A Strong Robust Carrier Parameter Estimation Decoupling Technique

XU Heng-zhou; ZHU Hai; LIU Hui; YU Zhong-yang; REN Chun-xiao

doi:10.3969/j.issn.0372-2112.2020.06.016

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A Strong Robust Carrier Parameter Estimation Decoupling Technique

更新时间：2025-07-16

- A Strong Robust Carrier Parameter Estimation Decoupling Technique
- Acta Electronica Sinica Vol. 48, Issue 6, Pages: 1156-1161(2020)
- 作者机构：
  
  1. 周口师范学院网络工程学院,河南,周口,466001
  2. 铁道警察学院公安技术系,河南,郑州,450053
  3. 西安电子科技大学通信工程学院,陕西,西安,710071
  4. 周口师范学院网络工程学院,河南,周口,466001
  5. 铁道警察学院公安技术系,河南,郑州,450053
  6. 西安电子科技大学通信工程学院,陕西,西安,710071
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.61801527, No.61702071);Network Security Collaborative innovation center of Liaoning Province;Key Scientific Research Programs of colleges and universities of Henan Province (No.19A520007, No.20A510017, No.20A520046);Science and Technology Development Program of Science and Technology Department of Henan Province (No.192102210279, No.182102310034);Training Project for Young Backbone Teachers of Universities in Henan Province (No.2018GGJS137)
- DOI：10.3969/j.issn.0372-2112.2020.06.016
  CLC： TP911.23
- Published Online：25 June 2020，
  
  Published：2020
- 稿件说明：
移动端阅览
XU Heng-zhou, ZHU Hai, LIU Hui, et al. A Strong Robust Carrier Parameter Estimation Decoupling Technique[J]. Acta Electronica Sinica, 2020, 48(6): 1156-1161.
DOI：

XU Heng-zhou, ZHU Hai, LIU Hui, et al. A Strong Robust Carrier Parameter Estimation Decoupling Technique[J]. Acta Electronica Sinica, 2020, 48(6): 1156-1161. DOI： 10.3969/j.issn.0372-2112.2020.06.016.

摘要

在高速移动通信系统中，收发双方往往面临较大多普勒频移和有限导频开销两个问题，从而会严重影响传统载波同步模式（Traditional Carrier Synchronization Pattern，TCSP）的整体性能.为此，本文提出了一种强鲁棒性的载波参数估计解耦合技术（Carrier Parameter Rstimation Decoupling Technique ，CPEDT），并应用到传统载波同步模式（CPEDT-TCSP）中.首先在接收端任取一段导频信号进行解调操作，然后对解调信号进行有效延迟长度为

的相关运算，一方面利用该相关运算的结果作频偏估计，另一方面利用取

为导频长度一半的相关运算结果的共轭形式与解调信号一同作最大似然相偏估计.理论分析和仿真结果均表明，考虑修正的数据帧结构，提出的CPEDT-TCSP可以实现传统载波同步模式中频偏估计和相偏估计的解耦合，同时还能够显著降低最大似然相偏估计的复乘运算量.

Abstract

Considering high-speed mobile communications

transceivers always work subject to the large Doppler shift and limited pilot overhead

which severely influences the overall performance of traditional carrier synchronization pattern (TCSP). Thus

a strong robust carrier parameter estimation decoupling technique (CPEDT) is proposed

followed by its application to the TCSP (yielding the CPEDT-TCSP). First

the pilot signals with certain length are selected at receiver to perform the demodulation operation

and then the correlation operation with an effective delay length

is perfor

med by the demodulation signals. On the one hand

the frequency offset is estimated by the result of the correlation operation

and on the other hand the conjugate form of the correlation operation result which takes α as half of the pilot length

is used to implement maximum likelihood (ML) phase offset estimation. Theoretical analysis and simulation results show that considering a modified data frame

the CPEDT-TCSP can implement the decoupling between both the frequency offset estimation and phase offset estimation in the TCSP

and can also reduce the complex multiplication operations for the ML phase offset estimation.

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