摘要
详细探讨了数字电视时代数字电视联网的需求及比较,结果表明:1 550光纤传输技术结合光色散补偿技术,在数字电视联网应用中有很强的技术和成本等综合竞争优势。对1 550光纤传输技术在数字电视联网应用中出现的问题以及是否需要色散补偿的问题进行了分析,得出1 550光纤传输技术在数字电视联网应用中色散补偿是很有必要的。最后介绍了1 550数模混合传输网络应用设计实例。
We discuss digital TV optical transmission applications and requirement. By comparison, it shows that 1550 CATV optical transmission technology combining optical dispersion has very strong competition advantage in technology and cost, especially in ultra-long distance status applications. We analyze the questions of 1550 digital TV optical transmission and whether optical dispersion is needed. We educe that the optical dispersion is needed well in 1550 ultra-long distance digital TV optical transmission system. At last, we present a example system of 1550 digital and analog TV transmission networks.
出处
《中国有线电视》
2005年第19期1897-1902,共6页
China Digital Cable TV
关键词
光纤传输
数字电视
色散补偿
CATV
Optical transmission
digital TV
Dispersion compensation
CATV
