广电卫星站高标清同播系统改造方案的设计与实施  

Design and Implementation of the Transformation Plan for High Definition Simultaneous Broadcasting System of Radio and Television Satellite Station

作　　者：石磊 SHI Lei(Yunnan Media Group,Kunming 650000,China)

机构地区：[1]云南广播电视台,云南昆明650000

出　　处：《电声技术》2024年第5期11-14,共4页Audio Engineering

摘　　要：为提升广播电视台电视节目的影响力,更好地满足用户对高质量电视节目的收视需求,急需加快广电卫星站电视节目高清、超高清化建设。根据广播电视卫星站的建设现状,提出一种基于四电平脉冲幅度调制(Pulse Amplitude Modulation-4,PAM4)技术的高标清同播系统改造方案。该方案通过扩建和改建标清电视上行通道,最终实现了广电卫星站高清和标清电视节目同传。In order to enhance the influence of television programs on radio and television stations and better meet the needs of users for high-quality television program viewing,it is urgent to accelerate the construction of high-definition and ultra high definition television programs on radio and television satellite stations.Based on the current construction status of broadcasting and television satellite stations,a high definition co-broadcasting system renovation plan based on Pulse Amplitude Modulation-4(PAM4)technology is proposed.By expanding and rebuilding the standard definition television uplink channel,the scheme finally realizes the simultaneous interpreting of high-definition and standard definition television programs at the radio and television satellite station.

关 键 词：广播电视 卫星站 高标清 同播系统 

分 类 号：TN943.3[电子电信—信号与信息处理]