沈阳有线电视网升级改造的设计与实现-电子与通信工程专业论文.docxVIP

淀躲毒线电爨圈丹级波造麴设诗与实袋Design 淀躲毒线电爨圈丹级波造麴设诗与实袋 Design and realize of Shenyang CATV Network upgrade reconstruction project Abstract This thesis conies from the actual upgrade＆reconsmaction project of Shenyang CATV (Community Antenna Television)Network．Its feasibility has direct impact on whether or not Shenyang CATV Network will become trunk supporting—network of Shenyang Infotrnation H抵r in the future。And it also reflects technological level ofdomestic CATV network． in recent year，as the network and di幽1 technology has been developed speedily；the Cable TV system has all earth shaking change．It iS di臻cult for the traditional analog TV system to fulfill the development demands of the radio and television broadcasting in the channel using-rating，the programs quantity，the service functions，the transmission performance and etc．So it should be converted into the Digital TV system gradually． With regard|0 the CableIV impmvemant project of Shcnyang Cable TV Station．this thesis designs and implements the Cable TV network system with the optic fiber transmission． 确e main research work in tlliS thesis includes： (1)Analyzing the acttmlity ofthe Cable TV system in Shenyang,and the demands ofthe Cable TV user．fix overall plan for network upgrade＆reconstruction； (2)According to the characteristic of the Cable TV in Shenyang，fix implementing procedures ofnetwork upgradereconstruction project； (3)Fix specific implementing schemes for front terminal and sub front terminal； (4)Fix specific designs for optical cable COre network and trunk network aS well as assumption for network resouro!s management system． Sh。nyang CATV Network will become an information highway wim the abitity tbr undertaking multiple integrated operations after network reconstruction．hlfonnation of many integrated operations call be transacted on this information highway，and implementation of integrated operations Can be carried out。Therefore，it will become mink suppoSing-network of Shenyang Information Harbor． nis arti