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1 S T A T E M E N T O F W O R K ocumen ile/ ie u ocumen AVIGATION AND NTEGRITY UTONOMOUS ATELLITE AVIGATION YSTEM ee y/ éé eeence/éeence issue/éiion 3 evision/évision 6 e o issue/e éiion 3--6 sus/é Issue Documen ye/ye e ocumen Semen o Wok Disiuion/isiuion ESTEC Keleln - AZ Nooijk - The Nehelns Tel. (3) Fx (3) GSP_SoW 3.6.oc

2 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e ii o iv APPROVAL Tile Nviion n Ineiy Auonomous Sellie Nviion Sysem ie issue issue 3 evision evision 6 uho ueu e e 3--6 ove y Aciviy TEB ouvé y e e 3--6 CHANGE LOG eson o chne /ison u chnemen issue/issue evision/evision e/e CHANGE RECORD Issue: 3 Revision: 6 eson o chne/ison u chnemen e(s)/e(s) h(s)/h(s)

3 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e iii o iv T A B L E O F C O N T E N T S INTRODUCTION.... Scoe.... Alicle Documens....3 Reeence Documens....4 Aconyms...3 BACKGROUND AND OBJECTIVES...5. Bckoun...5. Ojecives TASKS AND DEVELOPMENT LOGIC Scoe o civiies Deiniion Phse (Genel Tsks) Deliveles o he Deiniion Phse Deile Tsks o he Deiniion Phse SW Tool Imlemenion Tes Deiniion n Execuion Phse (Genel Tsks) Deliveles o he SW Tool Imlemenion Phse Deile Tsks o he SW Tool Imlemenion Phse Inemeie Exeimenion Phse (Genel Tsks) Deliveles o he Inemeie Exeimenion Phse Deile Tsks o he Inemeie Exeimenion Phse Finl Exeimenion Phse (Genel Tsks) Deliveles o he Finl Exeimenion Phse Deile Tsks uin he Finl Exeimenion Phse... 4 MANAGEMENT...3 TECHNICAL APPENDIX A (TECHNICAL REQUIREMENTS)...5 TECHNICAL APPENDIX B (ECSS-E-4 TAILORING)...8 TECHNICAL APPENDIX C (TECHNICAL FEATURES AUTONOMY-RELATED EXISTING IN THE GPS SYSTEM AND FORESEEN FOR THE GALILEO SYSTEM)...34 TECHNICAL APPENDIX D (OBSERVABLES FOR THE ON-BOARD OD&TS PROCESS)...4 TECHNICAL APPENDIX E (ON BOARD ORBIT DETERMINATION PROCESS)...67

4 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e iv o iv TECHNICAL APPENDIX F ON BOARD CLOCK DETERMINATION PROCESS...76 TECHNICAL APPENDIX G (ISL LINKS PHYSICAL DEFINITION)...85 TECHNICAL APPENDIX H (GROUP DELAY CALIBRATION)...9

5 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e o INTRODUCTION. Scoe The oose suy ill ssess he esiiliy eliminy sysem einiion n eomnce o Glol Sellie Nviion Sysem ein vey sinen ccucy equiemens s ell s siniicn level o sellie uonomy eyon he seciicions o he Glileo Sysem cuenly une evelomen y he Euoen Sce Aency. This ocumen escies: The civiy evelomen loic in ems o civiy hses ih hei esecive sks n eliveles. Fou ieen ojec hses e eine n escie ihin he ocumen nmely he: Deiniion Phse. SW Tool Imlemenion Tes Deiniion n Execuion Phse. Inemeie Exeimenion Phse. Finl Exeimenion Phse. The ojec seciic mnemen equiemens incluin scheule n eoin secs Finlly he ocumen conins: One licle enix on echnicl equiemens (enix A) One licle enix on enel SW equiemens (ECSS-E4 iloe) (enix C) One eeence enix esciin he echnicl uonomy-ele eues exisin in he GPS Sysem n hose oeseen o he Glileo Sysem (enix D) Fou eeence enixes (enixes E F G n H) hich shoul e consiee y he Bie s concee echnicl uielines esciin cein oienion o he esin. These enixes im meely o eine sin oin o he evelomen n o ove is esiiliy. The ciicl ssessmen n consoliion o hese inus uin he civiy evelomen coul le o eviions om he oiinl uielines eihe enhncin sysem eomnces o eucin sysem comlexiy.

6 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e o. Alicle Documens. ECSS-E-4 PB " Sce enineein - soe" n PB " DRDs" s iloe in Aenix C.3 Reeence Documens - Roe Wol: Sellie Nviion GPS GLONASS Glileo Oi Deeminion Oi Esimion Oi Simulion Ine-sellie Links Ono Ehemeis Deeminion Ineiy Monioin. (h:// /eiss/ol-oe/inhl.) - J. Hmmesh A. Honosel J. Hhn H. L. Tuene B. Eisselle R. Wol H. Mlhn P. Souy P.Tvell W.She: Ine-sellie Rnin n Auonomous Ehemeis Deeminion o Fuue Nviion Sysems. 3- Mí Doloes Líne Sme: Glileo Tes Be V Oi Deeminion n Time Synchoniion Comuion Peomnce Assessmen - Deile Pocessin Moel Volume : Pe-Pocessin n Vliion. GT-DS-GMV-TC-3 4- Mí Doloes Líne Sme: Glileo Tes Be V Oi Deeminion n Time Synchoniion Comuion Peomnce Assessmen - Deile Pocessin Moel Volume : OD&TS. GT-DS-GMV-TC-3 5- Kenneh R. Bon: The Theoy o he GPS Comosie Clock oc. ION-GPS 99 es D.R. Cox H.D.Mille The heoy o sochsic ocesses Science Pecks Chmn n Hll Lonon 965 C J. Hhn S. Beich: Common vie Clock synchoniion o emoe omic clocks usin GPS n PRARE ono ERS oc h Euoen Fequency n Time Foum Bihon UK Michel P. Sce: The NAVSTAR GPS Mse Conol Sion s KAlmn File exeience Flih Mechnics / Esimion Theoy Symosium 99 NASA coneence oceeins CP 3 99

7 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 3 o.4 Aconyms EDDN ERP ESA G/S GACF GCS GLONASS GMS GNSS GPS GSP GSS GST ISL ITRF LEO MCF MDDN MEO MGF MKMF MNE MSF MUCF NASA ODTS OSPF PRSKMF PTF S/C S/S SKMF SPF SPR SRP SVN SW TWTT Exenl D Disseminion Neok Eh Roion Pmees Euoen Sce Aency Goun Semen Goun Asses Conol Fciliy Goun Conol Semen Glol Nviion Sellie Sysem (Russin) Goun Mission Semen Glol Nviion Sellie Sysem (eneic) Glol Posiionin Sysem Genel Suies Pomme Glileo Senso Sion Glileo Sysem Time Ine Sellie Links Inenionl Teesil Reeence Fme Lo Eh Oi Mission Conol Fciliy Mission D Disseminion Neok Meium Eh Oi Messe Geneion Fciliy Mission Key Mnemen Fciliy Monioin Neok Equimen Mission Suo Fciliy Mission Ulink Conol Fciliy Nionl Aeonuics n Sce Aminision Oi Deeminion n Time Synchoniion Oi n Synchoniion Pocessin Fciliy Pulic Reule Sevice Key Mnemen Fciliy Pecise Timin Fciliy Scec Sce Semen Sellie Key Mnemen Fciliy Sellie Pocessin Fciliy Soe Polem Reo Sol Riion Pessue Sce Vehicle Nume Soe To Wy Time Tnse

