EGNOS SYSTEM TEST BED P. Michl, H. Scrtan &Co GNSS-1 Projct Offic ESA/CNES EGNOS Projct Offic
Outlin Introduction ESTB programmatic and main highlights ESTB-MTB systm architctur ovrviw ESTB Oprations Ovrviw Organization ESTB SIS availability ESTB Expansion concpt Prformancs monitoring: Intgrity, Accuracy Conclusions EGNOS Projct Offic
Introduction ESTB is an EGNOS Prototyp: Complt nd to nd systm Functionally rprsntativ of EGNOS systm It provids a srvic on most of Europ ESTB SIS availabl sinc Fbruary 2000 ESTB SIS is bing and will continu to b usd to: Analys spcific GNSS systm dsign and prformanc aspcts and optimisations Srv as a prototyp platform to prpar futur EGNOS oprations support GNSS applications and srvics dmonstration, promotion and dvlopmnt Hlp Usr Communitis to gt progrssivly awar and familiarisd with forthcoming nw GNSS srvics! Europan GNSS srvics hav startd with th ESTB EGNOS Projct Offic
ESTB Global Ovrviw EGNOS Projct Offic
Y2002 main highlights (1)! Tchnical ESTB signal upgradd to latst intrnational standard (RTCA DO-229C) ESTB signal transmission availabl availabl via 2 gostationnary satllits (AOR-E and IOR) ESTB corrctions availabl via intrnt (SISNT) 2 nw RIMS stations connctd to th ntwork Srvic availability continus improving Positioning accuracy has bn improvd to lowr than 1 mtr Srvic xpansion byond Europ has bn dmonstratd EGNOS Projct Offic
Y2002 Main highlights (2)! Usr support and Dmonstrations! Hlpdsk has procssd about 300 qustions and rqusts! Gnral information to Usrs kps improving (nwslttr, WEB, tc )! Many dmonstrations of GNSS bnfits and potntial nw applications hav continud to occur EGNOS Projct Offic
Prspctiv for Y2003 (1) Programmatic Framwork for xtnding ESTB oprations byond mid-2003 and until availability of stabl EGNOS Oprational SIS undr discussion Objctiv: nsur samlss availability of GNSS signal to Usr Community Usr support lobbying wlcom to facilitat th procss GEO satllit baslin constllation to volv during Y2003: AOR-E to b dcomissiond from ESTB around mid 2003 IOR satllit to b movd by INMARSAT ovr Pacific towards nd-2003 ESTB transmission to progrssivly mov to ithr INMARSAT 4F1 or ARTEMIS (TBC) Usrs will b informd in du tim SISNT transmission will continu EGNOS Projct Offic
Prspctiv for Y2003 (2) Support to GNSS Srvic Introduction ESTB will rmain in Y2003 th only stabl Europan GNSS signal Us of ESTB to support GNSS srvics prparation will b intnsifid (EC Galilo Pilot Projcts, ESA ARTES 5 initiativs and othrs ) Dmonstration of GNSS srvics outsid Europ will furthr dvlop in Y2003 (Africa, South Amrica, China ) EGNOS Projct Offic
ESTB stratgy wrt to MT0/2 ( 1) MT0 dclars whthr th systm is in tst mod or in oprational mod ESTB is currntly fully in lin with Intrnational signal and mssags standards Standards howvr do allow a mor laboratd us of MT0: Systm in tst mod Systm oprational but for non safty application Systm oprational for safty applications WAAS has adoptd this laboratd vrsion of MT0 EGNOS Projct Offic
ESTB stratgy wrt to MT0/2 ( 2) Svral rcivr manufacturrs can intrprt th 2 vrsions of MT0 Som hav chosn to intrprt only th on slctd by WAAS and this crats incompatibilitis with th ESTB signal ESTB has volvd and allows to broadcast ithr of th 2 solutions ESA intntion is to switch to WAAS mod on 16th Dcmbr 2002 providd: Confirmation that full compatibility with.g. GARMIN rcivrs is rstord No major impact on on-going or plannd dmonstration is idntifid Usrs ar invitd to tak th opportunity of th tsts plannd in Novmbr to chck compatibility and mak thir opinion known to ESA as soon as possibl EGNOS Projct Offic
ESTB stratgy wrt to MT0/2 ( 3) Proposd schdul: 25-26 Novmbr, tst with MT0/2 on PRN 120 Wk 48-47: fdback from usrs and impact analysis Wk 51: MT0/2 switch on ESTB SIS PRN 131 EGNOS Projct Offic
ESTB systm architctur ovrviw EGNOS Projct Offic
Ground Sgmnt outlins EGNOS Projct Offic
