Frequency offset estimation algorithm for TD-SCDMA systems

Ren Xiukun; Bai Xiaoluo; Shen Zhanfeng; Liang Yun

doi:10.13756/j.gtxyj.2008.01.013

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Frequency offset estimation algorithm for TD-SCDMA systems

- Frequency offset estimation algorithm for TD-SCDMA systems
- Study on Optical communication Issue 1, Pages: 65-70(2008)
- 作者机构：
  
  1. 解放军信息工程大学信息工程学院
  2. 解放军信息工程大学信息工程学院河南郑州450002
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2008.01.013
  CLC： TN929.533
- Published：2008，
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[1]任修坤,白晓络,沈战峰,梁云.TD-SCDMA系统频偏估计算法[J].光通信研究,2008(01):65-70.

Ren Xiukun, Bai Xiaoluo, Shen Zhanfeng, et al. Frequency offset estimation algorithm for TD-SCDMA systems. [J]. (1):65-70(2008)
[1]任修坤,白晓络,沈战峰,梁云.TD-SCDMA系统频偏估计算法[J].光通信研究,2008(01):65-70. DOI： 10.13756/j.gtxyj.2008.01.013.

Ren Xiukun, Bai Xiaoluo, Shen Zhanfeng, et al. Frequency offset estimation algorithm for TD-SCDMA systems. [J]. (1):65-70(2008) DOI： 10.13756/j.gtxyj.2008.01.013.

摘要

文章从估计范围、估计精度和运算复杂度等方面

对现有的5种频偏估计算法进行研究和仿真

给出了算法的选择依据和详细的分析结果。在此基础上

研究了利用差分相关法、基于TS0的Midamble码与SYNC-DL码的联合频偏估计算法

分析了估计范围和运算复杂度。通过仿真发现

该算法可以将频偏控制在±0.05×10-6之内

较好地实现了精确的频偏估计

解决了频偏估计精度不易提高的难题。

Abstract

From aspects of estimation range

estimation accuracy and calculation complexity

five existing frequency offset estimation algorithms are studies and emulated

and the basis of their selection and detailed analytical results given.On this basis

the joint frequency offset estimation algorithm for TSO-based Midamble code and SYNC-DL code is studied by using the differential correlation method and the estimation range and calculation complexity analyzed.It is found from emulation that frequency offset can be controlled within ±0.05×10-6 by using this algorithm and accurate estimation in the signal acquisition system well achieved.

关键词

时分同步码分多址系统频偏估计性能分析

Keywords

TD-SCDMA systemfrequency offset estimationperformance analysis

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School of Communication & Information Engineering, Chongqing University of Posts and Telecommunications

College of Communication and Information Engineering, Chongqing University of Posts and Telecommunications

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