8 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 4 o ULS UTC VSAT WAN Ulink Sion Univesl Time Cooine Vey Smll Aeue Teminl Wie Ae Neok

9 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 5 o BACKGROUND AND OBJECTIVES. Bckoun This suy is inene vlule inu o imovin esen Nviion Sysems n uue evoluions o GNSS Sysems (e.. Glileo II) The Glileo Sellie Nviion Sysem cuenly une evelomen y Euoen Sce Aency is inene o ovie siniicnly imove eomnce level in ems o ccucy ineiy n coninuiy hen come ih exisin Sysems. Neveheless cuen eomnce ojecives e on one hn no suicien o cein nume o hihly emnin licions e.. solue suveyin (no ieenil echnoloy se); n on he ohe hn hve yiele o consiele level o comlexiy n eeniliy on he eloymen o Goun Semen insucue mosly in ems o ckin neok (Glileo Senso Sions(GSS)) mission ulink neok (Ulink Sions (ULS)) n Mission D Disseminion Neok. Desie hese cuen iiculies eomnce es o uue Glol Nviion Sellie Sysem hve o e moe miious hile incesin o mininin Sysem vililiy u eucin miclly he eeniliy on Goun Semen sses. All hese ee imovemens e vey chllenin o he exisin n mue echnoloy s lie ihin he evelomen o he Glileo Sellie Nviion Sysem. Alenive n innovive echnoloies n mehos in he nviion e coul e he key o ulil hese moe emnin equiemens.. Ojecives The ojecives o his civiy e o invesie lenive innovive echnoloies n mehos in he nviion e ih he vie o inin s minimum he olloin eneis on cuen Sysems: Enhnce sellie uonomy. Reuce G/S insucue in ems o ckin neok n ulink sions Sisy sevee secuiy consins in ems o eohicl locion o he G/S ciliies. Enhnce ccucy o he oi n clock nviion Hihe eesh e o nviion Reuce oeionl cos

10 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 6 o In vie o he ove ojecives he Conco shll invesie s minimum he olloin echnoloies n mehos: Ine-sellie links nin sinls Ine-sellie nin mesuemens ocesse in he Goun Semen (G/S) On o oi n clock eeminion Ine-sellie communicion links o exchne eeen scecs nviion elemey elecommn n nin In he ove eine hih level me his Suy es o ieen scenios nmely: The is scenio nme s Glileo-like consellion nlyes he eneis o ISL hen nviion ocessin is eihe eniely o illy loce on o ech scec in Glileo-like consellion. The secon scenio nme s Glileo-like LEO consellion nlyes he eneis o ISL hen nviion ocessin e eihe eniely o illy loce on o ech scec in Glileo-like scenio in hich e LEO sellies e incooe o cliion n monioin uose. In his Suy he Glileo-like consellion is nme s Pincil Consellion hile he LEO sellies e nme s Auxiliy sellies. The Suy shll exloe n cliy he vnes n cks o ieen echniques o he on-o ocessin consiein ISL inu osevles enein he sellie ois n clocks. The Suy shll nlye he echnicl esiiliy o enhncin sellie ccucy n uonomy in he ovision o nviion y mens o on-o ocessin consiein ISL inu osevles; ih o ihou inomion exchnes eeen ocessos in ieen sellies. I shll cliy he: Sey o on-o sellie nviion (oi n clock) eeminion n eicion incluin on-o sellie oi n clock eeminion n eicion loihms The level o ineenence om oun se sses in eeminin n eque clock eeence sey (e.. on-o clock ensemle). Aoch o he nviion exchne eeen sellies o he Sce Semen. Aoch o he nviion exchne eeen Sce Semen n Goun Semen (e.. o linkin he nviion o UTC n ITRF).

11 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 7 o Peomnce ssessmen in elevn scenios covein oh nominl n ee consellion scenios Fo his uose he civiies h e necessy hve een ieniie n hve een sucue in ou hih level ses hich e lise heee: Tsks ein he on o oi eeminion ocess Tsks ein he on o clock eeminion ocess Tsks ein ISL hysicl chceiion Tsks ein ou ely el ime cliion

12 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 8 o 3 TASKS AND DEVELOPMENT LOGIC 3. Scoe o civiies [3..] The conco shll ovie jusiie esin (chiecue n echnoloies) o n nviion sysem imlemenin ISL h ovies nviion osevles oi n clock eicion. A esin n chiecul einiion is ley ovie ih he ITT (lese see enixes) hoeve he enee my chllene hese suesions n is invie o oose lenive soluions o moiicions ih eque jusiicion. [3..] Wihin he chiecul esin civiies he olloin civiies shll e eome y he conco: Selecion o he echnicl soluion o he ISL-se chiecue incluin eile einiion o is comonens he echnoloies n esin ives. Conimion n jusiicion o he esiiliy o he ecommene soluion. Ieniicion o SW ool o e emloye in he civiy n jusiicion o he einiive choice ken. Develomen o he SW ools o eom he civiy (s s ossile y iloin o exisin SW ools) Deiniion o he exeimenion o e eome. Anlysis o he esuls n conclusions. [3..3] These civiies shll e cke u y he ssessmen o echniques echnoloies n mens o imlemen he ISL-se nviion sysem. [3..4] The selecion jusiicion n conimion o soluion o n ISL-se nviion sysem shll e suoe y quniive nlysis [3..5] The civiies shll e cie ou in 4 sequenil hses ieniie s ollos: Deiniion Phse. SW Tool Imlemenion Tes Deiniion n Execuion Phse. Inemeie Exeimenion Phse. Finl Exeimenion Phse. [3..6] Ech one o hese hses shll e sujec o evie y he Aency ho ill ecle he ojecives eine o his hse s chieve o ile.

13 3. Deiniion Phse (Genel Tsks) Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 9 o [3..] The conco shll nlye he eeence meil ovie y he Aency (Aenixes E F G H n I). [3..] The Deiniion Phse shll inclue les he olloin civiies: Anlye he echnicl seciicion n licle ocumens. Peom he uncionl ecomosiion n he chiecul esin o he sysem incluin esin e os n selecion o he seline conce. Quniive enineein nlyses o jusiy he chiecue n esin. Quniive enineein nlyses comin ieen chiecul soluions Ieniicion o elemens hich oul e ne esin. Assessmen o esiiliy o ne esin elemens Ieniicion o ciicl echnoloies n quniicion o key mees.o ne esin elemens Peliminy einiion o exeimenion es cses n es scenios. Selecion n jusiicion o ODTS SW ool o e use o he civiy (e.. Benese). Deiniion o he moiicions equie on he SW ool in oe o eom he oeseen exeimenion Auonomy ciliy vesus G/S comlexiy G/S simliicion in he enhnce Sysem [3..3] The Deiniion Phse shll en e successul comleion o he Deiniion Revie (DR). Successul comleion o his evie ill le o uhoiion y he Aency o s he civiies coesonin o he nex hse. 3.3 Deliveles o he Deiniion Phse [3.3.] The conco shll elive he Deiniion Revie cke ih conen ccoinly o he le elo: REVIEW DR DELIVERABLE (BY DEFAULT DOCUMENT TITLE) ISSUE Sysem Achiecue Deiniion File (SADF) Issue. Sysem Achiecue Jusiicion File (SAJF) Issue. (Incluin eile esciion o he e o echnoloies) Exeimenion Plom Deiniion File (EPDF) Issue

