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文章介绍了卫星电视的数字化传输技术，重点介绍其中的数字信道编码和调制技术，内容包括扰码、ＲＳ编码、交织编码、卷积编码和ＱＰＳＫ调制技术，及其相应的接收技术。
This paper introduces the digital transmission technology of satellite television, especially the digital channel coding and modulation technology, including scrambling code, RS coding, interleaving coding, convolutional coding and QPSK modulation, and its corresponding receiving technology.