edrs summary
DESCRIPTION
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
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