14 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e o Exeimenion Plom Accence Tes Poceues (EPAP) Tes Cse Exeimenion Pln (TCEP) (Desciin he Tes Cses n Scenios) On-o Oi Deeminion Deile Pocessin Moel On-o Clock Deeminion Deile Pocessin Moel Exeimenion Plom Use Mnul Issue (Finl) Issue. Issue. Issue. D [3.3.] The conco shll ue he cke o Aency ovl s esul o he evie iscussion n eemens. 3.4 Deile Tsks o he Deiniion Phse The Deiniion Phse shll cove s minimum he olloin sks y mens o nlysis: Rein he consellion einiion [3.4.] The Bie shll oimie he uxiliy consellion einiion. The consellion mees escie in he Aenix A (Technicl Requiemens) shll e oimie y he Conco incluin he nume o uxiliy sellies hich e meely in che o eomin some sysem inenl uncions [3.4.] The conco shll selec n exisin ODTS ool (e.. Benese) lloin he equie ions o he civiy Rein he oi eeminion ocess shll e unesoo s oh oi esiuion n oi eicion houhou he enie ocumen. The Suy shll exloe n cliy he vnes n cks o he ieen lenives o he on-o oi eeminion n eicion ocess nlyin in eil les he olloin ele es: [3.4.3] The su-se o S/S o S/S osevles o e ocesse on o ech scec o oi eeminion

15 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e o [3.4.4] The su-se o S/S o G/S osevles o e ocesse on o ech scec o oi eeminion [3.4.5] The ye o oi esimion ocess (e.. Bch Klmn ile ec) [3.4.6] The esime mees. The nlysis shll inclue n ssessmen on he enei o esimin: Sol Riion Pessue coeiciens Eh Roion Pmees el coeiciens [3.4.7] The on-o CPU ime consumion inicin he minimum ime sn eeen consecuive eeshmens o he ocs oi [3.4.8] The oe consumion o he on-o Oi Deeminion o [3.4.9] The chievle eomnce in ems o ocs oi eo in nominl scenios (e.. vililiy o he ull S/S n G/S) [3.4.] The eomnce eion in ems o ocs oi eo in nominl scenios (e.. vililiy o he ull S/S n G/S) hen conc ih he G/S is ineue Rein he clock eeminion ocess shll e unesoo s oh clock esiuion n clock eicion houhou he enie ocumen The Suy shll exloe n cliy he vnes n cks o ieen lenives o he on-o clock eeminion n eicion ocess nlyin in eil les he olloin ele es: [3.4.] The su-se o S/S o S/S osevles o e ocesse on o ech scec o clock eeminion [3.4.] The einiion o he nviion sysem ime eeence ineenenly om G/S clocks [3.4.3] The elivisic eecs on he sellies on o clocks hen oseve om eihe ohe scecs o om oun sions [3.4.4] The ye o clock esimion ocess (e.. Bch Klmn ile ec) [3.4.5] The esime clock mees [3.4.6] The on-o CPU ime consumion inicin he minimum ime sn eeen consecuive eeshmens o he ocs clock [3.4.7] The oe consumion o he on-o Clock Deeminion o

16 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e o [3.4.8] The chievle eomnce in ems o clock eo in nominl scenios (e.. vililiy o he ull S/S) [3.4.9] The eomnce eion in ems o ocs clock eo in nominl scenios (e.. vililiy o he ull S/S) hen conc ih he G/S is ineue [3.4.] The su-se o S/S o G/S osevles o e ocesse on o ech scec o he esimion o he seein mees necessy o ee he nviion sysem ime o G/S se clocks o ime exenl eeences [3.4.] The chievle eomnces in ems o seein mees eo in nominl scenios (e.. vililiy o he ull S/S) [3.4.] The eomnce eion in ems o seein mees eo in nominl scenios (e.. vililiy o he ull S/S) hen conc ih he G/S is ineue Rein he ISL link hysicl einiion he Suy shll exloe n cliy he vnes n cks o ieen lenives. The Suy shll cliy he: [3.4.3] Oimiion o he ISL conneciviy scheme eeen scecs o in ohe os ih h sellies is iven sellie suose o eslish link [3.4.4] Oimiion o he conneciviy scheme eeen scecs n oun [3.4.5] Nume o sysem inenl equencies o nin eeen incil sellies (see Aenixes) [3.4.6] Fequency n o he sysem inenl equencies s comomise eeen key mees such s he nenn sie o he oion losses n ITU lloce ns o ISLs. Selece n shll e comile ih n ccue conol o he nenn ou ely. [3.4.7] Nume o sysem exenl equencies cyin nin sinls o he uses (see Aenixes) [3.4.8] Fequency su-n o he sysem exenl equencies. The equency n o he sysem exenl equencies is he L n incluin y eul he Glileo equencies Rein he nin sinls hey shll consis on seuo-nom sequences hich e enee in synchonie y y oh nsmie n eceive; n nsmie moule on io-equency cie. The esin is oiene o coss-link osevles. The Suy shll cliy he:

17 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 3 o [3.4.9] Chceisics o he nin sinl in ems o oe ensiy uncion [3.4.3] Chceisics o he nin sinl eneion uni [3.4.3] Link ue [3.4.3] Chceisics o he nin mesuemens quliy [3.4.33] The nin sinls lein o nin ccucy comile ih he Suy s ojecives in ems o oi n clock eeminion ccucy. [3.4.34] The selecion o he nin sinls shll e s e-cquisiion Rein he coss-links nenn esin he suy shll nlye he: [3.4.35] Fesiiliy n convenience o hse y se nenn ih is iin elemens lce symmeiclly on sheicl suce [3.4.36] Fesiiliy n convenience o lenive esins oose y he Conco such s ssive en [3.4.37] Gou ely inouce y he nenn susysem in he nin sinls n is oenil eenency vesus em oienion Rein he communicion links. [3.4.38] The Suy shll nlye he ossiiliy o e-usin he nin equencies o communicion uoses eihe hile nin is ein eome o uin ieen ime slo exclusively eice o his uose; o hehe i is necessy o eslish ieen se o sysem inenl equencies o communicion uoses. The Suy shll cliy he: [3.4.39] Exchne inomion incluin nviion nin elemey n elecommn [3.4.4] Necessy nih [3.4.4] Communicion sinl chceisics (incluin mulile ccess schemes) [3.4.4] Technoloy in ems o on-o nsmiin n eceivin chins [3.4.43] Peomnce ssessmen in elevn scenios in ems o BER n communicion elys

18 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 4 o [3.4.44] Tnsmiin n eceivin on o nenns [3.4.45] Comiiliy ih ohe RF links [3.4.46] Link ue Rein he ou ely cliion [3.4.47] The Suy shll exloe n cliy he vnes n cks o ieen mehos o he sysem exenl nin sinls ou ely cliion eihe se on he uxiliy sellies osevions o on sellie locl mens o on ny ohe lenive meho. [3.4.48] The esciion o he on-o equimen equie o eomin his cliion Rein he oeionl conce [3.4.49] The Suy shll ieniy he ieen oeions moes iniilision sich eeen oun-suoe n uonomous moes [3.4.5] The Suy shll oose eliminy hih level sysem oeionl conce [3.4.5] The Suy shll ieniy he necessy ions o he nviion loihms in oe o suo he oose moe nsiions. All sks shll consie he esin uielines escie in he Aenixes E F G n H. These enixes im eihe o eine he sin oin o he evelomen o meely o ove is esiiliy. The suy shll nlye he eneis om eviin om hese uielines i s esul eihe eomnce imoves o sysem comlexiy iminishes.

