GNSS Jammers: how vulnerable are Consumer grade Satellite ...
© David Last October 14-15, 2010 Washington, DC The Effect of Jammers on GPS in a Maritime...
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© David Last October 14-15, 2010 Washington, DC 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)
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© David Last GPS Jammers, Mobile phone jammers, Future GPS, Galileo, Compass & GLONASS jammers Pictures:
Transcript of © David Last October 14-15, 2010 Washington, DC The Effect of Jammers on GPS in a Maritime...
© David Last
October 14-15, 2010
Washington, DC
The Effect of Jammers on GPSin a Maritime Environment
Professor David LastConsultant to the General Lighthouse Authorities
of the United Kingdom & Ireland (GLAs)
© David Last
Picture: Wikipedia
eNavigation
• Raise standards• Single display• Data linked to shore• Clear, up-to-the minute• Charts and incidents
© David Last
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
General Lighthouse Authorities of the UK & Ireland (GLAs)Flamborough GPS Jamming Trials
Pictures: www.gla-rrnav.org/pdfs/GPS_Jamming_and_the_impact_on_maritime_navigation.pdf
Jamming zone
Ship’s navigation track
© David Last
North Sea GPS Jamming Trials
Pictures: www.gla-rrnav.org/pdfs/GPS_Jamming_and_the_impact_on_maritime_navigation.pdf
AIS tracksRadar
© David Last
Galatea Trials
Pictures: www.gla-rrnav.org/pdfs/GPS_Jamming_and_the_impact_on_maritime_navigation.pdf
A very low-powered GPS jammer on board causedhazardously misleading information (HMI).
hazardously: no alarms sounded. misleading: erroneous positions and velocities,
some of them simply not noticeable!
© David Last
Galatea Trials
A little more jammer power …
… alarms began to sound and, one-by-one, thesebridge 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
Galatea Trials
Radar: Alarm, echo and AIS don’t agree
• Gyrocompass: Alarm, and drifts over time
Reverting to traditional navigation when GPS is lost
Visual: Not in low visibility
© David Last
Galatea Trials - A Magical Mystery Tour!
Featuring …• Hazardously Misleading Information (HMI)• free from Receiver Autonomous Integrity Monitoring (RAIM)• and with added Sulk Mode!
Galatea TrialGreen marker: eLoran
Blue marker: erroneous GPS
Flamborough trial:White track: eLoran through jamming
Pictures: www.gla-rrnav.org/pdfs/GPS_Jamming_and_the_impact_on_maritime_navigation.pdf
Prototype eLoran on the air in Europe with better than 10 metre accuracy
Pictures: www.gla-rrnav.org/file.html?file=652be60e268e09c0d91c5b6a976fbc30
© David Last
October 14-15, 2010
Washington, DC
The Effect of Jammers on GPSin a Maritime Environment
Professor David LastConsultant to the General Lighthouse Authorities
of the United Kingdom & Ireland (GLAs)
![TSS jammers [Converted] - The Lifeguard Store](https://static.fdocuments.in/doc/165x107/62300d5f6c5c254c4c3a7e5b/tss-jammers-converted-the-lifeguard-store.jpg)
