CMMB车载移动电视后台搜索的研究与设计  

Research and Design of CMMB Car Mobile TV Background Search

作　　者：蒋小燕[1] 

机构地区：[1]常州工学院电子信息与电气工程学院,江苏常州213002

出　　处：《电视技术》2013年第23期46-49,共4页Video Engineering

基　　金：江苏省高校自然科学研究基金项目(12KJD510002);常州工学院自然基金项目(YN1214);常州科技支撑项目(CE20110031)

摘　　要：针对汽车行使过程穿梭于城市与城市之间,不同城市的电视频率划分不同,导致CMMB移动数字电视接收在边界点中断,设计了一种后台自动搜索电视节目信号,解析电视节目列表的方法,实现收看电视节目的无缝切换,阐述了系统框图,给出了系统软件设计,实验与应用证明该方法在多频网及单频网中都高效可行。When implementing CMMB in the automotive that is traveling in different cities, moreover the frequencies are allocated differently in different cities, so the TV signal suspends near to the boarder of two cities. In order to receive CMMB TV signal seamlessly, this design takes use of one algorithm called background search scan TV signal and parser the TV program list in the background and watch TV foreground. The system and its software are introduced in this paper, and the results that it is very effective and reliable are verified in the lab and in filed on the FN and MFN condition.

关 键 词：CMMB 分集接收 移动电视 复用帧 ESG 

分 类 号：TN943[电子电信—信号与信息处理]