基于DVB-T的地面广播数字电视接收系统设计及实现
文献类型：学位论文
| 作者 | 洪小舟 |
| 学位类别 | 博士 |
| 答辩日期 | 2003 |
| 授予单位 | 中国科学院声学研究所 |
| 授予地点 | 中国科学院声学研究所 |
| 关键词 | 数字电视 机顶盒 |
| 其他题名 | Digital terrestrial TV receiver designing based on DVB-T |
| 中文摘要 | 随着广播电视数字化的发展，机顶盒作为数字电视广播系统的终端设备，得到了越来越广泛的应用。数字电视已经进入普通家庭，电视观众在家里可以收看到成百上千的电视频道，享受到高清晰度画质和音质的电视节目，以及形形色色的图文交互等信息。在数字电视的大家庭中，地面广播数字电视因为其无线接收、无须重新布网以及支持移动接收的特性，尤其是作为现行模拟地面广播的取代者，其传输方式及接收技术在现阶段尤为受到重视。本文完成了一个基于欧洲DVB-T标准的地面广播数字电视接收机顶盒的方案设计及具体实现。文中概述了近年来国内外广播电视数字化的进展以及涉及的DVB数字视频广播标准、MPEG-2等标准，介绍了地面广播数字电视的DVB-T标准，详细分析探讨了其核心技术正交编码频分多路复用COFDM技术、接收设备的系统结构及其优缺点。在介绍上述地面广播数字电视的原理和技术背景基础上，本文描述了所完成的接收系统的方案设计及最终实现。剖析了技术方案的选择、方案设计中涉及的的系统平台的硬件结构和软件层次-采用荷兰飞利浦公司的DVB解码芯片PNX832O作为主芯片，选用TD1316和TDAIOO46作为调谐器和解调芯片搭建地面广播的接收前端，运用DVP系统框架，构建了接收系统的软硬件调试平台。在此基础上，完成了接收功能的设计、调试和实现，并进行了较为全面的测试。文中对涉及到的技术如用于电视领域的控制总线标准-IIC总线技术、pSOS实时操作系统、嵌入式系统及其软件设计、前端底层驱动软件、前端任务以及与前端任务相关的系统功能等进行了详细的阐述，并提出了进一步完善的考虑。最后，文章给出了本DVB-T接收系统的接收测试情况，包括测试条件，测试内容以及测试结果等。 |
| 英文摘要 | With the rapid developing of the digital broadcasting technology, set-top box is now widely used as the user-end equipment in the digital television broadcasing system. Digital TV began to appear in the ordinary family, consumer can enjoy thousands of programs along with all kinds of teletext information in their own home now, and the sound and image quality of the programs are all DVD quality, in the big family of the digital TV field, digital terrestrial TV is one of the most important one because of its wireless and mobile receiveing. This paper mainly introduces the system design and implementation of the digital terrestrial TV set-top box. The paper summarizes the current status of the development in digital TV, DVB standard, and MPEG-2 standard. The paper also introduces a sub-standard of the DVB standard, DVB-T standard, as well as its core technology COFDM and system structure. Based on the introduction of the theory and technology background of the digital terrestrial TV broadcasting, this paper describes the system design and implementation of the digital terrestrial TV receiving system, expatiates the system design selection, hardware structure and software hierarchy of the system platform - chose the single chip DVB decoder Philips PNX8320 as the main chip, use TD1316 tuner and TDA10046 demodulator to implement a receiving front end, and use the DVP system architecture to build the system software and hardware debug platform. Based on this platform, I finish the design, debug and implementation of the receiving function and perform a test. This paper also expatiates the control bus used frequently in TV field, IIC bus, the pSOS RTOS, embedded system design, software driver of the front end, front end task and the front end related system function. The paper also bring forward the problem needed to be solved. In the end, this paper mentions the test of this DVB-T receiving system, including the test condition, test contents and the test result. |
| 语种 | 中文 |
| 公开日期 | 2011-05-07 |
| 页码 | 89 |
| 源URL | [http://159.226.59.140/handle/311008/1068]  |
| 专题 | 声学研究所_声学所博硕士学位论文_1981-2009博硕士学位论文 |
| 推荐引用方式 GB/T 7714 | 洪小舟. 基于DVB-T的地面广播数字电视接收系统设计及实现[D]. 中国科学院声学研究所. 中国科学院声学研究所. 2003. |
入库方式： OAI收割
来源：声学研究所
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