19 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 5 o 3.5 SW Tool Imlemenion Tes Deiniion n Execuion Phse (Genel Tsks) [3.5.] The conco shll selec n exisin ODTS ool (e.. Benese) lloin he equie ions o he civiy. [3.5.] The SW ool shll e e s necessy in oe o mke ossile he ocessin o ISL mesuemens in iion o he convenionl sce o oun mesuemens. [3.5.3] The conco shll evelo he uxiliy ools necessy o enee he inu mesuemens o he SW Tool moe ecisely synheic ISL mesuemens n sce o oun mesuemens.. [3.5.4] The SW ool use inece shll llo lexile einiion o he ISLs in ems o nume n in ems o ye mons he olloin: Boh S/Cs e o he nviion consellion One S/Cs is o he nviion consellion n he ohe S/C is n uxiliy LEO Boh S/Cs e o he uxiliy consellion Alloin simulions no only on he seline chiecue esulin om he Deiniion Phse u lso ih ohe cominions o ISLs. [3.5.5] The SW ool ouu shll ovie he ccucy o he oi n clock eeminion n eicion o ech S/C. [3.5.6] The conco shll eom vliion o he ool ccoin o he nees o he suy [3.5.7] The conco shll eine he es cses n scenios o exeimenion covein oh he seline chiecue n ohe ossile chiecues eive om ieen cominions o ISLs n oun o sce osevles. The exeimenion shll inclue les he olloin hee scenios: ISLs eeen MEO nviion sellies ISLs eeen MEO nviion sellies n eeen MEO n LEO sellies ISLs eeen MEO nviion sellies eeen MEO n LEO sellies n eeen LEO sellies [3.5.8] The conco shll ue uin his hse he ocumenion ouce in evious hses in oe o inu he moiicions h ise s he suy evolves.

20 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 6 o [3.5.9] The SW Tool Imlemenion Tes Deiniion n Execuion Phse shll en e successul comleion o he SW Imlemenion n Tes Revie/Exeimenion Tes Revie (ERR). 3.6 Deliveles o he SW Tool Imlemenion Phse [3.6.] The conco shll elive he SW Imlemenion n Tes Revie/Exeimenion Tes Revie cke ih conen ccoinly o he le elo: REVIEW ERR DELIVERABLE (BY DEFAULT DOCUMENT TITLE) Exeimenion Plom Accence Tes Resuls (EPAR) (Incluin ll imlemene ions) ISSUE Issue (Finl) Sysem Achiecue Deiniion File (SADF) Issue. Sysem Achiecue Jusiicion File (SAJF) Issue. Tes Cse Exeimenion Pln (TCEP) Issue. On-o Oi Deeminion Deile Pocessin Moel On-o Clock Deeminion Deile Pocessin Moel Issue. Issue. Exeimenion Plom Use Mnul Issue.

21 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 7 o [3.6.] The conco shll ue uin his hse he ocumenion ouce in evious hses in oe o inu he moiicions h ise s he suy evolves. [3.6.3] The conco shll ue he cke o Aency ovl s esul o he evie iscussion n eemens. 3.7 Deile Tsks o he SW Tool Imlemenion Phse The SW Tool Imlemenion Tes Deiniion n Execuion Phse shll cove s minimum he olloin sks y mens o nlysis: [3.7.] The evie n einemen o he ouus o Tsks [3.4.9] u o [3.4.34] [3.7.] The evie n einemen o he ouus o Tsks [3.4.47] u o [3.4.48]

22 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 8 o 3.8 Inemeie Exeimenion Phse (Genel Tsks) [3.8.] This hse shll ovie he is exeimenion o he ISL se chiecue o nviion sysems. The conco shll eom uin his hse he exeimenion eine in evious hses. [3.8.] The exeimenion ln shll e moiie n e s equie uin he civiy ccoin o he nees n evoluion o he suy. [3.8.3] The conco shll eom simulions o ieen scenios in oe o ssess he eomnce chieve e o ih he comlexiy o he oose chiecue. [3.8.4] Soe Polem Reo (SPR) in he SW ool cnno esul in eucion o he exeimenion scoe. [3.8.5] The conco shll ue uin his hse he ocumenion ouce in evious hses in oe o inu he moiicions h ise s he suy evolves. [3.8.6] The Inemeie Exeimenion Phse shll en e successul comleion o he Inemeie Exeimenion Phse Revie (IER) 3.9 Deliveles o he Inemeie Exeimenion Phse [3.9.] The conco shll elive he Inemeie Exeimenion Phse Revie cke ih conen ccoinly o he le elo: REVIEW IER DELIVERABLE (BY DEFAULT DOCUMENT TITLE) ISSUE Tes Cse Exeimenion Resuls (TCER) Issue Sysem Achiecue Deiniion File (SADF) Issue. Sysem Achiecue Jusiicion File (SAJF) Issue. Tes Cse Exeimenion Pln (TCEP) Issue.

23 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 9 o On-o Oi Deeminion Deile Pocessin Moel Issue. On-o Clock Deeminion Deile Pocessin Moel Issue. Exeimenion Plom Use Mnul Issue. [3.9.] The conco shll ue uin his hse he ocumenion ouce in evious hses in oe o inu he moiicions h ise s he suy evolves. [3.9.3] The conco shll ue he cke o Aency ovl s esul o he evie iscussion n eemens. 3. Deile Tsks o he Inemeie Exeimenion Phse The Inemeie Exeimenion Phse shll cove s minimum he olloin sks mosly y mens o exeimenion: [3..] The evie n einemen o he ouus o Tsks [3.7.] n [3.7.] [3..] The eile n exhusive exeimenion o he esin eloe in he Deiniion Phse n consolie uin he SW Tool Imlemenion Phse. Fo his uose ll nlysis om [3.4.9] u o [3.4.] n om [3.4.47] u o [3.4.48] shll e elce y exeimenion esuls oine ih he hel o he SW ool. [3..3] The chievle eomnce in ems o ocs oi eo in ee scenios (e.. vililiy o meely euce S/S o/n euce G/S) [3..4] The eomnce eion in ems o ocs oi eo in ee scenios (e.. vililiy o meely euce S/S o/n euce G/S) hen conc ih he G/S is ineue [3..5] The eil ocessin moel o he oi esimion loihms equion level [3..6] Rousness o he eee lenive o exenl euions (e.. conmine osevles) [3..7] The chievle eomnce in ems o ocs clock eo in ee scenios (e.. vililiy o meely euce S/S)

24 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e o [3..8] The eomnce eion in ems o ocs clock eo in ee scenios (e.. vililiy o meely euce S/S) hen conc ih he G/S is ineue [3..9] The chievle eomnces in ems o seein mees eo in ee scenios (e.. vililiy o meely euce S/S) [3..] The eomnce eion in ems o seein mees eo in ee scenios (e.. vililiy o meely euce S/S) hen conc ih he G/S is ineue [3..] The eil ocessin moel o he clock esimion loihms equion level. Noe h clock esimes e elive o he Nviion Sysem Reeence Time [3..] The eil ocessin moel o he Nviion Sysem Reeence Time seein loihms equion level [3..3] Rousness o he eee lenive o exenl euions e.. conmine osevles

25 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e o 3. Finl Exeimenion Phse (Genel Tsks) [3..] Duin his hse he conco shll cy ou he civiies s escie in he evious hse enosin n imlemenin he inus ovie y he Aency in he Inemeie Exeimenion Resuls Anlysis Phse. [3..] See equiemen [4.4.] [3..3] See equiemen [4.4.3] [3..4] See equiemen [4.4.4] [3..5] See equiemen [4.4.5] [3..6] See equiemen [4.4.6] [3..7] The Finl Exeimenion Phse shll en e successul comleion o he Finl Exeimenion Phse Revie (FER). Successul comleion o his evie ill le o he comleion n close ou o he suy. 3. Deliveles o he Finl Exeimenion Phse [3..] The conco shll elive he Inemeie Exeimenion Phse Revie cke hich conen ccoinly o he le elo: REVIEW FER DELIVERABLE (BY DEFAULT DOCUMENT TITLE) ODTS SW ocue uin civiy incluin ll necessy licenses n liies. Exeimenion Plom (HW) ISSUE N/A Finl vesion SW eveloe uin civiy incluin ll necessy licenses n liies. Tes ouce in he simulions n use o he nlysis. Finl vesion Finl vesion

