浅谈有线电视网络窄播信号光插播技术  

Talking about the Narrowcasting Signal Optical Video Broadcast Technology in CATV Network

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450000

出　　处：《中国有线电视》2017年第12期1387-1389,共3页China Digital Cable TV

摘　　要：随着有线电视双向网络的高速发展,Cable Modem双向用户接入率不断提高,窄播信号的定向区域覆盖逐渐缩小,分前端机房窄播光发需求量也随之不断增加。在分前端机房信号传输中,使用DWDM波分复用技术,进行窄播光信号的插播,完成了广、窄播光信号的合波传输,从而大大减少了分前端机房网络的射频连接部分,光网络传输的稳定性使系统信号传输的稳定性和质量都有大幅提升。With the rapid development of bidirectional network in cable television, the access rate of bidirec-tional users of Cable Modem is continuously increasing, the directional coverage of narrowcasting signals isgradually reduced, and the demand for narrowcasting of front-end equipment rooms also increases. In the sub-front-end signal transmission room, the use of DWDM wavelength division multiplexing technology for narrow-cast light signal insertion, completed a wide and narrow broadcast optical signal multiplexing transmission,thus greatly reducing the front-end room network RF connection. The stability of optical network transmissionhas greatly improved the stability and quality of the system signal transmission.

关 键 词：广播 窄播 DWDM 光波分插复用器 

分 类 号：TN943.6[电子电信—信号与信息处理]