GYT 197-2003 数字卫星新闻采集通用技术规范

66GY/T197—2003Uniformtechnicalspecificationfordigitalsatellitenewsgathering2003-10-292003-12-01GYGY/T197—2003.................................................................................II................................................................................III1................................................................................12......................................................................13..................................................................14DSNG........................................................25............................................................................36........................................................................37............................................................................38........................................................................6IGY/T197—2003ITU-RSNG.1007-1IIGY/T197—2003DSNGDSNGDSNGIIIGY/T197—200312GB9159-1988GB12638-1990GB13615-1992GB/T17700-1999GB/T17975.1-20001GB/T17975.2-20002GB/T17975.3-20023ITU-RBO.121111/12GHzITU-RS.524-76GHz14GHz30GHzGSOEIRPITU-RS.580ITU-RS.726ITU-RSNG.722-1ITU-RSNG.770-1ITU-RSNG.1007-1ITU-RSNG.1152ITU-RSNG.1421ETSIEN301210ETSITR101221ETSIETS300327IESS308/QPSK33.1digitalsatellitenewsgatheringDSNG3.21GY/T197—20038PSKEightPhaseShiftKeyingBERBitErrorRatioDSNGDigitalSatelliteNewsGatheringEIRPEquivalentIsotropicallyRadiatedPowerGSOGeostationary-SatelliteOrbitIFIntermediateFrequencyIRDIntegrateReceiverDecoderQEFQuasi-Error-FreeQPSKQuaternaryPhaseShiftKeyingRFRadioFrequencyRSReed-Solomon-UPSUninterruptedPowerSupply4DSNGDSNG1IRDDSNG1DSNG2GY/T197—2003DSNGIRD55.1GB12638-19905.2GB9159-19886GB13615-199277.17.1.1MPEG-24:2:0MP@MLMPEG-24:2:2P@MLGB/T17975.2-20007.1.2MPEG-2GB/T17975.3-20027.22(204,188)8PSKn21=0.35aQPSK(I=12)RSRFMPEG-2a8PSK=0.2527.2.1DSNGGB/T17700-19997.2.2QPSK8PSKGB/T17700-19993GY/T197—2003QPSKα0.358PSKα0.350.257.2.3Eb/N011bit/symbolEb/N0adB1/20.924.52/31.235.03/41.385.55/61.536.0QPSK7/81.616.42/31.846.95/62.308.98PSK8/9b2.469.4aRSBER=210–4,RSQEFEb/N0b8PSK8/97.37.3.1GSO3°(3)12090%1G=29-25Log(ϕ)(1°ϕ20°)(1)G(dBi)ϕ14dB7.3.2-1dB30dB25dB-1dB1.067.47.4.1EIRP1dB/d7.4.20.025R3.5kHzR7.4.37.4.4EIRPGSO3°36GHzEIRP24GY/T197—200326GHzEIRP4kHzEIRPϕ(32–25logϕ)dB(W/4kHz)02.5°ϕ87°11dB(W/4kHz)07°ϕ9.2°(35–25logϕ)dB(W/4kHz)09.2°ϕ48°–7dB(W/4kHz)48°ϕ180°GSO3°314GHzEIRP3314GHzEIRP40kHzEIRPϕ(39–25logϕ)dB(W/40kHz)02.5°ϕ87°18dB(W/40kHz)07°ϕ9.2°(42–25logϕ)dB(W/40kHz)09.2°ϕ48°0dB(W/40kHz)48°ϕ180°GSO3°EIRP233dBϕ13GSO7.4.5EIRPEIRP-1dBW/4kHz5GY/T197—20038DSNG-35ºC55ºC5%100%16m/s3600m1000W/m2220V10%/50Hz1HzUPS6