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Global Positioning System

This comprehensive overview examines the Global Positioning System (GPS), including its technical specifications, organizational structure, and economic implications. It also highlights the role of the Interagency GPS Executive Board (IGEB) in governance and the importance of protecting the spectrum from disruptions. We discuss the competitive landscape with Galileo, addressing frequency issues, security, and market trends. As GPS continues evolving amidst rising competition, both civilian and military users seek constant improvements to ensure reliability. The future of GPS is linked to innovation and market dynamics.

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Global Positioning System

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Presentation Transcript

  1. Global Positioning System

  2. Introduction • Technical description • Organisational structure • Economics

  3. Satellites constellation

  4. Triangulation

  5. Technical specifications

  6. Organization • IGEB (Interagency GPS Executive Board). • No direct user fees for civil use • Protect the spectrum from disruption and interference • Open public signal structure and market competition • Use of standards • Global compatibility & interoperability • Security issues against misuse (national and international)

  7. Market trends

  8. Projections of 2006 GPS World Market

  9. Conclusions • GPS is a mature system governed by consistent policies • Constant will and actions to improve the system in order to satisfy the users (both civilian and military)

  10. Galileo

  11. Frequency Issues • Is there still any realistic scenario in witch GPS would be withdrawn and Galileo would continue independently ? • What could be the consequence of a jamming in signal because of Galileo ? > Galileo and GPS signal will be lost ... • Negotiation with each covered country for the use of frequency spectrum

  12. Numerous actors involved • Entropy in decisions • Private / Public Partnership • How own decision in case of disagreement ? • Risk : decrease in quality of services

  13. Gallileo = A project • Yet some decision by the European Commission : a lot of decision postponed, some term like “cheer up”, … • Optimal performance not immediate • Depend of profitableness …→

  14. Profitableness • Would Gallileo not arrive too late : market increase today, Gallileo arrives tomorrow • Based on three incomes : • Royalties on chipset : would the increase of performance that add Gallileo to GPS justify the increase of price of the receiver • Assisted GNSS • Authentication Quite few and in competition with GPS

  15. Projection of the market view by Gallileo! WHERE IS GPS !!!!

  16. GPS : the future at your door

  17. US leadership • A joint Japan-US since 1998 • NATO • Conflict US – Europe ???

  18. The future of GPS • GPS L1 Signal for civil use • In collaboration with users • QZSS • DGPS • GPS 3

  19. GPS 3 • More accurate • Horizontal : 0.5 m up to 0.2 m • Vertical : 1.1 m • Time delay 1.3 nSec • Better integrity and reliability • Available from 2005

  20. Conclusion • GPS is a mature system ! • Stunned success !!! • Countless innovations !

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