EDRS Summary

TELESP Marc Vizcarro Carretero EDRS (European Data Relay System) Introduction EDRS is an ESA project whose aim is to offer uninterrupted coverage to Europe harnessing the existing orbiting satellites around Earth and 2 geostationary satellites devoted to the system (EDRS-A and EDRS-C). In addition to that, EDRS intends to provide connection to LEO satellites and other spacecraft so that real-time communications between the spacecraft and their respective control center can be established. The key idea that makes EDRS differ from other conventional networks is that besides using RF technology (Ka-band), optical communications are also used, either between inter satellite links and ground – satellite links. The choice of the sort of communication is made regarding the power expense, the atmosphere impairments, the network conﬁguration, etc. EDRS is still under implementation of the ARTES-7 (Advanced Research in Telecommunications Systems) program. Nonetheless during years new applications have been discovered and several companies have been selected by ESA to work in specific areas. These are: Airbus Defence and Space, SpaceDataHighway (2011) o PPP (Public Private Partnership). o Test EDRS harnessing the satellites Sentinel-1 and 2 from the Copernicus program Astrium, GlobeNet program (2011) o PPP (Public Private Partnership). o Designing and developing the complete ground and space infrastructure for its further commercial exploitation. 1

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Report about EDRS (European Data Relay System) made for the optative subject TELESP (Space Communications) from the degree of Telecommunications Systems at UPC - ETSETB (Barcelona, Spain).

Transcript of EDRS Summary

TELESP Marc Vizcarro CarreteroEDRS (European Data Relay System)IntroductionEDRS is an ESA project wose aim is to o!er uninterrupted coverage toEuropearnessin" te e#istin" or$itin" satellites aroun% Eart an% &"eostationarysatellites%e'ote%totesystem(EDRS-Aan%EDRS-C)( )na%%ition to tat* EDRS inten%s to provide connection to LE+ satellites an%oter spacecra,t so tat real-time communications $etween te spacecra,tan% teir respecti'e control center can $e esta$lise%(Te .ey i%ea tat ma.es EDRS %i!er ,romoter con'entional networ.s is tat$esi%es usin" R/ tecnolo"y (0a-$an%)*optical communications are also use%*eiter $etween inter satellite lin.s an%"roun%1 satellitelin.s(Te coice o,tesort o, communicationisma%ere"ar%in"tepower expense* teatmosphere impairments* tenetworkconfguration* etc(EDRS is stillun%er implementation o, te ARTES-2 (Advanced Research inTelecommunications Systems) pro"ram( 3oneteless %urin" years newapplications a'e $een %isco'ere% an% se'eral companies a'e $eenselecte% $y ESA to wor. in speci4c areas( Tese are5 Air$us De,ence an% Space* SpaceDataighway (&677)o !!! "!u#lic !rivate !artnership$%o Test EDRS harnessing the satellites Sentinel-& and ' (romtheCopernicus program Astrium*)lo#e*et program (&677)o !!! "!u#lic !rivate !artnership$%o Designing and developing the complete ground and spacein(rastructure (or its (urther commercial exploitation%8ot pro"rams are closely relate%* tat is wy in or%er to un%erstan% tecurrent o$jecti'es o, EDRS* it is wort to ta.e a "lance at te )lo#e*et .eyo$jecti'es5 Enhancing glo#al coverage while improving regional downlink andconnectivity to and #eyond Europe Augmenting system capacity and per(ormance% +mproving system redundancy, relia#ility and sustaina#ility%Enhancing end-to-end security% Supportingthedevelopment andprovisiono( additional operational datarelay services%7TELESP Marc Vizcarro Carretero -acilitating the integration o( data relay terminals on user .E/0 1ASplat(orms with minimal technical, fnancial 2 operational impact%Extracted (rom Mattias 9ie"an%* :EDRS +n"oin" Pro"ram un%er )mplementation;Inter satellite optical communicationsTe main components o, tis sort o, communication are lasers* wic o!er ai" %irectional $eam an% recei'ers (optical-electrical %e'ice) wic ten% toa'e a "reat %irecti'ity as well( Tis $asic sceme wose common wor.in"wa'elen"t is 7