26 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e o Finl eo (incluin synhesis o he esuls n he conclusions) Issue. Sysem Achiecue Deiniion File (SADF) Issue. Sysem Achiecue Jusiicion File (SAJF) Issue. On-o Oi Deeminion Deile Pocessin Moel On-o Clock Deeminion Deile Pocessin Moel Issue. Issue. Exeimenion Plom Use Mnul Issue. [3..] The conco shll ue uin his hse he ocumenion ouce in evious hses in oe o inu he moiicions h ise s he suy evolves. [3..3] The conco shll ue he cke o Aency ovl s esul o he evie iscussion n eemens. 3.3 Deile Tsks uin he Finl Exeimenion Phse The Finl Exeimenion Phse shll cove s minimum he olloin sks y mens o exeimenion: [3.3.] The evie n einemen o he ouus o Tsks [3..] u o [3..3] y mens o iionl exeimenion

27 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 3 o 4 MANAGEMENT The sn equiemens o mnemen eoin n meeins hich e escie s n enix o he conc secions n 3 esecively shll ly o his civiy. Secions 4 n 5 o he menione enix on eliveles n commecil evluion esecively e no licle o his suy. The olloin iionl equiemens e incooe o he menione enix secion on mnemen: The conco shll execise n eecive n nsen mnemen o he ok oviin ESA ny ime ih ll inomion necessy o uneke coecive mesues i neee. The conco shll onise he civiy oose Wok Bekon Sucue (WBS) n ovie n eque llocion o sks. The ovell civiy shll e comlee in monhs ih he olloin inemeie milesone es: Milesones Kick o (KO) Deiniion Phse Revie (DR) SW Tool Imlemenion Tes Deiniion n Execuion Phse Revie (ERR) Inemeie Exeimenion Phse Revie (IER) Finl Exeimenion Phse Revie (FER) De (monhs) KO KO 4. m KO 9. m KO.5 m KO. m Ae successul comleion o ech o he inemeie evies (Deiniion Phse Revie SW Tool Imlemenion Tes Deiniion n Execuion Phse Revie n Inemeie Exeimenion Resuls Anlysis Phse Revie) he Aency ill uhoise he coninuion o he civiy n he iniiion o he olloin hse. The olloin iionl equiemens e incooe o he menione enix secion on eoin: Minues shll e isiue in Wo o/n PDF om. Any esenions one he meein shll e che o he minues in PPT om.

28 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 4 o The olloin equiemens elce eniely he menione enix secion 4 on eliveles: All iems ocue o eveloe une he conc shll e he oey o he Aency he closue o he conc The Conco shll sumi o he Aency o inomion o ovl (s licle) ll echnicl noes seciicions es n emonsion lns n ohe ocumens s hey ecome ville uin he execuion o he conc he les y he ee e o elivey Any echnicl ocumenion o e iscusse meein ih he Aency shll e sumie les 5 okin ys eeks io o such meein The Conco shll sumi echnicl ocumens om suconcos o he Aency nomlly only e evie n ccence The Conco shll ive o he Aency io noice ihou ely o ny meeins ih hi ies o e hel in connecion ih he conc. The Aency eseves he ih o iciion in such meeins. Wih ue noice o he Conco n ih he Conco's eemen he Aency eseves he ih o invie hi ies o meeins o cilie inomion exchne. Fo ll meeins he Conco shll ensue h oe noice is iven les eeks in vnce. The Conco shll e esonsile o ensuin he iciion o his n o he su-conco(s) esonnel s neee Fo ech meein he Conco shll ovie n en n hnous o his esenion (i ny) I eeme necessy he Aency o he Conco my eques hoc meeins. Nominlly hese ocumens n eos e o e ovie in eleconic om in PDF (incluin sinues) n in MS-WORD The lis o conc ouu n eliveles iven in evious che is neihe exclusive no exhusive n nees o e mene y he conco s equie.

29 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 5 o TECHNICAL APPENDIX A REQUIREMENTS) (TECHNICAL REQ-: The Suy shll e eome o o ieen consellions ssocie o he Scenio I n Scenio II hich e escie heee. REQ-: The Scenios e eine in ems o Pincil n Auxiliy sellies ein he Pincil Sellies hose hich ocs nviion sinls o he GNSS use n ein he Auxiliy Sellies hose meely in che o some inenl sysem uncionliies nsen o he GNSS use. REQ-3: SCENARIO I PRINCIPAL SATELLITES Wlke einiion / / 7/3/ (GALILEO) Nume o sellies 7 Nume o lnes Nume o sellies e lne Pen uni Slo scin 3 s 9 u 36 o / 3.3 * u 4 Noe scin s * u Sellie hsin * u 3.3 Inclinion Oi ius 56 (GALILEO) 96 km (GALILEO)

30 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 6 o Rih scension o he is lne noe α AUXILIARY SATELLITES No licle The Scenio I consies exclusively Pincil Sellies n coeson excly o he Glileo consellion. Tles ove summie ll consellion mees. REQ-4: SCENARIO II PRINCIPAL SATELLITES As in Scenio I (GALILEO) AUXILIARY SATELLITES Wlke einiion Nume o sellies Nume o lnes Nume o sellies e lne Pen uni Slo scin (scin eeen scecs in he sme lne) Noe scin (scin eeen lnes on he equo) Sellie hsin (scin eeen scecs on consecuive lnes) / / TBD (6/3/) 6 3 s u 36 o / 6 * u 8 s * u * u 6

31 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 7 o Inclinion Oi ius Rih scension o he is lne noe s TBD TBD (LEO) u * o α α 6 The Scenio II consies he sme Pincil Sellies s he Scenio I his is he Glileo MEO consellion lus euce LEO consellion o Auxiliy Sellies. Tle ove summies ll uxiliy consellion mees. REQ-5: The nume o uxiliy sellies shll e minimie s s ossile REQ-6: The suy shll e oi eicion ccucies elo cenimee level REQ-7: The suy shll e clock eicion ccucies elo cenimee level REQ-8: The ou ely el ime cliion shll e su-cenimee level ccucy

32 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 8 o TECHNICAL APPENDIX B (ECSS-E-4 TAILORING) Soe ocess min o ok ckes The soe evelomen ocesses inouce in ECSS-E4 B e me on he ok ckes n civiies o sks o he Semen o Wok in he olloin y: ECSS-E4 B ocesses & civiies Sysem Enineein Pocesses ele o soe: - Sysem equiemens - Sysem chiecue - Sysem esin & He/Soe iionin Reeence in he Semen o Wok Deiniion hse ( o*) *: Exeimen Plom Deiniion File On Bo Oi Deeminion Deile Pocessin Moel On Bo Clock Deeminion Deile Pocessin Moel SRR Soe Requiemens & Achiecue Enineein Pocess: - Soe equiemens seciicion - Inece Conol Documen - Soe chiecue Mee ih PDR Deiniion hse ( o*) *: On Bo Oi Deeminion Deile Pocessin Moel On Bo Clock Deeminion Deile Pocessin Moel PDR Soe Desin & Imlemenion Enineein Pocess: - Deile esin - Coe - Uni ess - Ineion ess DR SW ool imlemenion Tes einiion n Execuion Phse ( o)

