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讨论了光纤同轴混合网（ＨＦＣ）物理层特点及相应的编码方案，对一种方案进行了计算机模拟，结果表明该方案可用于计算机通讯服务．
The characteristics of HFC physical layer and corresponding encoding schemes are discussed. A scheme is simulated by computer. The results show that this scheme can be used in computer communication service.