数字电视整体转换中广播窄播信号的传输与割接  

Signals Transmission and Cutover of the Digital TV Whole Conversion Broadcast and Narrowcast

作　　者：李玉峰[1] 

机构地区：[1]河南有线电视网络集团有限公司郑州分公司,河南郑州450052

出　　处：《中国有线电视》2014年第3期250-252,共3页China Digital Cable TV

摘　　要：伴随着互联网的快速发展,利用互联网进行电影、电视剧等视频的点播或在线观看已经非常普遍,IPTV、OTT等新概念新技术不断涌现。因此有线电视数字化、双向化是有线电视发展的必然趋势。受到机顶盒配送能力、网络线路质量等因素的影响,需要分区域分批次逐步进行数字电视信号割接转换。机房是广播窄播信号的头端,做好机房广播窄播信号的规划及传输割接工作,才能保证高质量数字电视信号的整体转换。With the rapid development of Internet , using the Internet for on-demand or on-line movies, TV shows and other video viewing is very popular , IPTV, OTT and other new concepts of new technologies contin-ue to emerge.Therefore, digital cable TV, two-way cable television is the inevitable trend of CATV develop-ment.Due to the effect of the set-top box distribution capabilities , network quality and other factors , we need to carry out the digital TV rectifying turn gradually sub-region and batches .Machine room is the head-end of wide,narrowcast signals , only the good planning , construction and Cutting work of the machine room signal , can ensure the whole conversion of high-quality digital television signals .

关 键 词：数字电视 整体转换 广窄播信号 传输与割接 

分 类 号：TN949.197[电子电信—信号与信息处理]