地面国标C=3780固定接收业务中嵌入C=1移动接收业务  

C=1 Mobile Reception Service Embedded into C=3780 Fixed Reception Service of DTTB in China

作　　者：徐孟侠[1] 

机构地区：[1]北京大学电子学系,北京100871

出　　处：《电视技术》2011年第22期8-11,28,共5页Video Engineering

摘　　要：在发射功率不变时,利用:1)地面数字电视的固定接收可使用增益高达15 dBi的方向性天线;2)地面国标C=1的现场测试C/N门限值与C=3 780相比要低约3.5 dB;探讨在C=3 780固定接收业务中嵌入C=1移动接收业务的可行性。With constant emission power and by utilizing： 1 ） directional antenna with gain up to 15 dBi can be used for fixed reception in DTIB, and 2） the C/N threshold value of C = 1 is lower than C = 3 780 by - 3. 5 dB in field trials, the availability of C = 1 mobile reception service embedded into C = 3 780 fixed reception service of China terrestrial television broadcasting is discussed in this paper.

关 键 词：地面数字电视广播 地面国标 移动数字电视 

分 类 号：TN949.197[电子电信—信号与信息处理]