文档介绍：上海交通大学
硕士学位论文
基于CardBus接口的DVB-T数字电视接收卡的设计
姓名:蒋兆林
申请学位级别:硕士
专业:电子与通信工程
指导教师:郑世宝;王国中
20060701
上海交通大学工程硕士学位论文摘要
基于 CardBus 接口的 DVB-T 数字电视接收卡的设计

摘要
近年来,数字电视技术已经成为电视广播、多媒体网络以及通信领
域的一个热点,该技术具有抗干扰能力强、频带资源利用率高等特点,
它的应用可以提供优质的电视图像和更多的视频服务。
本文首先阐述了 MPEG-2 视频压缩算法和解码原理;介绍了目前常见
的数字电视标准,并进行了对比;阐述了 DVB-T 数字电视地面传输标准
及其解调;其次,详细介绍了基于 CardBus 接口的,符合 DVB-T 传输标
准的数字电视接收卡的实现,说明了该数字电视接收卡的系统结构、
CardBus 接口适配器芯片的设计、该接收卡的硬件实现、驱动软件和应用
程序的编程;最后,介绍了该接收卡的测试方法、测试条件以及试验结
果。
与以往一般的数字电视机顶盒设计方案不同的是,该数字电视接收
卡基于高性能的 32 位 CardBus 接口,实现前端模块的控制和 TS 码流的
传输,采用软解码设计方法和 DirectShow 的软件技术,实现 MPEG-2 压
缩码流的解码和视音频的播放,节省了成本,减小了体积,降低了功耗,
增加了移动和携带的方便性。

关键词:MPEG-2,DVB-T,CardBus,DirectShow,数字电视,机顶盒

第 I 页
上海交通大学工程硕士学位论文 ABSTRACT
DEVELOPMENT OF THE CARDBUS INTERFACE DVB-T
RECEIVER

ABSTRACT
Recently, Digital television has e a very promising technology for
TV broadcasting, & communication, which could offer excellent
image quality and much more video services due to it’s good anti-interfere
capability and less frequcy resource occupancy.
This thesis begins with the explanation of the MPEG-2 video
compression algorithms and decoder theory, as well as the introduction and
comparing of the digital television standard mon use, the DVB-T
digital terrestrial television standard and demodulation. Secondly, the
implementation of the CardBus DVB-T Receiver ( CardBus PC Card ) is
explored in detail, including system architecture, designing of CardBus
interface adapter, hardware development, WDM driver and application
programming. Finally, introduce the testing methodology and test result.
Differ from general solution of digital television Set Up Box, this
DVB-T Receiver control the front end module and transfer the transport
stream based on 32bits high performance CardBus interface, utilize soft
decoder and DirectShow technology to implement MPEG-pressed
transport stream decoding and video & audio rendering. So, it’s cost and