基于高阶循环累积量的QAM载波频率估计  

Estimation of QAM Carrier Frequency Based on High-Order Cyclic Cumulants

作　　者：陈龙飞[1] 

机构地区：[1]西安电子科技大学电子工程学院,陕西西安710071

出　　处：《电子科技》2013年第10期4-6,共3页Electronic Science and Technology

摘　　要：利用通信信号的循环平稳特性,通过对QAM信号高阶循环累积量的研究,提出了一种基于高阶循环累积量的星形和方形QAM载波估计算法。并且对该算法进行了理论分析,仿真结果证明,该算法的正确性和有效性。An algorithm based on higher-order cyclic cumulants for the estimation of SQAM and MQAM carrier frequency is proposed. The algorithm utilizes the cyclostationary property of communication signals and the higher-order cyclic cumulants of QAM signals. The theory of this algorithm is analyzed. The efficiency of the proposed esti- mation algorithm is verified via Matlab simulations.

关 键 词：载波频率估计 高阶循环累积量 QAM 

分 类 号：TN911.6[电子电信—通信与信息系统]