The EGNOS System ArchitectureThe EGNOS System Architecture
Status and Future PlansStatus and Future Plans
The EGNOS System ArchitectureThe EGNOS System Architecture
Status and Future PlansStatus and Future Plans
European Space Agency
Dr J. Ventura-TravesetEuropean Space Agency (ESA), EGNOS Project Office
ESA/EGNOS/JV/2
Outline
EGNOS System: Overview
EGNOS Status and performance Summary
EGNOS Evolutions. Why? What? When?
Summary
ESA/EGNOS/JV/3
EGNOS the European SBAS: added value
GPS-like signals
Differentialcorrections
Integrity(Use / Don't Use)
+ ACCURACY+ AVAILABILITY+ CONTINUITY
+ SAFETY
GEO
ESA/EGNOS/JV/4
ESA/EGNOS/JV/5
EGNOS AOC Architecture
GPSGLONASS
GEO
NLES(x 6)
RIMS
EWAN
AOR-EIOR-W
ARTEMIS
MCC 1 MCC 2 MCC 3 MCC 4 PACF ASQF
ESA/EGNOS/JV/6
EGNOS Ground Segment Development
EGNOS Ground Segment is made of
Four Mission Control Centers, hosting each– a Central Processing Facilities– a Central Control Facilities,
Collecting data from 34 RIMS Sites hosting– Branch A, used for Processing– Branch B, used for integrity checks– Branch C, to track specific GPS satellite failure
modes
Feeding Six Land Earth Stations – Broadcasting EGNOS Messages to users via 3
GEO Satellites
All interconnected via real-time digital network
ESA/EGNOS/JV/7
All EGNOS S/S are fully qualified and deployed
Central Processing FacilityCPF
RIMS A, B and C
Land Earth Station HW
Central Control Facility (CCF)
ESA/EGNOS/JV/8-40 -30 -20 -10 0 10 20 30 40
20
30
40
50
60
70
Longitude (°)
La
titu
de
(°)
EGNOS Subsystems Deployment
RIMS
MCC
NLES
PACFASQF
SCZ
CIA
AUS
KOU (French Guyana)
SWA
EGI
CRK
GON
BRN
KIR
GLG
FU
LAN
GVL
ALB
ZRH
LAP
WRS
RKKTRD
MAL
PDM
CNR
SDC
HBK (South Africa)
TOR
PAR
MON(Canada)
TRO
ACR
MAD
CTN
TLS
LSB
BNG(India)
GOL
SOF
DJA
DAB
MAUR
ESA/EGNOS/JV/9
SBAS Interoperability
EGNOSWAAS MSAS
EGNOS is an integral part of 3 inter-regional systems
ESA/EGNOS/JV/10
And future likely additional SBAS systems ..
EGNOSWAAS MSAS
GAGAN
ESA/EGNOS/JV/11
EGNOS INDUSTRIAL CONSORTIUM
ESA/EGNOS/JV/12
EGNOS Key Challenges
Ensure ionosphere (GIVE) and GPS integrity (UDRE) for a 15 years operational scenario, and still provide adequate availability (99%) and continuity (8x10-5/150 sec);
EGNOS SBAS formal certification for Safety of Life (institutional and technical issue);
EGNOS to penetrate in a large number of multi-modal markets reducing the time to service of Galileo;
EGNOS evolution after EGNOS V1 (service extension and GPS modernisation);
EGNOS and Galileo technical and service provision integration.
ESA/EGNOS/JV/13
EGNOS is intended for multi-modal applications
EGNOS/SISNET for public bus transportation (NAVOCAP, France; and
also GMV, Spain)
EGNOS dissemination through FM RDS in cars (TDF, France)
EUROCOPTER (Helicopter Emergency Medical Services,
Germany/France)
EGNOS to support Precision Farming (Booz Allen, UK)
DELTA hybridation test in airports (M3 systems, France, and also at
Sweden)
EGNOS disseminations through DAB radios (BOSCH/ BLAUPUNKT,
Germany)
Internet EGNOS transmission: SISNET Pocket PC PDA receiver (Finish
Geodetic Institute, Finland)
EGNOS/SISNET to support blind pedestrian (GMV and ONCE Spain).
ESA/EGNOS/JV/14
Outline
EGNOS System: Overview
EGNOS Status and performance Summary
EGNOS Evolutions. Why? What? When?