33 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 9 o DDR Soe Vliion Pocess: - Soe vliion TS CDR Soe Vliion Pocess: -Soe Vliion RB N/A N/A N/A SW ool imlemenion Tes einiion n Execuion Phse ( o) QR Soe Delivey & Accence AR Soe Oeion Soe minennce Soe mnemen ocess ERR Imlicily inclue in he Finl Exeimen Phse FER N/A Duin he hole lie cycle o evoluive minennce i ODTS soe is COTS o e moiie Duin he 6 monhs ny eio o coecive minennce o he ne eveloe iems (e.. uiliies) No omlly equie since mnemen cos e no he keys ives ( COST is Fim Fixe Pice DELAY is lso ixe) o his ojec u SDP ( h cn e o lol sysem evelomen ln) is ske in he oosl Soe veiicion ocess - Exeimen Plom RB/TS SVTS/SATS ceily - Timin & Siin Bue Reo - Numeicl Accucy Reo

34 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 3 o Lis o ECSS-E4 licle equiemens ECSS-E-4 B om 8 Noveme 3 5. Sysem Enineein Pocesses ele o soe 5... Sysem equiemens seciicion Sysem esin Conol n ineces o sysem level ineion Soe minennce equiemens 5.3 Soe Mnemen Pocess (only oosl) Deiniion o soe lie cycle Soe lie cycle ieniicion Ieniicion o inus n ouus ssocie o ech hses Ieniicion o ocumenion elevn o ech Ieniicion o inece eeen he evelomen n he minennce ocesses Requiemens seline he SRR ( PDR in h cse ) Soe echnicl seciicion hse PDR (Peliminy Desin Revie) soe veiicion n vliion ocess QR (Quliicion Revie) AR (Accence Revie) Suo o soe evies Technicl evies Inece einiion Technicl ue n min hilosohy Technicl ue n min sus ech milesone Eslishmen n ocumenion o soe equiemens / soe equiemens seciicion: soe equiemens uncionl n eomnce e soe equiemens einiion n DBse equiemens soe equiemens Ineces exenl o he soe iem Ieniicion o equiemens unique ieniie Tnsomion o soe equiemens ino soe chiecue Soe esin esciion Soe esin ocumenion Soe chiecul esin conens Evluion o euse o eeveloe soe Anlysis o oenil eusiliy Conucin eliminy Desin Revie (PDR) Deile esin o ech soe comonens Develomen n ocumenion o he soe inece eile esin

35 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 3 o ECSS-E-4 B om 8 Noveme Develomen n ocumenion o he soe use mnul Develomen n ocumenion o he soe unis es oceues n es 5.6 Soe vliion ocess Develomen n ocumenion o soe vliion esin seciicion (SVTS) RB Conucin he vliion RB Uin he soe use mnul Conucin Quliicion Revie (QR) 5.7 Soe elivey n ccence 5.7. Soe elivey n insllion Peion o he soe ouc Soe ccence Accence es lnnin Accence es execuion Execule coe eneion n insllion Sulie s suo o cusome s ccence c Accence esin ocumenion Evluion o ccence esin Conucin n Accence Revie (AR) 5.8 Soe veiicion ocess Veiicion civiies Veiicion o es seciicions / s suo o veiicion o soe equiemens & chiecul esin / siin (memoy) n imin (CPU lo) esimion c/ s suo o veiicion o soe coin n esin / siin (memoy) n imin (CPU uiliion in WCET) clculion Behviou moellin veiicion olem eoin n hnlin Imlemenion o coniuion mnemen ocess Polem nlysis Polem veiicion Develomen o oions o moiicions Documenion o olem nlysis n imlemenion Cusome ovl o selece moiicions oions Anlysis n ocumenion o ouc moiicion Documenion o soe ouc chnes Invokin o soe enineein ocess o moiicion imlemenion

36 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 3 o Documen Requiemen Lis [s seciie in ECSS-E-4 B (5 Noveme 4)] The ECSS soe sns e comlee ih some DRDs esciin he mos imon soe ocumens. The DRD lis is suse o he exhusive lis o ocumens o e ouce in oe o cove ll he ok ouu equie y he ECSS sns. The exece ouu o he equiemens esulin o his iloin shll e lce in he ocumens ieniie in he ih column o he le elo GSP Suy elivele. I is hihlihe h he le column o he le elo ECSS Documenion oes no ee o he cul eliveles o he GSP civiy u shoul e unesoo s lis o ouus hich shoul e ihin he el civiy eliveles (oun in he ih column). Noe h mos o he equiemens ouus shoul imly meely ie secion ihin one o he ieniie GSP eliveles esul o limie eo hich shoul no jeoie he exeimenion civiies hich e he coe n ojecive o he GSP civiy. Noe s ell h his secion ees exclusively o ny ne SW eveloe ihin he civiy n necessy o he exeimenion. ECSS Documen SW Sysem Seciicion SW Inece Requiemens Documen Sysem iion ih einiion o iems Sysem Coniuion Iem Lis ECSS Aconym in DRD SSS - GSP Suy Delivele Sysem Achiecue Deiniion File Exeimenion Plom Deiniion File Soe Requiemens SRS On-Bo Oi Seciicion Deeminion Deile Soe Inece Conol - Pocessin Moel Documen On o Clock Soe Desin Documen: SDD Deeminion Deile Soe sic n/o ynmic Pocessin Moel chiecue Soe Relese Documen SRD ODTS & uiliies soe elese noes Soe Delivey - ODTS soe execule licenses liies ocumenion inu n ouu Soe Use Mnul SUM Exeimenion Plom Use Mnul Soe Vliion Tesin SVTS Exeimenion Plom

37 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 33 o Seciicion RB Accence Tes Pln - Soe Vliion Tes Reo - RB Accence Tesin - Documenion Accence Tes Reo - (Anlyses Insecion & RoD) - veiicion eo RB Soe Tceiliy Mices - Accence Tes Poceues Exeimenion Plom Accences Tes Reo Exeimenion Plom Accence Tes Poceues Soe Reuse File (i ny) SRF ODTS Soe Reuse File Soe Bue Reo - Exeimenion Plom Numeicl Accucy Anlysis - Accence Tes Reo Poceues (secil es) Vliion Evluion Reo - RB Exeimenion Plom Accences Tes Reo Soe Accence D Pcke - SW elivey noice Pocue Soe Comonen Liss - Sysem Achiecue Deiniion File PR & NCR - Moiicion nlysis eo -Polem nlysis eo Soe Develomen Pln ( oosl only) Exeimenion Plom Deiniion File - SPR n CR SDP As o he Poosl

38 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 34 o TECHNICAL APPENDIX C (TECHNICAL FEATURES AUTONOMY-RELATED EXISTING IN THE GPS SYSTEM AND FORESEEN FOR THE GALILEO SYSTEM) GALILEO Glileo ill e n ineenen lol Euoen-conolle sellie-se nviion sysem. I ill hve consellion o sellies monioe n conolle y Goun Conol Semen. The ovell Glileo Sysem is illuse in he iue ove. The Glileo Sce Semen ill comise consellion o hiy sellies in meium-eh oi (s eine in he le elo). Ech sellie ill ocs ou nin sinls cyin clock synchonision ehemeis ineiy n ohe eenin on he icul sinl.

