数字电视ATSC标准，英文原版。TheDigitalTelevisionStandarddescribesthesystemcharacteristicsoftheU.S.advancedtelevision(ATV)system.Thedocumentanditsnormativeannexesprovidedetailedspecificationoftheparametersofthesystemincludingthevideoencoderinputscanningformatsandthepreprocessingandcompressionparameters