standard broadcast channel 中文意思是什麼

standard broadcast channel 解釋
標準廣播波道
  • standard : n 1 標準,水準,規格,模範。2 旗;軍旗,隊旗;【徽章】標幟,標記;旗標,象徵。3 【植物;植物學】...
  • broadcast : adj 1 撒播的;廣泛散布的。2 【無線電】播音的,廣播的。n 1 (種子的)撒播。2 無線電廣播,播音;廣...
  • channel : n 1 水路,水道,渠,溝;海峽;河床,河底。2 (柱等的)槽,凹縫;【機械工程】槽鐵,凹形鐵。3 〈比...
  1. Standards of digital tv broadcast has specified transmitting systems which are based on various medium such as satellite - oriented transmitting system ( dvb - s ), cable - oriented transmitting system ( dvb - c ), terrestrial - oriented transmitting system ( dvb - t ). different system adopts different methods of channel codec, modulation and demodulation, but for signal source block codec, only mpeg - 2 standard has been applied for all the systems. as a compression standard being specified in digital tv broadcast transmission, mpeg - 2 has been widely involved on compression occasion

    對于數字電視信號的傳輸,數字電視廣播標準制定出基於多種媒質傳輸的傳輸系統,如衛星傳輸系統( dvb - s ) ,電纜電視傳輸系統( dvb - c ) ,地面廣播( dvb - t ) ,不同的傳輸系統制定不同的通道編碼和調制解調的方法,但是對于所有傳輸系統的信源編碼則一律採用mpeg - 2這一標準。
  2. Take european dvb - s standard applied to various satellite broadcast for example, the channel coding structure charts is established. the theory of modulation mode of qpsk and forward error correct including rs coding, convolutional coding, energy dispersal and interleaving are reseached. 4

    以歐洲的dvb - s適用於多種衛星廣播系統的標準為例,建立了通道編碼的結構圖,對數字視頻廣播中的前向糾錯(包括了rs碼,卷積碼、能量擴散和交織技術)和調制方式四相相移鍵控調制進行了研究。
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