39 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 35 o GALILEO SPACE SEGMENT Wlke einiion / / 7/3/ (GALILEO) Nume o sellies 7 Nume o lnes Nume o sellies e lne Pen uni Slo scin (scin eeen scecs in he sme lne) Noe scin (scin eeen lnes on he equo) Sellie hsin (scin eeen scecs on consecuive lnes) Inclinion Oi ius 3 s 9 u 36 o / 3.3 * u 4 s * u * u (GALILEO) 96 km (GALILEO) Rih scension o he is lne noe α GAL () The Glileo Goun Semen ill conol he hole Glileo consellion; monio he sellie helh n u-lo o susequen ocs o uses. The key elemens o his such s clock synchonision ehemeis ill e clcule om mesuemens me y neok o oximely 4 Glileo eceivin sions. The Goun Semen is sli ino: The Goun Conol Semen (GCS) in che o monioin n & conol o he Glileo consellion The Goun Mission Semen (GMS) in che o he eeminion n isseminion o he nviion n ineiy

40 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 36 o The Goun Mission Semen (lese see nex iue) is comose o: GSS: Glileo Senso Sions: GSS e in che o Glileo sellies nviion sinls monioin ssocie ivl ime mesuemens elive o hei eeence n esuls ouin o he Goun Semen Pocessin Fciliies. MDDN: Communicions neok OSPF Oiohy n Synchoniion Pocessin Fciliy in che o Oi eeminion n ime Synchonision Pocessin (OD&TS) i.e. Glileo sellies ehemeis n clock coecion mees esimion n eicion s ell s Sinl In Sce Accucy (SISA) eeminion o Glileo sellies. MGF: Messe Geneion Fciliy is in che o mulilexin n ouin nviion/ineiy o e sen o mission ulink. MUCF: Mission Ulink Conol Fciliy in che o eeminin he conc ln o ech sellie n o ech u-link sion nenn ec. ULS: U-link sions in che o nviion nsmission u o Glileo sellies PTF: Pecise Timin Fciliy in che o Pecision Time ocessin incluin To Wy Time Tnse (TWTT) ih UTC (k) n Glileo Sysem Time (GST) eslishmen n nume o iionl ciliies such s he MCF MSF SPF GACF MKMF SKMF n PRSKMF ec The Glileo Sysem oes no consie ISL echnoloy n hs no emnin seciicion in ems o sellie uonomy in he Glileo Sysem Requiemens ocumen. Concee seciicions cn e oun in he le elo GAL SATELLITE RELEVANT SPECIFICATIONS Sellie Wokin Wihou Gunee: The Glileo sellie shll uomiclly se he Sellie Nviion Sevice level sus l in ech Nviion D Messe o okin ihou unee i he sellie eceives no vli u-link sinls o eio hich i shll e ossile o e-se o ny vlue om minues o ois.

41 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 37 o

42 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 38 o GPS The NAVSTAR Glol Posiionin Sysem is mne y he NAVSTAR GPS Join Pom Oice he Sce n Missile Sysems Cene Los Aneles Ai Foce Bse Clioni. The GPS sce semen consiss o ino six oil lnes equiin minimum o ou sellies in ech o oee. The Glol Posiionin Sevice Sce Semen comises nominl consellion o eny ou sellies in meium-eh oi (s eine in he Tle elo) lus 6 in oi ses. Ech sellie ocss one oen nin sinl cyin clock synchonision n ehemeis. GPS SPACE SEGMENT Nume o sellies 4 Nume o lnes Nume o sellies e lne 6 s 4 Pen uni u 36 o / 5 Noe scin (scin eeen lnes on he equo) s * u 6 Inclinion 55 Oi ius km Rih scension o he is lne noe α GPS () The GPS consellion cuenly conins ou ieen yes o GPS sellies clle Block II Block IIA Block IIR n Block IIRM (is sellie lunche in Seeme 6 5). The llocion o sellies o lnes lelle om A o F n lne slos numee om u o 5 is eile elo:

43 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 39 o CURRENT BLOCK II/IIA/IIR/IIR-M SATELLITES LAUNCH LAUNCH FREQ US SPACE ORDER PRN SVN DATE STD PLANE COMMAND ** *II- 4 4 FEB *II- 3 JUN *II AUG *II-4 9 OCT *II-5 7 DEC *II JAN *II-7 6 MAR *II-8 AUG II OCT 99 Cs D5 83 *IIA- 3 6 NOV IIA JUL 99 Cs D6 55 IIA FEB 99 Cs A 89 *IIA-3 8 APR IIA JUL 99 R F 4 IIA SEP 99 Cs A4 8 IIA-6 3 NOV 99 Cs F6 3 *IIA DEC 99 R F5 75 *IIA-8 3 FEB IIA MAR 993 Cs C5 58 IIA MAY 993 R C4 657 IIA JUN 993 Cs A 7 IIA AUG 993 R B4 779 IIA OCT 993 R D4 877 IIA MAR 994 R C 37 IIA MAR 996 Cs C 3833 IIA JUL 996 Cs E IIA SEP 996 R B 43 IIA NOV 997 Cs A3 53 ***IIR- 4 7 JAN 997 IIR JUL 997 R F IIR OCT 999 R D 5933 IIR-4 5 MAY R E 636 IIR JUL R B3 647 IIR NOV R F 665 IIR JAN R E4 669 IIR JAN 3 R B 7663 IIR MAR 3 R D3 774 IIR- 47 DEC 3 R E 89 IIR MAR 4 R C3 89 IIR JUN 4 R F4 836 IIR NOV 4 R D 8474 IIR-M SEP 5 C4 * Sellie is no lone in sevice. ** US SPACE COMMAND eviously knon s he NORAD ojec nume; lso eee o s he NASA Clo nume. Assine successul lunch. *** Unsuccessul lunch.

44 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 4 o The GPS Goun Semen consiss o ive monioin sions (Hii Kjlein Ascension Isln Dieo Gci Coloo Sins) hee oun nenns (Ascension Isln Dieo Gci Kjlein) n Mse Conol sion loce Schieve AFB in Coloo. The GPS Sysem consies ISL echnoloy n hs iec seciicions in ems o sellie uonomy. Relevn inomion cn e oun in he le elo: GPS SATELLITE RELEVANT SPECIFICATIONS Block II Coesons o he sce vehicle numes SVN 3 houh. Block II sellies ee esine o ovie 4 ys o oeion ihou conc om he Goun Semen. Noe: The Block IIs ee lunche om Feuy 989 houh Ocoe 99. Block IIA Coesons o he sce vehicle numes SVN houh 4. Block IIA sellies ee esine o ovie 8 ys o oeion ihou conc ih he Goun Semen. Duin he 8 y uonomy ee ccucy ill e evien in he nviion messe Noe: The Block IIAs ee lunche om Noveme 99 houh Noveme 997. Block IIR Coesons o he sce vehicle numes SVN 4 houh 6. Block IIR sellies e esine o ovie les 4 ys o oeion ihou conc om he CS n u o 8 ys o oeion hen oein in he uonomous nviion (AUTONAV) moe. Full ccucy ill e minine usin echnique o nin n communicion eeen he Block IIR sellies. The coss-link nin ill e use o esime n ue he mees in he nviion messe o ech Block IIR sellie ihou conc om he Goun Semen Noe: The Block IIRs lunchin se in Jnuy 997 Block IIR-M Coesons o he sce vehicle nume SVN 53. Block IIR-M sellies incooe esec Block IIR o ne miliy sinls n secon civil sinl Noe: The Block IIR-Ms lunchin se in Seeme 5

45 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 4 o TECHNICAL APPENDIX D ON-BOARD OD&TS PROCESS) (OBSERVABLES FOR THE Pincil sellie o incil sellie osevle: To yes o osevles e use o oi eeminion nmely: Hlve To y ne coss-links Hlve Rne e coss-links hich e oine y line cominions o ohe moe elemenl osevles; conceely om convenionl seuone n Dole osevles. The ocess yielin o he oi eeminion inu osevles is exline heee ih he hel o he iue elo: Whee: i SV ees o he sce vehicle i ees o one y ne osevle (seuone) ein he nsmie n he eceive

