基于DVB-C的QAM接收机定时恢复算法  

Timing Recovery Algorithm of QAM Receiver Based on DVB-C

作　　者：谭泽富[1] 廖明霞[1] 晏先伟[1] 吴婷婷[1] 

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065

出　　处：《电视技术》2010年第4期40-42,55,共4页Video Engineering

基　　金：重庆市教育委员会科学技术研究基金项目(KJ081105)

摘　　要：研究了符合DVB-C标准的QAM接收机的定时同步算法,该算法通过内插的方法实现符号的同步。对该同步环路进行仿真表明,该算法具有计算复杂度小、适合高阶QAM的解调等优良性能,能很好地完成QAM数字接收机的同步。In this paper, the timing synchronization algorithm of the QAM receiver is studied based on the standard of DVB-C, and the algorithm uses the method of interpolation to realize the symbol timing recovery. Through the simulation of the algorithm, it is proved that it has good performance and can fulfill QAM receiver＇s synchronization in a perfect way.

关 键 词：DVB—C QAM 定时恢复 内插算法 

分 类 号：TN933.2[电子电信—信号与信息处理] TN948.55[电子电信—信息与通信工程]