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基于训练序列的载波频率同步算法的FPGA实现
引用本文:于东海,张海健,桂益俊,邹采荣,张晓君.基于训练序列的载波频率同步算法的FPGA实现[J].电力系统通信,2006,27(9):42-45.
作者姓名:于东海  张海健  桂益俊  邹采荣  张晓君
作者单位:1. 东南大学,毫米波国家重点实验室,江苏,南京,210096
2. 东南大学,移动通信国家重点实验室,江苏,南京,210096
3. 东南大学,信息处理与应用工程研究中心,江苏,南京,210096
摘    要:根据电力线信道的特点,采用基于OFDM技术的多载波系统来实现电力线系统载波通信,提出了一种具有实用价值的小数频率同步的实现方法。文章具体分析了基于OFDM技术的电力线通信系统的同步原理和实现方法,整个频率同步模块被分成估计和纠正2个部分。系统采用X ilinx ISE 6.2 i来完成开发,同时,给出了其在ModelSim Se5.7g下的仿真结果,通过在实际系统中的测试,证明了该同步方法是完全可行的。

关 键 词:正交频分多路复用  频率同步  训练序列  现场可编程门阵列
文章编号:1005-7641(2006)09-0042-04
收稿时间:2006-05-17
修稿时间:2006-05-30

FPGA implementation of frequency synchronization arithmetic in time domain based on training sequence
YU Dong-hai,ZHANG Hai-jian,GUI Yi-jun,ZOU Cai-rong,ZHANG Xiao-jun.FPGA implementation of frequency synchronization arithmetic in time domain based on training sequence[J].Telecommunications for Electric Power System,2006,27(9):42-45.
Authors:YU Dong-hai  ZHANG Hai-jian  GUI Yi-jun  ZOU Cai-rong  ZHANG Xiao-jun
Abstract:According to the characteristics of power line,multi-carriers OFDM technique is implemented to power line communication.This paper presents a realizing method to implement decimal fraction frequency synchronization in the OFDM system,the theory and the implement method are analyzed in detail.The whole synchronization model is divided into two parts,which is estimation part and correction part.Xinlinx ISE 6.2i has been used to accomplish this design.At the end of this paper the correlative simulation results using ModelSim Se5.7g are given out.The measure has been proved applicable in OFDM system.
Keywords:Orthogonal Frequency Division Multiplexing(OFDM)  frequency synchronization  training sequence  FPGA
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