6EGNOS Ground Segment Development EGNOS Ground Segment is made ofFour Mission Control Centers, hosting eacha Central Processing Facilitiesa Central Control Facilities,Collecting data from 34 RIMS Sites hostingBranch A, used for ProcessingBranch B, used for integrity checksBranch C, to track specific GPS satellite failure modesFeeding Six Land Earth StationsBroadcasting EGNOS Messages to users via 3 GEO SatellitesAll interconnected via real-time digital network
7All EGNOS S/S are fully qualified and deployed RIMS A, B and CCentral Processing FacilityCPFLand Earth Station HWCentral Control Facility (CCF)
8EGNOS Subsystems Deployment -40-30-20-1010203040506070Longitude (°)Latitude (°)GONBRNKIRGLGFULANGVLALBZRHLAPWRSRKKTRDMALPDMCNRSDCHBK (South Africa)TORPARMON(Canada)TROACRMADCTNSCZCIAAUSKOU (FrenchGuyana)SWAEGICRKRIMSMCCNLESPACFASQFTLSLSBBNG(India)GOLSOFDJADABMAUR
9SBAS Interoperability Let us recall that EGNOS is one of three Satellite-Based Augmentation Services (SBAS), the two others being the United States WAAS and the Japanese MSAS.Those system are developed against GNSS1 Standards, that, fter more than 6 years of intensive standardisation efforts, are now finalised by the International Civil Aviation Organisation (ICAO) in the form of SARPS (Standards and Recommended Practices). These standards are now part of Annex 10 of the Chicago Convention, with an applicability date of the 1st of NovThose SBAS are primarily defined as regional systems, and co- operation/co-ordination among the different systems will enable to provide a seamless world-wide navigation system. To this aim, the three systems have set up common interoperability requirements, and this is monitored via regular “Interoperability Working Group (IWG)” meetings between system development teams.In addition to interoperability, EGNOS has built-in expansion capability to enable extension of the services over regions within the Geostationary Broadcast Area of GEO satellites used, such as Africa, Eastern countries, and Russia.The combination of SBAS Interoperability and expansion concepts will allow to provide a true global world-wide GNSS1 navigation seamless service, and actions are being pursued with international partners to exploit this capability, towards a full seamless service over wider areas.EGNOS is an integral partof 3 inter-regional systems
10And future likely additional SBAS systems .. GAGAN
12EGNOS Key ChallengesEnsure 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.
13EGNOS 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).
14Outline EGNOS System: Overview EGNOS Status and performance Summary EGNOS Evolutions. Why? What? When?Summary
15The 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 Daily transmissions since July 2004.EGNOS final functional/performance qualification planned end 2004.ESA. ESA Receiver Workshop Conclusions. Paris
16EGNOS Measured Accuracies Sept 5, 2004 (24h) LisbonToulouseRomeBrusselsParisHNSE95%1.2 m0.9 m1.1 m0.8 m1.0 mVNSE1.7 m1.4 m1.3mTo 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)
17Service availability measured in ESA/ESTEC (NL) Sept 20, 2004 (26 out of 34 RIMS used)
18Service Coverage Sept 5, 2004 (24h) (with 26 RIMS out of 34)
19Outline EGNOS System: Overview EGNOS Status and performance Summary EGNOS Evolutions. Why? What? When?Summary
20In parallel to the start of EGNOS operations, EGNOS needs to respond positively to the dynamic GNSS environmentEGNOS AOC is based on a MRD Document developed in This allows EGNOS V1 service provision in 2004 with excellent performances.Since then, the GNSS environment has changed significantly:Galileo programmeGPS Modernisation program (IIR-M, IIF)New L1/L5 GEOsExport opportunities for SBAS technologyGPS/SBAS L5 standardisation workWAAS FOC program launchedEGNOS V2 concept
22Three EGNOS V2 versions conceived in 2005-2008 STEP 1STEP 2EGNOS V2.1 end 2005EGNOS V2.2 end 2007EGNOS V2.3 end 2008
23Proposed EGNOS V2 core Infrastructure Evolution Plan focuses on user-beneficial functional evolutionsSTEP 1STEP 2EGNOS V2.1 in 2006EGNOS V2.2 in 2007EGNOS V2.3 in 2008EGNOS products over non-GEO data links (INSPIRE)Extension to MEDA and East of EuropeOther issues (MT0/2, Standard necessary adaptations)EGNOS MT 28Extension in AfricaModernised RIMS receiversSAR return linkL5 standards and L5 GEO broadcastGNSS “sole service” using combined EGNOS/GALILEOL1/L5/Galileo (TBC) enhanced RIMS receivers
24INterface System for the Provision In Real time of the EGNOS product (INSPIRE)
26Feasibility Analsyis EGNOS extension in Africa (ISA System)
27Outline EGNOS System: Overview EGNOS Status and performance Summary EGNOS Evolutions. Why? What? When?Summary
28SummaryEGNOS 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 availabilitiesAlmost Continuous transmission since July 2004 for the three EGNOS GEOs; formal EGNOS qualification end 2004, delivering a very valuable service to usersIn 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 ( ) 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).