多载波传输系统的频偏及采样钟联合补偿算法  

Algorithm of frequency shift and sampling clock compensation for multi-carrier communication system

作　　者：李炎 周志平 李鑫 

机构地区：[1]同方电子科技有限公司,江西九江332007

出　　处：《信息技术》2012年第10期177-180,共4页Information Technology

摘　　要：以LTE下行信道为代表的多载波多天线传输系统中,不仅需要频域及时域补偿算法,且对不同接收通道的处理一致性提出了要求。利用内插滤波器组实现了联合数字补偿算法,并完成了该同步方案的定点化硬件实现。仿真及硬件实测结果表明,所提出的算法可基于流水线架构的处理过程,有效实现接收端的联合频偏及采样钟补偿,并有效满足多天线接收通道的一致性处理要求。The multi-carrier and multi-antenna communication system such as the downlink of LTE system requires not only frequency domain and time domain compensate algorithm,but also the processing consistency of different receive channel.This paper implements a joint digital compensate algorithm using interpolation filter,and transplants this synchronize scheme to fix-point hardware.The simulation result and the hardware test show the algorithm proposed can use a pipeline-based architecture to process received data,and the frequency shift and sampling clock offset compensation in the receiver can fit the requirements of channel consistency.

关 键 词：频偏补偿 采样钟同步 内插滤波器 

分 类 号：TN913.6[电子电信—通信与信息系统]