Ku波段卫星数字广播-毕业论文外文翻译

Ku波段卫星数字广播-毕业论文外文翻译

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1、SatelliteTVstationKubandcomputeraideddesign   一、外文原文SatelliteTVisthroughthesynchronoussatellitestothegroundonTV,in1985China'srentislocatedinlongitude65degreesofinternationalcommunicationsatellitetotransmitthecentraltelevisionandeducationtelevisionprog

2、rams.Later,alongwithChina'sreformandopeningup,andlaunchedacommunicationssatelliteandgreatlyenhancetheTVcoverageinChina,andpromotethedevelopmentofeducationinourcountryelectronic.Throughsatellitetelevisionprograms,imageisclearstability,soundpleasingtoth

3、eear.Atthesametime,italsohasthetransmissioncapacity,andtransmitprogramsmoreadvantages.DuetothehighfrequencybandKuwithwiderange,andfrequencychannelcapacitybigadvantages,soKubandsatellitedigitalradioatpresentinourcountryisintherapidrisethesituation,thed

4、evelopmentpotentialishuge,foregroundisveryattractive.SincethesatelliteTVstationdesign.Toreceivesatellitebytechnicalparameters,builtthesite'sgeography,electromagneticenvironmentandtheoptionalequipment,andmanyotherfactors,sowanttobeintheprocessofsite,th

5、ecalculationandanalysisofcarefullyselectedtheplanthantoachievetheoptimaltechnicalandeconomicindexes.Since1963thefirstplanetthatistheearthsynchronoussatellitelaunchRuGuirealizedhumanusesatelliteinformationsincethedream,satellitecommunicationsexperience

6、forthedevelopmentoftheapplicationofseveralstages,cardinalprincipleis:thefirststage:the1960sto70s,satellitecommunicationisstillintheinitialstage,manyinternationalsatellitecommunicationorganizations,suchastheIntelsat,Inmarsatetcestablished,andestablishs

7、everalinternationalsatellitecommunicationsystem,launchedainternationalsatellitecommunicationsandTVtransmissionofanewpage;Secondstage:themid1970sto80s,isasatellitecommunicationindomesticcommunicationfieldsofapplicationexuberantperiod,manycountrieshaves

8、etuptheirowndomesticsatellitecommunicationsystems,ourcountryalsolauncheddongfanghongtestcommunicationsatellite,establishedtheSTWsystem;Thethirdstage:the1980sto90s,satellitecommunicationsusheredinarevolutionarychange,appearedVSATthepopularizati

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