直播卫星业务和技术  

Direct Broadcast Satellite Service and Technology

作　　者：吕立锦 

机构地区：[1]中国卫星通信集团公司

出　　处：《中国电信建设》2005年第11期3-9,共7页

摘　　要：卫星直播业务使星上电视节目直接到户，接收者只需使用小型卫星接收天线即可接收到来自卫星上的电视或广播节目。90年代初以来，广播电视卫星直播业务、卫星移动通信和卫星数字音频广播业务等首先在美国取得了技术突破，并迅速步人产业化和商业化轨道，形成了推动经济增长的新兴产业。目前，这三项卫星通信广播业务正向全球迅速扩展，其中广播电视卫星直播产业发展尤为迅猛，并在运营中获得很大成功，已逐步走向成熟。Satellite direct broadcast service enables satellite TV programs to be directly transmitted to households, the receivers only need small satellite receiving antenna for receiving TV or radio programs from the satellites. Since the early 90s, radio TV satellite direct broadcast service, satellite mobile communication and satellite digital voice broadcast service etc. have achieved technical breakthrough first in the United States, and quickly walked into industrialized and commercialized orbit, formed new industry pushing economic increase. At present, such three satellite communication broadcast services are quickly expanding globally, of which radio TV satellite direct broadcast industrial development is the quickest, and has achieved great success in operation, gradually moved into maturity.

关 键 词：直播卫星业务 技术突破 卫星接收天线 广播电视卫星 卫星移动通信 电视节目 直播业务 广播业务 直接到户 广播节目 

分 类 号：TN943.3[电子电信—信号与信息处理] F426.7[电子电信—信息与通信工程]