Summary
ESA/EGNOS/JV/15
The deployment of the EGNOS infrastructure
is close to complete
All 4 Master Control Centres (MCC) have been deployed;
All Navigation Land Earth Stations; (NLES) have been deployed;
30 of the 34 RIMS are today deployed;
All 3 EGNOS Geostationary satellites are transmitting successfully;
EGNOS transmission/performances since Dec. 2003. Daily transmissions since July 2004.
EGNOS final functional/performance qualification planned end 2004.
1. ESA. ESA Receiver Workshop Conclusions. Paris 3.7.2003
ESA/EGNOS/JV/16
EGNOS Measured Accuracies Sept 5, 2004 (24h)
Lisbon Toulouse Rome Brussels Paris
HNSE
95%
1.2 m 0.9 m 1.1 m 0.8 m 1.0 m
VNSE
95%
1.7 m 1.4 m 1.2 m 1.7 m 1.3m
To be noted:
Less than 1 m horizontal accuracies recorded in EGNOS quite often;
Excellent vertical accuracies 1-2m (well below the 7.6 m specification)
ESA/EGNOS/JV/17
Service availability measured in ESA/ESTEC (NL) Sept 20, 2004 (26 out of 34 RIMS used)
ESA/EGNOS/JV/18
Service Coverage Sept 5, 2004 (24h) (with 26 RIMS out of 34)
ESA/EGNOS/JV/19
Outline
EGNOS System: Overview
EGNOS Status and performance Summary
EGNOS Evolutions. Why? What? When?
Summary
ESA/EGNOS/JV/20
In parallel to the start of EGNOS operations, EGNOS needs to respond positively to the dynamic GNSS environment
EGNOS AOC is based on a MRD Document developed in 1998. This allows EGNOS V1 service provision in 2004 with excellent performances.
Since then, the GNSS environment has changed significantly:
1. Galileo programme2. GPS Modernisation program (IIR-M, IIF)3. New L1/L5 GEOs4. Export opportunities for SBAS technology5. GPS/SBAS L5 standardisation work 6. WAAS FOC program launched
EGNOS V2 concept
ESA/EGNOS/JV/21
Combined Services
ESA/EGNOS/JV/22
Three EGNOS V2 versions conceived in 2005-2008
EGNOS V2.1end 2005
EGNOS V2.2end 2007
EGNOS V2.3end 2008
STEP 1 STEP 2
ESA/EGNOS/JV/23
Proposed EGNOS V2 core Infrastructure Evolution Plan focuses on user-beneficial functional evolutions
EGNOS V2.1in 2006
EGNOS V2.2in 2007
EGNOS V2.3in 2008
EGNOS products over non-GEO data links (INSPIRE)
Extension to MEDA and East of Europe
Other issues (MT0/2, Standard necessary adaptations)
EGNOS MT 28
Extension in Africa
Modernised RIMS receivers
SAR return link
L5 standards and L5 GEO broadcast
GNSS “sole service” using combined EGNOS/GALILEO
L1/L5/Galileo (TBC) enhanced RIMS receivers
STEP 1 STEP 2
ESA/EGNOS/JV/24
ININterface terface SSystem for the ystem for the PProvision rovision IIn n RReal time of the eal time of the EEGNOS productGNOS product (INSPIRE)
ESA/EGNOS/JV/25
ESA/EGNOS/JV/26
Feasibility Analsyis EGNOS extension in Africa (ISA System)
ESA/EGNOS/JV/27
Outline
EGNOS System: Overview
EGNOS Status and performance Summary
EGNOS Evolutions. Why? What? When?
Summary
ESA/EGNOS/JV/28
Summary
EGNOS is the European SBAS and a first step towards GALILEO, the European SATNAV constellation.
EGNOS AOC (EGNOS V1) is close to conclusion. EGNOS Initial performances are very good, with accuracies 1-2m and good APV availabilities
Almost Continuous transmission since July 2004 for the three EGNOS GEOs; formal EGNOS qualification end 2004, delivering a very valuable service to users
In parallel to operations and without any operational interruption, EGNOS will keep modernising and improving services in 2004/2008 (EGNOS V2), in response to new identified needs (e.g. Galileo and GPS modernisation, service extension).
Step I of this modernisation (2004-2005) has been approved. This includes the release of EGNOS V2.1 early 2006, with 2 main new missions: service extension (south/east) and non-GEO service multi-modal provision (INSPIRE).
Step 2, to be confirmed in 2005, includes EGNOS extension in Africa (2007) and SBAS L1/L5 services (2008).
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