一种改进的QAM信号时钟误差检测算法  

Modified Timing-error Detecting Algorithm for QAM Singal

作　　者：冷伟民[1] 潘长勇[1] 杨知行 

机构地区：[1]清华大学电子工程系微波与数字通信技术国家重点实验室,北京100084

出　　处：《电视技术》2008年第7期6-8,共3页Video Engineering

基　　金：国家"863"计划项目(2007AA1Z26b)

摘　　要：针对多电平信号(MPSK,QAM)提出了一种改进的Gardner时钟误差检测算法。仿真结果表明该算法能明显消除PAM/QAM信号检测中的自噪声,而且其计算复杂度很低。A modified Gardner timing-error detecting algorithm for multi-level signal（MPSK,QAM） is proposed. The simulation results show that the algorithm can obviously eliminate the self-noisy in the detecting of PAM/QAM signals. And in practical applications, the computational complexity of such algorithm is low.

关 键 词：时钟误差检测 自噪声消除 数字解调 符号同步 

分 类 号：TN911[电子电信—通信与信息系统] TN949.197[电子电信—信息与通信工程]