一种采用匹配滤波器插值的符号定时同步方法

刘祖军; 王杰令; 易克初

您当前的位置：

首页 >

文章列表页 >

一种采用匹配滤波器插值的符号定时同步方法

更新时间：2025-12-08

- 一种采用匹配滤波器插值的符号定时同步方法
- Symbol Timing Synchronization Using Interpolated Matched-Filters
- 西安交通大学学报 2008年42卷第12期页码：1550-1554
- 作者机构：
  
  西安电子科技大学综合业务网理论与关键技术国家重点实验室,西安,710071
- 作者简介：
- 基金信息：
  
  : 2008-04-09. 作者简介: 刘祖军(1976-),男,讲师,博士后. 基金项目: 国家自然科学基金资助项目(60572148);中国博士后科学基金资助项目(20070411119)
- DOI：
  中图分类号： TN911;TN914.3
- 网络首发：2008-12-10，
  
  纸质出版：2008
- 稿件说明：
移动端阅览
刘祖军, 王杰令, 易克初. 一种采用匹配滤波器插值的符号定时同步方法[J]. 西安交通大学学报, 2008,42(12):1550-1554.

刘祖军, 王杰令, 易克初. Symbol Timing Synchronization Using Interpolated Matched-Filters[J]. 2008, 42(12): 1550-1554.
刘祖军, 王杰令, 易克初. 一种采用匹配滤波器插值的符号定时同步方法[J]. 西安交通大学学报, 2008,42(12):1550-1554. DOI：

刘祖军, 王杰令, 易克初. Symbol Timing Synchronization Using Interpolated Matched-Filters[J]. 2008, 42(12): 1550-1554. DOI：

摘要

针对多项滤波器组符号定时同步方法复杂度高的问题

提出一种基于匹配滤波器插值的符号定时同步方法.该方法根据定时误差调整插值步长

通过不同的插值步长对预设的匹配滤波器脉冲响应进行插值

调整匹配滤波器的群延时

从而实现符号的定时同步.与传统的多相滤波器组方法相比

该方法复杂度低

易于实现高精度符号定时同步.采用匹配滤波器插值构建了同步环路

并以每符号2采样值的采样速率进行了环路仿真

结果表明该方法比复杂度相当的多相滤波器组方法在误码率为10

-3

时信噪比提高约1 dB

能够以更低的复杂度实现高精度符号定时同步.

Abstract

To overcome the high complexity of the symbol timing synchronization method using polyphase filterbank

a symbol timing synchronization method based on interpolated matched filters is proposed. In the proposed method

the interpolation step is adjusted according to timing errors

and is used to interpolate the discrete pulse response of the preinstalled matched-filter

so that the group delay of matched-filter is adjusted to achieve symbol timing synchronization. The proposed method has less complexity and provides precise symbol timing synchronization more easily than the polyphase filterbank method has. The synchronization loop with the interpolated matched-filters has been simulated at 2 samples per symbol. The simulation results show that the proposed method brings performance improvement of approximately 1 dB in signal to noise ratio(SNR)compared to the polyphase filterbank method at equivalent complexity when bit error r

atio is 10

-3

and can provide precise symbol timing synchronization with less complexity.

关键词

Keywords

references

MUELLER K H, MULLER M. Timing recovery in digital synchronous data receivers [J]. IEEE Transactions on Communications, 1976, 24(5):516-531.

D'ANDREA A N, LUISE M. Optimization of symbol timing recovery for QAM data demodulators [J]. IEEE Transactions on Communications, 1996, 44(3):399-406.

SIMON M K, TKACENKO A. Noncoherent data transition tracking loops for symbol synchronization in digital communication receivers [J]. IEEE Transactions on Communications, 2006, 54(5):889-899.

HARRIS F J, RICE M. Multirate digital filters for symbol timing synchronization in software defined radios [J]. IEEE Journal on Selected Areas in Communications, 2001, 19(12):2346-2357.

GARDNER F M. Interpolation in digital modems, part I: fundamentals [J]. IEEE Transactions on Communications, 1993, 41(3):501-507.

ERUP L, GARDNER F M, HARRIS R A. Interpolation in digital modems, part II: implementation and Performance[J]. IEEE Transactions on Communications, 1993, 41(6):998-1008.

KIM D, NARASIMHA M J, COX D C. Design of optimal interpolation filter for symbol timing recovery[J]. IEEE Transactions on Communications, 1997, 45(7):877-884.

MAHLOUJI M, DANESFAHANI R. An investigation into timing synchronization of π/4-DQPSK signals using Gardner symbol timing error detection algorithm and polyphase filterbanks [C]∥Proceedings of ICTTA'06. Piscataway, NJ, USA:IEEE Press, 2006:2274-2278.

DRIESSEN P F. DPLL bit synchronizer with rapid acquisition using adaptive Kalman filtering techniques[J]. IEEE Transactions on Communications, 1994, 42(9): 2673-2675.

ZHU Weiping, YAN Yupeng, AHMAD M O, et al. Feedforward symbol timing recovery technique using two samples per symbol [J]. IEEE Transactions on Circuits and Systems I, 2005, 52(11):2490-2500.

CANDAN C. An efficient filtering structure for Lagrange interpolation [J]. IEEE Signal Processing Letters, 2007, 14(1):17-19.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

冷库水平空气幕热湿阻隔性能数值模拟研究

采用试验设计方法的第三代CO2气体箔轴承箔片几何参数敏感性分析

电动车辆间接热系统快速除湿响应迟滞机理及优化控制策略

混合电解槽阵列协同的风光耦合制氢系统双层多目标优化

不同板叠材料热声热机能量转换过程数值模拟研究