatea Trials Reverting to traditional navigation when GPS is lost Gyrocompass: Alarm, and drifts over time Radar: Alarm, echo and AIS don’t agree Visual: Not in low visibility © David Last

  9. Galatea Trials - A Magical Mystery Tour! • Featuring … • Hazardously Misleading Information (HMI) • free from Receiver Autonomous Integrity Monitoring (RAIM) • and with added Sulk Mode! © David Last

  10. Flamborough trial: White track: eLoran through jamming Galatea Trial Green marker: eLoran Blue marker: erroneous GPS Pictures: www.gla-rrnav.org/pdfs/GPS_Jamming_and_the_impact_on_maritime_navigation.pdf

  11. Prototype eLoran on the air in Europe with better than 10 metre accuracy Pictures: www.gla-rrnav.org/file.html?file=652be60e268e09c0d91c5b6a976fbc30

  12. The Effect of Jammers on GPS in a Maritime Environment Professor David Last Consultant to the General Lighthouse Authorities of the United Kingdom & Ireland (GLAs) October 14-15, 2010 Washington, DC © David Last

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