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1 前言光纤同轴混合网 (ＨＦＣ)被世界公认为“信息高速公路最后一公里”———宽带综合业务用户网的最佳传输媒介 ,具有传输频带宽、传输速度快、使用费用低、普及率高、开发潜力大等鲜明的特点 ,在ＨＦＣ网上除了改善普通广播电视节目的传输 ,增加节目套数以外 ,还可以开展
1 Introduction Optical fiber coaxial hybrid network (HFC) is recognized by the world as “the last kilometer of the information superhighway” --- the best transmission medium of broadband integrated service user network, which has the advantages of wide transmission band, fast transmission speed, low use cost, universal High rate of development potential and other distinctive features, in addition to improving the HFC network transmission of ordinary radio and television programs to increase the number of programs in addition, you can also carry out