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DTTB系统接收端物理层接口设计与硬件实现
发表时间：2008-05-31 浏览量：2300 下载量：973
| 全部作者： | 沈萌，门爱东，康亮 |
| 作者单位： | 北京邮电大学电信工程学院多媒体中心 |
| 摘 要： | 本文论述了一种基于中国地面数字电视标准的数字电视系统接收端物理层接口的设计与硬件实现方法。它是物理层接收系统的最后一个模块，也是匹配物理层传输格式和信源解码输入格式的转换环节。由于物理层的数据一般为串行数据，并且不同的系统也对应着不同的数据速率和传输方式，而按照电视接收设备接口规范的要求，解码部分的传输流输入需要符合同步并行的接口标准（synchronous serial interface standord, SPI），因此这样一个在信道解码之后的数据格式转换接口就必不可少了。文中描述的接口转换系统分为四个部分、三条支路。本文详细介绍了系统的结构和不同模块功能实现的原理，并结合硬件平台论述了使用现场可编程门阵列（field programmable gate array，FPGA）硬件实现的思想和过程。 |
| 关 键 词： | 通信技术；地面数字电视标准；传输流接口；同步并行接口标准；现场可编程门阵列 |
| Title： | Design and realization of the physical layer interface of DTTB receiver |
| Author： | SHEN Meng, MEN Aidong, KANG Liang |
| Organization： | Multi-Media Communications Center, School of Telecommumication Engineering,Beijing University of Posts and Telecommunications |
| Abstract： | This paper presents the design of the physical layer interface of the DTTB receiver, Both of its construction and principle are introduced specificatly in this paper, together with its realization using field programmable gate array(FPGA). including its hardware realization using FPGA. This interface is the last module of the physical layer receiver, and is the conversion module converting data from the format of physical layer transportation to the format of video decoding. Data of physical layer are always series, with different data rates in different systems. But the input transform stream of video decoding should accord with the synchronous serial interface standard(SPI). So a conversion interface is necessary after channel decoding. The whole conversion system described in this paper is realized by three sub-modules. Both of its construction and principle are introduced specifically in this paper, together with its realization using Field Programmable Gate Array(FPGA). |
| Key words： | communication technology; digital television terrestrial broadcasting(DTTB); interface of transform stream; synchronous serial interface standard(SPI); field programmable gate array(FPGA) |
| 发表期数： | 2008年9月第10期 |
| 引用格式： | 沈萌，门爱东，康亮. DTTB系统接收端物理层接口设计与硬件实现[J]. 中国科技论文在线精品论文，2008，1（10）：1166-1169. |
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