Joint Frequency-Phase Offset Estimation Based on a Symmetrical Frame Structure

YU Zhong-yang; Bai Bao-ming

doi:10.3969/j.issn.0372-2112.2017.11.024

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Joint Frequency-Phase Offset Estimation Based on a Symmetrical Frame Structure

更新时间：2025-07-16

- Joint Frequency-Phase Offset Estimation Based on a Symmetrical Frame Structure
- Acta Electronica Sinica Vol. 45, Issue 11, Pages: 2754-2760(2017)
- 作者机构：
  
  1. 西安电子科技大学综合业务网理论及关键技术国家重点实验室,陕西,西安,710071
  2. 通信网信息传输与分发技术重点实验室,河北,石家庄,050081
  3. 西安电子科技大学综合业务网理论及关键技术国家重点实验室,陕西,西安,710071
  4. 通信网信息传输与分发技术重点实验室,河北,石家庄,050081
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2017.11.024
  CLC： TN911.23
- Published Online：25 November 2017，
  
  Published：2017
- 稿件说明：
移动端阅览
YU Zhong-yang, Bai Bao-ming. Joint Frequency-Phase Offset Estimation Based on a Symmetrical Frame Structure[J]. Acta Electronica Sinica, 2017, 45(11): 2754-2760.
DOI：

YU Zhong-yang, Bai Bao-ming. Joint Frequency-Phase Offset Estimation Based on a Symmetrical Frame Structure[J]. Acta Electronica Sinica, 2017, 45(11): 2754-2760. DOI： 10.3969/j.issn.0372-2112.2017.11.024.

摘要

针对短突发通信系统中联合频相估计的剩余频偏对相偏估计的影响，首次引入对称帧结构的概念.首先，基于一种通用（非对称）帧结构，给出了对称帧结构的概念，并推导出基于此结构的数据辅助和非数据辅助两种同步模式下的载波参数估计克拉美罗界.然后，根据该对称帧结构下载波参数估计克拉美罗界的特征，提出了一种基于对称帧结构的联合频相估计.仿真结果表明，以基于最大似然准则的联合频相估计为例，相较于采用非对称帧结构的相偏估计，采用对称帧结构的相偏估计可以获得更低的均方误差和更大的抗频偏能力.

Abstract

Considering the impact of the joint frequency-phase offset estimation frequency error on the phase offset estimation in short burst communication systems

a symmetrical frame structure is introduced.First

based on a generalized (asymmetrical) frame structure we give a concept of the symmetrical frame structure and then develop the corresponding data-aided (DA) and non-data-aided (NDA) Cramer-Rao Bounds (CRBs) for the carrier parameter estimation.Then

according to the above CRB characteristic a joint frequency-phase offset estimation is proposed using the symmetrical frame structure.Taking the maximum likelihood (ML) based joint frequency-phase offset estimation for an example

simulation results show that the phase offset estimation based on the symmetrical frame structure can achieve lower mean square error (MSE) and have better ability against the large frequency offset compared with the phase offset estimation based on the asymmetrical frame structure.

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