How connected are satellite navigation and connected vehicles?
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Transcript of How connected are satellite navigation and connected vehicles?
HOW SATELLITE NAVIGATION AND CONNECTED VEHICLES ARE CONNECTED?
Fiammetta Diani
European GNSS Agency
Is Global Satellite Navigation Systems
(GNSS) reliable enough?
5 November, 2014The European GNSS Programmes
First Europe’s contribution to satellite navigation:
EGNOS satellite augmentation system
EGNOS Augmentation system of GPS
Improves GPS accuracy
European coverage (but under extension in other regions, e.g. North Africa)
Available NOW, free of charge and widely available in automotive receivers
Open Service (OS) Accuracy ~1m, freeAvailable since
October 2009
Safety of Life Service
(SoL)
Accuracy ~1m, compliant to
aviation standards
Available since
March 2011
EGNOS Data Access
Service (EDAS)
Accuracy <1m, corrections
provided by terrestrial networks
Available since
July 2012
makes the difference!
What are the advantages?
GPS
GPS + SBAS
Galileo Worldwide navigation system “made in EU”
Fully compatible with GPS
Initial operational services in 2015
Open service free of charge, delivering dual frequencies
Signal authentication will provide trustability
Open Service (OS)Freely accessible service for
positioning and timing
Public Regulated Service
(PRS)
Encrypted service designed for greater
robustness and higher availability
Search and Rescue
Service (SAR)
Assists locating people in distress and
confirms that help is on the way
Commercial Service (CS)Delivers authentication and high accuracy
services for commercial applications
Second (and bigger) Europe’s contribution to satellite navigation: Galileo global system
The European GNSS ProgrammesCDMA: Code Division Multiple Access Open signals Military/Governmental signals * future signal
EU
USA
Russia
Japan
China
India
E6E5a
E5E5b
E1/L1
L5 L1
E6L5
L1
E6E5b L1
COMPASS
IRNSS
CDMA*CDMA*
L3 L1L5
L5
L5
CDMA
Galileo is fully interoperable with GPS
since the design
Galileo will contribute to improved
accuracy and position robustness
Multi-constellation: When buildings block the signal and reduce thenumber of visible satellites,the availability of more constellations ensures a much more accurate final position
Multi-frequency increasesrobustness of the position against jammers,because even if a satellite is not available or providing incorrect data, a reasonable accuracy will be achieved
How can Galileo benefit
connected vehicles?
8
*Source: “Experimental Results for the Multipath Performance of Galileo Signals Transmitted by GIOVE-A Satellite“, Andrew Simsky, DavidMertens, Jean-Marie
Sleewaegen, Martin Hollreiser, and Massimo Crisci, Septentrio, ESA, 2008
**Source: “Estimating the Time-To-First-Fix for GNSS Signals Theory and Simulation Results”‘ Marco Anghileri, Matteo Paonni, Stefan Wallner, José-Ángel
Ávila-Rodríguez, Bernd Eissfeller, Institute of Geodesy and Navigation, University FAF Munich, Germany’
•Galileo in combination with other GNSS provides improved accuracy,
availability and allows for a faster time-to-first-fix*
Multi-constellation
• Galileo is expected to be the only GNSS providing Open Service authentication, a “digital signature” to ensure no-spoofing
Galileo Authentication
•The strength of Galileo signal, together with an advanced code modulations, makes Galileo better mitigating multipath effects (especially in E5, but also E1)**
Multipath Resistant
• Using the data-less signal with a 100ms length for the secondary code, Galileo allows for an enhanced indoor penetration, improved performances in urban canyon, better performances in noise measurements and improved sensitivity in A-GNSS mode
Data-less signal of Galileo
Enhancement of currently offered
services
Development of newvalue-added services
Satellite Based Augmentation Systems (e.g. EGNOS) capability is commonplace in today’s receivers
Extra accuracy when you need it at no cost
Level of confidence of GPS signal
Multi-constellation (e.g. GPS/Galileo/Glonass) is rapidly becoming the baseline:
Much improved robustness and performance for users
Road GNSS receivers already include satellite
augmentation and multi-constellation
*Source: GSA analysis on GPS World Survey 2013
Percentages based on number of models available, not sales
SatNav capability of Road devices*
A civil system with priority on users:
European GNSS Service Centre
Website
Customer interaction functionality
Helpdesk ticket management Skilled people User’s database population Procedures involving all actors
Provide information to users and capture user’s feedback Static content: general system and services information Dynamic content: including scheduled maintenance activities
GSA is setting a preliminary Customer
assistance
Photo: INTA
In-vehicle device which enables lane-level traffic management in urban
areas, broadcast EGNOS data to vehicles and combining V2V and V2I
communication systems
CoVel- Lane-level road navigation with EGNOS
Results from R&D projects funded under European Seventh Framework Programme
GAIN- Galileo for Interactive Driving
Solution for detecting and mitigating
multipath in urban areas
Enhanced Active Green Driving
demonstrated in real scenarios:
• Roundabout: The vehicles velocity is
adapted to the distance and geometry
automatically
• Crosswalk: The speed will be reduced to
make the driver aware of approaching a
pedestrian crossing
• Ecological Driving: The vehicle adopts the
optimal velocity under consideration of the
traffic ahead and all information via C2X
communication
Results from R&D projects funded under European Seventh Framework Programme
NEW funding opportunities in Horizon 2020
http://www.gsa.europa.eu/r-d/h2020
https://www.facebook.com/EuropeanGnssAgency
https://twitter.com/EGNOSPortal
H2020-Galileo-1Development of E-GNSS applications in ALL key
Market Segments
H2020-Galileo-2Development of E-GNSS applications coordinated
by SMEs
H2020-Galileo-3Development of E-GNSS applications within
international context and related standards with high international impact
Thanks
4th November 2014 Fiammetta Diani
European GNSS Agency (GSA)