HFC的变化很大一部分原因是由数字化革命引起的,今后的广播电视系统结构和运营模式将会在媒体和网络的融合下改变,因此,广电运输网络面临的压力也越来越大。目前,很多人都越来越关注主干线上使用IP技术和光纤传输技术来建设广电宽带骨干网络,它究竟是一种怎样的技术以及其可行性表现在哪些方面呢?本文将作具体阐述。 Part of the reason for the change in HFC is caused by the digital revolution. In the future, the structure and operation mode of radio and television systems will change under the integration of the media and the Internet. Therefore, the pressure on radio and television transportation networks is also increasing. At present, many people are paying more and more attention to the main line using IP technology and optical fiber transmission technology to build radio and television broadband backbone network, what kind of technology is it and what its performance in what? This article will be elaborated.