| | The Economist, March 14 2002 Group Gamma David Dürrenmatt, Inna Höhener, Michael Knuchel, Josiane Imhof, Christian Tschumi 25th Mar 15 Group Gamma 1 Global Positioning: Accuracy is Addictive
|| The Economist, March 14 2002 Group Gamma David Dürrenmatt, Inna Höhener, Michael Knuchel, Josiane Imhof, Christian Tschumi 25th Mar 15Group Gamma1 Global.
Dec 17, 2015
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||Group Gamma 1
The Economist, March 14 2002
Group GammaDavid Dürrenmatt, Inna Höhener, Michael Knuchel, Josiane Imhof, Christian Tschumi
25th Mar 15
Global Positioning: Accuracy is Addictive
||
Celestial guidance Landmarks Dead reckoning Map
Before GPS
Source: Wikipedia
25th Mar 15Group Gamma 2
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1957 1960 1973 1990 Today
A short history of GPS
Launch of Sputnik
Development of Transit
Combination of best features
End of accuracy restrictions
Source: www.bisbos.com Source: Wikipedia
32 artificial satellites orbiting above earth
25th Mar 15Group Gamma 3
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How it works
25th Mar 15Group Gamma 4
Source: Garmin Corporation: Magellan
Pinpoint locationSPACE
SEGMENT
USER SEGMENTCONTROL
SEGMENT
HAND-HELD RECEIVER
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Science or technology?
Sputnik
Accuracy 25m, 15mins to get fix,
no continuous location
Science AND technology: Process of technical evolution
Quantum mechanics(Caesium clock)
Theories of special and general relativity
Pseudo-random codeto prevent jamming
Many applications in military and civil industry
Transit GPSCompeting
Efforts
Nature of ionosphere?Earth’s gravity field?
Consolidation,lead by Pentagon,
Significant investmentby US military
25th Mar 15Group Gamma 5
Dopplershifts
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Bacon’s linear model…? Not really
25th Mar 15Group Gamma 6
Basic Research
Applied Research
Technology
Diffusion
Innovation
Invention
Integrative model: Science and technology highly dependant
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“The better it gets, the more uses people find for it”
Self-perpetuating innovation - GPS today
Military applications Navigation Target tracking Search and rescue Nuclear detonation
detection
Civilian applications Automated vehicles Clock synchronization Fleet tracking Aircraft tracking Robotics
25th Mar 15Group Gamma 7
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Integration of scientific knowledge into technological project
Important role of funding source (Pentagon) Possibilities of / applications for GPS technology still
growing today
Take home messages
25th Mar 15Group Gamma 8
Source: Navipedia
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