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Satellite Navigation Technology
Past, Present, Future
A/Prof Suelynn Choy
Discipline Leader (Geospatial), School of Science
Director, SPACE Research Centre
RMIT University
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Space race in the 1950s
1950s 1960s 1970s 1980s 1990s 2000s 2010s
4 Oct 1957
The world's first satellite - Sputnik I
Source: State Museum and
Exhibition Centre ROSIZO
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Satellite navigation in the 1960s
1950s 1960s 1970s 1980s 1990s 2000s 2010s
13 April 1960
The U.S. Navy navigation satellite system (Transit) first experimental satellite successful
July 1964
Transit released for commercial use
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Satellite navigation in the 1970s – 1980s
1950s 1960s 1970s 1980s 1990s 2000s 2010s
1975
First concept validation GPS Navigator, the GPS X-Set
1978 - 1985
GPS Block I satellites launches
1984
Commercial 5 channel GPS navigator
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Satellite navigation in the 1990s
1950s 1960s 1970s 1980s 1990s 2000s 2010s
1990
GPS and Russia’s GLONASSnavigator
4 April 1991
Selective Availability (S/A) turned on
26 Dec 1991
Dissolution of the Soviet Union enacted
27 April 1995
GPS reached full operational capability
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Satellite navigation in the 2000s
1950s 1960s 1970s 1980s 1990s 2000s 2010s
1 May 2000
S/A turned off (new GPS blocks IIR launches)
26 May 2002
EU’s Galileo approved (others in planning)
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Satellite navigation in the 2010s
1950s 1960s 1970s 1980s 1990s 2000s 2010s
Multi Constellation GNSS
GPS(32) + Glonass(24) + Galileo(26) + BeiDou(29) + IRNSS(7) + QZSS(4) + SBAS(13)
GNSS Golden Era
Over 100 GNSS (GPS, GLONASS, Galileo, BeiDou, QZSS etc) satellites today!
Much better availability, accuracy, integritySource: UNSW
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Where am I?Source: Geoscience Australia
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Earth’s plates
Source: Zuheir Altamimi
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Tohoku-oki Earthquake 2011
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Tsunami monitoring
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Engineering and construction
Millau Viaduct Burj Khalifa
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Precision agriculture
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GNSS save livesSource: GSA
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Emergency alert
Source: Cabinet Office of Japan
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Economic (and Social) Benefits
• Successful 2-year program exploring benefits of Satellite Based Augmentation System (SBAS) technology for Australia and NZ
• Delivers $6.2 billion in economic benefits to Australia over the next 30 years to 9 industry sectors
• Agriculture, resources, construction sectors have major benefits
Source: FrontierSI
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Accelerate adoption and development
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An integrated national positioning system
3 cm in areas with mobile internet
10 cm accuracy anywhere anytime
SATELLITE
Source: Geoscience Australia
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Market today – Australia
Agriculture Geospatial and Construction Resources and Mining
• 15%^ productivity gains
• $577M* savings through improved efficiency
^ Acil Allen Economic Benefits of GNSS Report 2013* EY & FrontierSI SBAS Test-bed Demonstrator Trial Economic Benefits Report 2019
• 52%^ fuel cost savings
• $820M* saving in feed and fertiliser
• 20-40%^ labour cost savings
• Reduction in collision, injuries and fatalities
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Autonomous vehicles
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Who anticipated in mobile phones?
Source: Higgins (2018)
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Smart cities, smart everything
Source: TechTarget
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Future?
“Tax authorities are currently writing-off a GNSS receiver inthree years. The knowledge of mankind is doublingpresently in two years (compared to 100 years between1800 and 1900).
Thus, how can we predict how satellite navigation looks in50 years, or only in 20 years from now?”
Günter W. Hein (2018)