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).