Early warning information releasing system based on adaptive grouping

被引：0
|
作者：
Chen S. [1 ]
Yanyan Z. [1 ]
机构：
[1] College of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Jiangsu
来源：
Information Technology Journal | 2011年 / 10卷 / 09期
关键词：
Adaptive grouping; Business information channel; Digital audio broadcasting;
D O I：
10.3923/itj.2011.1842.1846
中图分类号：
学科分类号：
摘要：
A design scheme of message transmission in business information channel of DAB (Digital Audio Broadcasting) transmitter was presented based on the structure of DAB information channel. According to the demand of diversity, real-time and intelligence for transmitting message by DAB, an adaptive packet mode of transport mechanism is put forward to release various text messages (weather warning information, traffic information, etc.) through DAB transmitting system aimed at MOT (Multimedia Object Transfer) protocol. Through the method of adaptive grouping, flexibility and capacity utilization of sub-channels in DAB transmission system are improved greatly. Thus, it is convenient for transfer various early warning information efficiently. The encoding scheme based on adaptive grouping has been achieved through DAB system at present. © 2011 Asian Network for Scientific Information.
引用
收藏
页码：1842 / 1846
页数：4
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