Galileo The European Satellite Navigation System

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GalileoThe European Satellite Navigation
System
Dakar, November 2003
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Galileo s mission

• To improve multi-modal transport infrastructure
  while providing global high-quality civil
  Position-velocity-time capability
• To implement an independent GNSS
• To provide interoperability
• To provide enhancements and global redundancy
• To support safety of life and other applications
  anticipating needs for value-added suppliers
• To be legally accountable for the services that
  it supplies

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GALILEO is a joint EC / ESA Initiative
European Commission
with assuming
political responsibility ...
http//europa.eu.int/comm/energy_transport/en/gal_
en.html
and leading the programme
development
www.esa.int/navigation
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GALILEO Joint Undertaking
Created by the EU Council decision. Founding
members ESA and EC. GALILEO Joint Undertaking is
operational as of 1 September 2003
Functions

• Supervises the EGNOS Programme and its optimal
  Integration in GALILEO.
• Oversee the Implementation of the GALILEO
  Development and Validation Phase help prepare
  for the deployment and ops. Phase
• Launch through ESA a first series of
  satellites..
• Supervise the carrying out of all programs
  propose adjustments
• Conclude an agreement with ESA for the
  development phase and make available the
  corresponding funds
• Help mobilise the public and private funds for
  the next phases (Establish business plan
  Competitive tendering for Concession)

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GALILEO Joint Undertaking
Founding Members
Possible Future Members
European Community(Commission)
EuropeanSpaceAgency
European Investment Bank
Private companies
Third countries
Supervisory Board(EU Member States)
ESA Pb-Nav(ESA Member States)
Administrative Board
Joint Undertaking
Director
Executive Committee
Subcontracting
Infrastructure (ground / space)
Preparation of deployment and operation
Application development
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GALILEO Joint Undertaking
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European motivation

• Galileo 4 main arguments

Political
European independence and sovereignty Industrial
politics
Social
Technological
Better and new services for the citizens Improved
safety of transport systems Environmental benefits
Technological lead to European industry Explore
synergy of a number of technologies
Economic
Global market shares Global competitiveness of
all segments of the Value Chain Employment Efficie
ncy of transport industry
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GALILEO ADVANTAGES

• Civilian programme
• Liability and Guarantees on service levels
• Certification for Safety of Life
• Local elements incorporated in initial design

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GALILEO services

• The Galileo satellites will provide 5 worldwide
  services independently
• 1-Open service.
• Free of charge.
• Accuracy (H 4m V 8m).
• Mass market applications based on GPS-Galileo
  receivers.
• 2-Safety of life.
• Global integrity (integrity risk 3.5.10-7,
  VAL20m, HAL12m, Time to alarm 6 secs).
• Services guarantees.
• Combined use GalileoEGNOS.
• Certification-liability.
• 3-Commercial service.
• Added value services with respect to the open
  service.
• Services guarantees.
• Interface with Service Providers.
• 4- Public Regulated Service.
• Continuity and robustness.
• Services guarantees.
• Public applications (police, civil protection,
  emergency services,).
• Critical and strategic applications (energy,
  telecommunications,).

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GALILEO SoL Service
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GALILEO and GPS/EGNOS together

• An alternative in case of system failure
• Allow for new and complementary services
• In cities urban canyons (buildings, trees,
  etc.)
• GPS in cities 50 availability
• GALILEO GPS in cities 95 availability

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GPS EGNOS Galileo The civil aviation
approach towards sole service.
GPS EGNOS Galileo
GPS
GPS EGNOS
Robustness to iinterferences
Robustness to iinterferences
Robustness to iinterferences
Qualitative Requirements
System failures tolerance
System failures tolerance
System failures tolerance
Sole Service
Integrity
Integrity
Integrity
Continuity
Continuity
Continuity
Quantitative Requirements
Availability
Availability
Availability
Accuracy
Accuracy
Accuracy
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Search and Rescue Services
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Overall architecture physical view
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The Galileo Satellite Constellation

• 30 satellites in three Medium Earth Orbit MEO
  planes at 23616 km altitude
• 1 satellite per orbital plane is a spare
• Inclination of orbital planes 56 degrees
• One revolution 14 hours 4 min
• Ground track repeat 10 days