DVB-C接收时的定时问题  

Timing Recovery in DVB-C Receiver

作　　者：武婷[1] 张传生[1] 

机构地区：[1]西安交通大学,陕西西安710049

出　　处：《电视技术》2004年第2期65-67,共3页Video Engineering

摘　　要：针对在数字解调器中,遇到的对接收信号的采样和接收信号的实际符号率不同步的问题,以DVB-C中对QAM信号接收为例,介绍了一种同步定时方案,并对其关键技术—内插滤波器进行了讨论。In many cases, sampling of the received data is unsynchronized to the data symbols in digital demodulator. This paper introduces a timing recovery method for QAM in DVB-C demodulator. In this method, interpolation is very important, which is discussed here.

关 键 词：DVB—C QAM 同步定时 内插滤波器 数字解调器 正交幅度调制 符号定时 

分 类 号：TN949.197[电子电信—信号与信息处理]