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© David Last Position, Navigation & Time - 4 th Annual Symposium Stanford University 9 November 2010 Crime, Punishment and the Global Positioning System Professor David Last
© David Last TomTom Car Navigator GPS receiver + Computer Picture:
© David Last Plot of addresses extracted from TomTom car navigator
© David Last Multiple timed and dated tracks
© David Last List of addresses extracted from TomTom car navigator
© David Last
Garmin eTrex hand-held GPS Picture:
Pictures: dreamstime.com, findarticles.com, masternaut.co.uk,
© David Last Vehicle tracking system
© David Last Vehicle tracking system Checks to establish quality of evidence
© David Last Picture: In high-quality tracking data, a moving vehicles fixes lie close to roads and are even biased to the left-hand carriageway.
© David Last Could this fix be 130 metres away?
© David Last How accurate is this GPS, then? Open site Open site Urban canyons Car roof Beneath car Car roof Max. error: 3.1m Max. error: 5.0m Max. error: 300m 95%-ile: 2.0m 95%-ile: 4.2m
© David Last
GPS and GSM Jammer Picture:
© David Last Picture: Professor Durk van Willigen GPS satellite radiates 100W From 20,000km range Illuminates 38% of Earth eg Europe + Africa + Atlantic
© David Last High-powered GPS and Mobile Phone Jammer Picture:
© David Last Pictures:
© David Last Pictures: GPS Spoofing … Jon used a desktop computer attached to a GPS satellite simulator to create a fake GPS signal … During later experiments, Jon … spoofed GPS signals at ranges over three quarters of a mile … at Los Alamos.
© David Last Pictures:
Picture: /www.imdb.com/title/tt , British ship is sunk by Chinese in international waters. Clue is fake GPS signal controlled by techno-terrorist. Bond discovers GPS device - and wins the girl! © David Last
Options to mitigate jamming and spoofing Picture: Detect and enforce Lojack Cellular asset recovery Dead-reckoning Enhanced Loran
© David Last Pictures: Mitchell Narins, Federal Aviation Administration; Reelektronika bv Enhanced Loran (eLoran) On earth, high-powered Different from GPS but a plug-in replacement FAAs GPS complement for aviation + maritime + timing Loran-C plus digital technology
© David Last So … where are we headed? GPS evidence vital in vehicle crime Forensic use of GPS growing rapidly Evidence being tested in court GPS-based systems now under attack
© David Last 38th ILA Convention and Technical Symposium October 13-15, 2009 Portland, Maine USA Crime, GNSS Jamming & Enhanced Loran Professor David Last.
© David Last 14 January 2009 Royal Ulster Yacht Club Satellite Navigation – Truths & Myths? Professor David Last Picture: earthobservatory.nasa. gov//ewsroom/BlueMarble/
© David Last Loodswezen Congress of Dutch Pilots 1 September 2008 Satellite Navigation Systems – The Present Imperfect Professor David Last Picture: earthobservatory.nasa.
Developed by Tracy Trimpe for the 2009 Smithsonian Summer Camp Forensic Science Geocaching Activity.
© David Last The Need for R esilient PNT at Sea Professor David Last Strategic Advisor, General Lighthouse Authorities of the United Kingdom and Ireland.
© David Last Institut für Erdmessung und Navigation Universität der Bundeswehr, München 15 March 2007 Satellite Navigation – Truths & Myths Professor David.
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