数字视频广播有线系统中的解调与信道解码

The Demodulation and Channel Decoding of Digital Video Broadcasting Cable System

讨论了数字视频广播有线系统标准中正交幅度解调和信道解码的基本原理和具体实现方案 .在专用硬件和应用软件的配合下 ,实现了一个数字有线接收前端系统 .该系统与符合数字视频广播标准的解码系统相连接 ,即可组成一个数字有线电视机顶盒 ,通过有线电视网 ,该盒可接收占用频带资源少。

Discuss the principle and detailed implementation of Quadrature Amplitude Demodulation and channel decoding for DVB C.With ASICs and application software,a digital cable receiving front end is designed and realized. By connecting it with a DVB decoding sytstem,a digital CATV receiving Set\|Top Box can be actualized and receive digital programs with studio quality through CATV network.