ESTB-MTB FUNCTIONAL ARCHITECTURE CPF in SATREF CC (NMA- Norway) 3 Ranging stations Raw data 10 ESTB Stations Raw data Ral Tim procssing Data Procssing GIC/ WAD msg gnration Ranging mssags EURIDIS Toulous Euridis NLES Raw data MTB Fucino 2 MTB Stations SGS MTB NLES EGNOS Projct Offic
Sits location Malaga RS (Spain) Tromso RS (Norway) EGNOS Projct Offic
Main Procssing Facilitis ESTB CPF NMA - Honfoss Euridis CMT and ESTB MCC CNES - Toulous EGNOS Projct Offic
ESTB Oprations ovrviw EGNOS Projct Offic
ESTB improvmnts in Y2002 Aussagul NLES: automat rstart procssing of th SIS CPF : highst mod (all corrctions+ intgrity) st-up automatically without SIS intrruptions iono algo corrction in May 2002 (accuracy improvd) SIS standard upgrad: DO229B + MT0/2 +GEO corrctions+mt17 RIMS: antnnas gographical positions rcomputd MTB-CPF connction: now stabl with SIS on IOR + 2 RIMS connctd to CPF (Sptmbr 2002) EGNOS Projct Offic
GIC/WAD SIS availability Targt SIS availability with corrctions: 95% EGNOS Projct Offic
SIS status information Forcast schdul for AOR-E and IOR SIS on: www.sa.int/estb Daily -mail from ESTB MCC ESTB Hlpdsk availabl for Spcific qustion at stb@sa.int EGNOS Projct Offic
ESTB Expansion mod EGNOS Projct Offic
Expansion srvic concpts 2 mods availabl with ESTB Extnsion of ECAC ara (adjacnt aras) limitd ara homognous srvic Ral Expansion (rmot aras scond srvic ara rmot location Dsign changs EGNOS Projct Offic
REAL xpansion Srvic mod Intgrity is achivd through MT27 (DO229A): MT 27 provid an incrmnt of UDRE spcific to th xpansion ara UDREI incrmnt is a configurabl paramtr of th systm Position accuracy is achivd by: Addition of a nw iono grid ovr th xpansion ara GIVE and GIVD providd on xpansion ara with MT18 and MT26 EGNOS Projct Offic
Prformancs monitoring: accuracy, intgrity EGNOS Projct Offic
Typical ESTB Prformancs in Toulous ESTB Accuracy availability(95%) Horizontal accuracy: 1.5m Vrtical accuracy: 2.5 m ESTB srvic availability: APV1: 99.4% (VAL=50m) APV2: 97.4% (VAL=20m) Ovr ESTB Srvic ara (Lds, Barclona, Dlft) Sam rang of valus EGNOS Projct Offic
Accuracy in Toulous 14 Fb. 02 2 Aug. 02 4.5m 95% 1.5m, 95% EGNOS Projct Offic
Accuracy monitord at Toulous by CNES Vrtical and horizontal rrors 20 18 16 14 12 10 8 6 4 2 0 -SV Tgd nw computation - nw RIMS coordinats VPE 95% (m) HPE 95% (m) 09.01.2002 24.01.2002 07.02.2002 28.03.2002 12.04.2002 26.04.2002 10.05.2002 24.05.2002 07.06.2002 21.06.2002 05.07.2002 19.07.2002 02.08.2002 16.08.2002 30.08.2002 13.09.2002 27.09.2002 11.10.2002 25.10.2002 mtr EGNOS Projct Offic
APV2 srvic availability in Toulous V-APV2 (%) 105 100 95 90 85 80 75 70 65 60 V-APVII (%) 09.01.2002 31.01.2002 28.03.2002 19.04.2002 10.05.2002 31.05.2002 21.06.2002 12.07.2002 02.08.2002 23.08.2002 13.09.2002 04.10.2002 25.10.2002 % tim EGNOS Projct Offic
Accuracy monitord at Lds by I3F Horizontal and v rtical rror 14 12 10 -SV Tgd nw computation - nw RIMS coordinats 8 6 HPE 95% (m) VPE 95% (m) 4 2 0 10.01.2002 24.01.2002 07.02.2002 28.03.2002 12.04.2002 26.04.2002 10.05.2002 24.05.2002 07.06.2002 21.06.2002 05.07.2002 19.07.2002 02.08.2002 16.08.2002 30.08.2002 13.09.2002 27.09.2002 11.10.2002 25.10.2002 mtr EGNOS Projct Offic
MIDAN rsults during validation configuration EGNOS Projct Offic
MIDAN iono GRID EGNOS Projct Offic
ESA is involvd in othr trials that will hlp to grow th markt for EGNOS srvics and products ESTB trials using xpansion mod: MIDAN dmonstration in th Middl East (3 additional stations), Octobr 2002 Static tsts in China (3 additional stations), mid 2003 Flight trials in Sngal, ASECNA (Dcmbr 2002), Multi-modal dmonstrations in South Amrica, March 2003 EGNOS Projct Offic
Summary EGNOS IS REAL NOW! EGNOS systm prototyp (ESTB) is oprational, and prformancs ar vry promising for EGNOS AOC ESTB usd as support for data collction, Industrials tsts, dmonstrations and prparation of oprational validation EGNOS Projct Offic