摘要： 针对卫星数字电视接收的低成本应用，提出一种基于龙芯的DVB-S卫星数字电视接收系统方案。采用龙芯2E平台的PCI总线，充分应用龙芯处理器对MPEG-2的高效解码特性，结合特定前端调谐器和后端TS流捕获芯片设计整个系统。结果表明，该系统符合DVB- S/MPEG-2标准，且结构简单、便于实现、成本低廉，对拓展龙芯处理器产业化应用有重要工程应用价值。
关键词:
数字电视,
龙芯,
DVB-S信号,
接收系统
Abstract: For low-cost application of satellite digital TV signal receiving, this paper presents a project of the DVB-S satellite digital TV receiving system on the Godson-based platform. Using the PCI bus on the Godson-2E and fully utilizing the characteristic of the Godson-2E processor for decoding MPEG-2 with high performance, the entire system is designed combined with the special front-end tuner module and the back-end chip which captures the Transport Stream(TS). It proves that the whole system is in line with the DVB-S/MPEG-2 standards and the advantage of the system, such as simple structure, easy realization and low cost, also makes it great value in engineering application for developing the industrialization application of the domestic processors.
Key words:
digital television,
Godson,
DVB-S signal,
receiving system
中图分类号:
吴少刚, 李婷, 王彦. 基于龙芯的DVB-S信号接收系统设计[J]. 计算机工程, 2010, 36(14): 4-6.
TUN Shao-Gang, LI Ting, WANG Pan. Design of DVB-S Signal Receiving System Based on Godson[J]. Computer Engineering, 2010, 36(14): 4-6.