46 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 4 o The suy consies h he one-y osevles e eive om he coelion eeen PRN coe enee y one scec in nsmission moe n n ienicl PRN coe elice y ohe scec in eceion moe. Conceely he suy mih consie y eul he olloin mesuemen scheme mons Pincil Sellie s is (e.. SV n SV ):.. SV ss he nsmission o he PRN A coe (is i) os moule on sysem cie s SV ss he nsmission o he PRN A coe (is i) os moule on sysem cie s SV ime SV ime 3. SV ens he nsmission o he PRN A coe A (ls i) os ime moule on sysem cie mx s SV 4. SV en he nsmission o he PRN A coe (ls i) os mx moule on sysem cie s SV ime 5. SV eceives he nsmission o he PRN A coe (is i) om ime moule on sysem cie s SV

47 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 43 o SV eceives he nsmission o he PRN A coe (is i) om ime moule on sysem cie s SV ens he eceion o he PRN A coe (ls i) om ime mx moule on sysem cie s SV SV 8. SV ens he eceion o he PRN coe (ls i) om moule on sysem cie s SV ime mx In his scheme: PRN A is common o ll sellies mx <<. Fo imensionin uoses he shoe oion ime mons sellies h is consiee is 6 ms hile he mximum nsmission uion hs een limie o 3 ms. SV n SV e ehe in nsmiin o in eceivin u neve oin oh cions simulneously. The C / N io o he eceive sinl llos vey ccue ckin. This is ensue y: o No em nenns ih smll sie loes oh nsmie n eceive ensuin: Hih nenn ins Asence o ineeence Asence o mulih o Hih nsmission sinl oe SV n SV hos el ime inomion on: o The osiion n velociy o ech scec o The clock ose n i o ech scec SV n SV hos n Aomic Fequency Sn

48 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 44 o In he ove escie scheme he coelion o he PRN A coe eceive eeen n mx y he SV ih elic o he PRN A coe enee inenlly in SV is ossile. The sme semen cn e one o he PRN A coe eceive eeen n mx y he SV. The olloin o one y osevles e oine in he ove scheme: ( ) n ( ) mx hich e iven y he olloin equions: mx ( mx ) ( mx ) C ( mx ) C ( mx ) H ( ) H ( ) ε ( ) TX mx ( mx ) ( mx ) C ( mx ) C ( mx ) H ( ) H ( ) ε ( ) TX mx mx mx mx mx Whee ( ) sellie ees o he isnce vele y he sinl nsmie om mx SV ( ) sellie mx mx ill i eches SV. mx ees o he isnce vele y he sinl nsmie om SV mx ill i eches ( mx ) ( mx ) SV. mx

49 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 45 o C ( ) ees o he on o clock o mx SV mx C ( ) ees o he on o clock o mx SV mx C ( ) C ( ) mx o he mximum hich o imensionin mx uoses cn e se in 3 ms (equivlen o 9 Km) ssumin convenionl AFS on o SV C ( ) ees o he on o clock o mx SV mx C ( ) ees o he on o clock o mx SV mx C ( ) C ( ) o he mximum hich o imensionin mx uoses cn e se in 3 ms (equivlen o 9 Km) ssumin convenionl AFS on o SV H ( ) TX ees o he on o PRN A coe sinl ou ely ihin he mx SV ylo om is eneion coheen ih he on o clock ill i eches he nsmiin nenn hse cene o he sysem equency s H ( ) mx mx ees o he on o PRN A coe sinl ou ely ihin he SV ylo om is eceion he eceivin nenn hse cene o he sysem equency s ill i eches he PRN A coe coelo on o mx H ( ) TX ees o he on o PRN A coe sinl ou ely ihin he mx SV ylo om is eneion coheen ih he on o clock ill i eches he nsmiin nenn hse cene o he sysem equency s H ( ) mx mx ees o he on o PRN A coe sinl ou ely ihin he SV ylo om is eceion he eceivin nenn hse cene o he sysem equency s ill i eches he PRN A coe coelo on o

50 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 46 o mx H ( ) H ( ) TX on o ssumin convenionl ou ely siliies o he TX mx SV nsmiin chin. H ( ) H ( ) TX he on o ssumin convenionl ou ely siliies o TX mx SV eceion chin. H ( ) H ( ) he on o ssumin convenionl ou ely siliies o mx SV nsmiin chin. H ( ) H ( ) he on o H ( ) ( ) TX ssumin convenionl ou ely siliies o mx SV nsmiin chin. H s one he is is ou ely ssocie o he SV nsmiin chin o he PRN A coe moule on he sysem equency s hile he secon is ou ely ssocie o he H ( ) ( ) TX SV eceion chin. H s one he is is ou ely ssocie o he SV nsmiin chin o he PRN A coe moule on he sysem equency s hile he secon is ou ely ssocie o he SV eceion chin. ( mx ) hich is lele s ε ( ) ε ees o he one y osevle eo mx ( mx ) is lele s ε ( ) s i oes no inouce ny conusion ε ees o he one y osevle eo mx hich s i oes no inouce ny conusion Theeoe he sic one y osevles une he ove menione coniions cn e exesse in he olloin simliie om:

51 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 47 o TX H H C C ε mx mx TX H H C C ε mx mx The isnces mx n mx cn e convee o he osevle hich coesons ih he eomeicl isnce eeen SV n SV ime. Fo his uose i cn e use he ioi knolee o: mx hich cn oseve om Dole osevles o comue The sellie osiions n clocks ime Assumin ll he ove coecions e lie n in he eminoloy o so h i ees o he common nsmission ime i inlly esuls in: TX H H C C ε TX H H C C ε

52 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 48 o In ems o simulneiy eeen ieen osevions: n e simulneous n ' ' e no simulneous unless ' ' Consisenly he one y osevles e: [ ] [ ] c c Ech i [ ] cn e nsome in i [ ] C ˆ ˆ in he olloin y: [ ] ˆ ˆ ˆ ˆ C C TX TX TX TX H H H H C C C H H H H ε ε ˆ ˆ TX TX TX TX H H H H C C C H H H H ε ε ˆ ˆ

53 Nviion n Ineiy Auonomous Sellie Nviion Sysem issue 3 evision 6 - e 49 o Whee: ( ) ( ) ( ) is he isnce eeen sellies " ε ( ) ees o vee eeen ε ( ) n ε ( ) ε ( ) ees o he semi-ieence eeen ε n ε " n "" The osevle ˆ ( ) is use o oi eeminion e nume o mniulions escie es. This osevle hs he olloin chceisics: I is uely ionoshee-ee osevle. I is uely ooshee ee osevle I is uely on o clocks ee osevle I is no ece y ny miuiy I is ise y he moun (sloly vyin lon ime) ( H ( ) H ( ) ( H ( ) H ( ) TX TX I is ece y he locl mulih cuse y he sellie sucue ney he nenn eceivin he one y sinl I is ece y he locl on-o eceive noise The osevle ( ) Ĉ is n on o clock osevle hich neveheless is consiee jus n uxiliy mesuemen o he clock esimion ocess. This osevle hs he olloin chceisics: I is uely ionoshee-ee osevle. I is uely ooshee ee osevle I is uely oi/eomey ee osevle I is no ece y ny miuiy I is ise y he moun (sloly vyin lon ime) ( H ( ) H ( ) ( H ( ) H ( ) TX TX I is ece y he locl mulih cuse y he sellie sucue ney he nenn eceivin he one y sinl